Physiological Integrity

1960 soru

Soru 1721Soru →

During the morning rounds, a client who experienced a massive anterior myocardial infarction 12 hours prior is evaluated by the nursing team. Which of the following assessment findings should immediately alert the team to the early development of cardiogenic shock? Select all that apply.

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Cevap: Pulse pressure narrows from 45 mm Hg to 20 mm Hg; The client exhibits new-onset restlessness and mild agitation; Urine output totals 35 mL over the past two hours

Cevap

The early indicators of cardiogenic shock in this client are a narrowed pulse pressure, new-onset restlessness, and significant oliguria (35 mL over two hours).
Cardiogenic shock occurs when the heart fails to pump adequately, leading to reduced cardiac output and impaired tissue perfusion. The body's early compensatory mechanisms activate the sympathetic nervous system, causing peripheral vasoconstriction (which narrows the pulse pressure). Because blood flow to vital organs is compromised, early cerebral hypoxia manifests as restlessness or agitation, and decreased renal perfusion leads to immediate oliguria (urine output significantly less than the minimum 30 mL/hr baseline).

Adım Adım Çözüm

1
Identify the client's underlying risk profile.
The client had a massive anterior myocardial infarction 12 hours ago, which places them at extreme risk for left ventricular failure and subsequent cardiogenic shock.
Anterior MIs often involve a large portion of the left ventricle, severely compromising the heart's pumping ability.
2
Evaluate the hemodynamic parameters for signs of compensatory mechanisms.
A pulse pressure that narrows from 45 mm Hg to 20 mm Hg indicates compensatory peripheral vasoconstriction.
As cardiac output falls, the sympathetic nervous system constricts peripheral vessels, raising diastolic pressure while systolic pressure remains low or falls, causing the pulse pressure to narrow.
3
Assess systemic organ perfusion based on neurological and renal findings.
New-onset restlessness indicates cerebral hypoxia. A urine output of 35 mL over two hours (17.5 mL/hr) indicates compromised renal perfusion.
The brain and kidneys are highly sensitive to decreases in cardiac output. Restlessness is one of the earliest signs of hypoxia, and urine output falling below 30 mL/hr is a primary indicator of organ hypoperfusion.
4
Differentiate the findings of cardiogenic shock from other types of shock.
Bradycardia and warm, flushed skin are excluded.
Cardiogenic shock typically triggers compensatory tachycardia and causes cool, clammy skin due to systemic vasoconstriction. Warm, flushed skin is associated with distributive shock.

Anahtar Kavram

Early Assessment and Recognition of Cardiogenic Shock
Soru 1722Soru →

To ensure medication safety, a nurse is performing an independent double-check of a milrinone infusion for a client with acute decompensated heart failure. The client weighs 80 kg80 \text{ kg}. The infusion pump is currently delivering the medication at a rate of 15 mL/hr15 \text{ mL/hr}. The available medication is a premixed bag containing 20 mg20 \text{ mg} of milrinone in 100 mL100 \text{ mL} of 0.9% sodium chloride.

Calculate the dose the client is receiving in mcg/kg/min\text{mcg/kg/min}. Record your answer to the nearest hundredth.

Cevabı ve açıklamayı göster

Cevap: 0.63

Cevap

0.63
To determine the weight-based dosage from a known infusion rate, multiple conversions must occur. First, the concentration of the milrinone solution is 0.2 mg/mL0.2 \text{ mg/mL}, which converts to 200 mcg/mL200 \text{ mcg/mL}. At a rate of 15 mL/hr15 \text{ mL/hr}, the client receives 3,000 mcg/hr3,000 \text{ mcg/hr}. Dividing by 60 min/hr60 \text{ min/hr} reveals the client receives 50 mcg/min50 \text{ mcg/min}. Finally, dividing the total minute dose by the client's 80 kg80 \text{ kg} weight yields 0.625 mcg/kg/min0.625 \text{ mcg/kg/min}. Standard rounding rules require rounding 0.6250.625 up to 0.630.63.

Adım Adım Çözüm

1
Determine the concentration of milrinone in mg/mL.
20 mg÷100 mL=0.2 mg/mL20 \text{ mg} \div 100 \text{ mL} = 0.2 \text{ mg/mL}
Establishing the concentration is the first step to finding out how much medication is in each milliliter of fluid.
2
Convert the concentration from milligrams (mg) to micrograms (mcg).
0.2 mg/mL×1,000 mcg/mg=200 mcg/mL0.2 \text{ mg/mL} \times 1,000 \text{ mcg/mg} = 200 \text{ mcg/mL}
The final requested unit is in micrograms, so the concentration must be converted appropriately.
3
Calculate the total dose delivered per hour.
15 mL/hr×200 mcg/mL=3,000 mcg/hr15 \text{ mL/hr} \times 200 \text{ mcg/mL} = 3,000 \text{ mcg/hr}
Multiplying the pump rate by the concentration yields the total hourly dose.
4
Calculate the total dose delivered per minute.
3,000 mcg/hr÷60 min/hr=50 mcg/min3,000 \text{ mcg/hr} \div 60 \text{ min/hr} = 50 \text{ mcg/min}
The final requested unit is per minute, requiring conversion from the hourly dose.
5
Calculate the weight-based dose.
50 mcg/min÷80 kg=0.625 mcg/kg/min50 \text{ mcg/min} \div 80 \text{ kg} = 0.625 \text{ mcg/kg/min}
Dividing the total minute dose by the client's weight provides the exact dose being administered.
6
Round the calculated dose to the nearest hundredth.
0.630.63
The question specifies rounding to two decimal places (the nearest hundredth).

Anahtar Kavram

Weight-based reverse dosage calculation for continuous intravenous infusions.
Soru 1723Soru →

A nurse is caring for a client with a history of heart failure who suddenly develops severe dyspnea, becomes extremely restless, and expectorates pink, frothy sputum. Arrange the following nursing actions in the correct sequence of priority from first to last.

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Cevap

The correct priority sequence is to elevate the head of the bed first, apply high-flow oxygen second, administer the intravenous diuretic third, and insert the urinary catheter last.
In the setting of acute pulmonary edema, the client is experiencing acute respiratory distress due to fluid shifting rapidly into the alveoli. According to airway-breathing-circulation (ABC) prioritization, the most immediate action that can be taken without waiting for equipment is to elevate the head of the bed. This decreases venous return (preload) and allows the lungs to expand fully. Next, high-flow oxygen must be applied to directly treat the resulting severe hypoxia. Once the client's respiratory status is immediately supported, the nurse should administer the prescribed intravenous loop diuretic to eliminate the excess fluid causing the edema. Finally, inserting an indwelling urinary catheter allows for accurate measurement of the profound diuresis that will follow the diuretic administration, enabling precise evaluation of the treatment's effectiveness.

Adım Adım Çözüm

1
Elevate the head of the bed to a high Fowler's position.
Decreased venous return and increased thoracic expansion.
This is an immediate physical intervention requiring no equipment that rapidly improves respiratory mechanics.
2
Apply high-flow oxygen via a non-rebreather mask.
Increased alveolar oxygen concentration.
Hypoxia must be treated immediately after physically optimizing the airway and chest expansion.
3
Administer the prescribed intravenous loop diuretic.
Initiation of rapid fluid mobilization and diuresis.
Medications to reduce fluid overload and cardiac preload are administered after initial respiratory stabilization.
4
Insert a prescribed indwelling urinary catheter.
Accurate output monitoring system established.
Strict measurement of urinary output is essential to evaluate the therapeutic effectiveness of the diuretic.

Anahtar Kavram

Prioritization in Acute Pulmonary Edema
Soru 1724Soru →

An adult client in the intensive care unit is undergoing a spontaneous breathing trial (SBT) via continuous positive airway pressure (CPAP) to evaluate readiness for extubation. After 30 minutes, the client becomes severely restless, diaphoretic, and exhibits increased accessory muscle use. Arterial blood gas (ABG) analysis reveals a pH of 7.297.29, a PaCO 2_2 of 5656 mm Hg, a PaO 2_2 of 6464 mm Hg, and an HCO 3−_3^- of 2525 mEq/L. Which action is the priority for the nurse to take?

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Cevap: Terminate the weaning trial, resume full mechanical ventilatory support, and notify the healthcare provider.

Cevap

Terminate the weaning trial, resume full mechanical ventilatory support, and notify the healthcare provider.
The correct answer addresses both the clinical presentation (restlessness, accessory muscle use) and the diagnostic data (uncompensated respiratory acidosis and hypoxemia). These findings confirm that the client is failing the spontaneous breathing trial and cannot maintain adequate ventilation independently. Reconnecting the client to the mechanical ventilator is the essential action to reduce the risk of impending respiratory arrest.

Adım Adım Çözüm

1
Analyze the arterial blood gas (ABG) results.
The ABG shows uncompensated respiratory acidosis (pH 7.297.29, elevated PaCO 2_2 5656 mm Hg, normal HCO 3−_3^- 2525 mEq/L) accompanied by hypoxemia (PaO 2_2 6464 mm Hg).
Identifying the acid-base imbalance determines the physiological state of the client's respiratory function.
2
Evaluate the clinical manifestations.
Restlessness, diaphoresis, and accessory muscle use are critical indicators of hypoxia, hypercapnia, and severe muscle fatigue.
Correlating lab data with physical assessment confirms that the client is failing the spontaneous breathing trial.
3
Determine the priority risk reduction intervention.
The nurse must immediately halt the trial and provide full ventilatory support.
Delaying mechanical support or masking symptoms with sedatives can lead to total respiratory arrest.

Anahtar Kavram

Identifying signs of weaning failure and applying appropriate interventions to reduce the risk of respiratory arrest.
Soru 1725Soru →

A clinical nurse is preparing to obtain a blood specimen from an adult client's central venous access device (CVAD). To reduce the risk of central line-associated bloodstream infection (CLABSI), inaccurate laboratory results, and catheter occlusion, place the following actions in the correct chronological order.

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Cevap

The correct sequence for obtaining a blood specimen from a central line is: suspend continuous infusions, scrub the connector hub, flush and withdraw the discard volume, collect the blood specimen, and perform a final flush of the catheter.
The correct sequence prioritizes patient safety and sample integrity. First, continuous infusions must be suspended to prevent altering the laboratory results. Next, the needleless connector must be scrubbed and allowed to dry to prevent introducing pathogens (central line-associated bloodstream infection). After disinfection, the nurse flushes the line to assess patency and withdraws a discard volume to clear the catheter of any residual fluid or medication. A new, sterile device is then attached to collect the uncontaminated diagnostic specimen. Finally, the catheter must be flushed using a pulsatile technique to clear all red blood cells and prevent catheter occlusion.

Adım Adım Çözüm

1
Suspend any continuous intravenous infusions running through the central venous access device.
Infusions are halted prior to accessing the line.
Prevents contamination of the blood sample with infused medications or fluids, reducing the risk of inaccurate laboratory results and inappropriate medical interventions.
2
Scrub the needleless connector hub with an appropriate antiseptic swab and allow it to dry completely.
The access point is disinfected.
Eliminates surface pathogens on the hub, reducing the risk of central line-associated bloodstream infection (CLABSI) during access.
3
Attach an empty syringe, flush the catheter with 0.9% sodium chloride, and withdraw the designated discard volume.
Patency is confirmed and the line is cleared of residual fluid.
Flushing confirms the line is patent. Withdrawing a discard volume (typically 3-5 mL) removes residual flush solution and medications from the catheter space.
4
Connect a new sterile syringe or vacutainer to collect the required blood specimen for laboratory analysis.
The diagnostic sample is safely collected.
A clean syringe or collection device is used to ensure the sample sent to the laboratory is pure and uncontaminated by the discard volume.
5
Flush the catheter lumen with 0.9% sodium chloride using a pulsatile technique.
The catheter is cleared of blood.
A pulsatile (push-pause) flush creates turbulence, effectively clearing red blood cells from the catheter walls and reducing the risk of thrombosis or occlusion.

Anahtar Kavram

The correct sequence for drawing blood from a central venous access device prioritizes infection control, sample accuracy, and the prevention of catheter occlusion.
Soru 1726Soru →

A nurse is assuming care for a client who just arrived on the medical-surgical unit following a percutaneous liver biopsy. To mitigate the risk of the most significant post-procedural complication, which specific intervention must the nurse execute?

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Cevap: Position the client in a right lateral decubitus position with a small towel placed beneath the puncture site.

Cevap

The nurse must position the client in a right lateral decubitus position with a small towel placed beneath the puncture site.
The correct answer emphasizes that the liver is a highly vascular organ, making hemorrhage the most significant immediate risk following a percutaneous biopsy. Positioning the client on their right side (right lateral decubitus) with a towel or small pillow under the costal margin applies direct, continuous pressure to the puncture site. This tamponade effect is a critical, non-pharmacological intervention to promote hemostasis and reduce the risk of severe internal bleeding.

Adım Adım Çözüm

1
Identify the specific procedure the client has undergone and its primary physiological risk.
The client had a percutaneous liver biopsy. The liver is highly vascular, making post-procedure hemorrhage the most critical immediate complication.
Understanding the anatomy and the nature of the invasive procedure dictates the immediate post-operative nursing priorities.
2
Determine the physiological mechanism required to prevent this specific complication.
Hemostasis must be achieved at the puncture site through the continuous application of direct pressure (tamponade).
External pressure compresses the liver capsule against the chest wall, facilitating clot formation and preventing continuous bleeding into the peritoneum.
3
Select the nursing intervention that best achieves this physiological requirement.
Placing the client in a right lateral (side-lying) position utilizes the client's own body weight against the bed to apply the necessary direct pressure.
This specific positioning strategy directly addresses and mitigates the highest-priority risk for this procedure.

Anahtar Kavram

Post-procedure client positioning to prevent hemorrhage following a liver biopsy.
Tahmini Süre:1m 0s
Soru 1727Soru →

A client is transferred to the medical-surgical unit following a diagnostic lumbar puncture to evaluate a sudden onset of severe headaches and nuchal rigidity. Which nursing interventions are essential to incorporate into the client's immediate care plan to mitigate the risk of post-procedure complications? Select all that apply.

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Cevap: Maintain the client in a flat, supine position for the duration prescribed by the healthcare provider.; Encourage liberal oral fluid intake unless clinically contraindicated.; Assess the lower back insertion site dressing frequently for clear moisture or active bleeding.

Cevap

The essential nursing interventions include maintaining a flat, supine position, encouraging liberal fluid intake, and closely monitoring the insertion site dressing for moisture or bleeding.
Following a lumbar puncture, the primary goals are to prevent cerebrospinal fluid (CSF) leakage and monitor for neurological complications. Maintaining a flat position and increasing hydration help maintain CSF volume and intracranial pressure, preventing spinal headaches. Direct observation of the puncture site allows for early detection of complications such as hematomas or ongoing CSF leaks.

Adım Adım Çözüm

1
Analyze the procedure and potential physiological risks.
The client underwent a lumbar puncture, which carries risks of cerebrospinal fluid (CSF) leakage, spinal headache, hematoma, and neurological deficits.
Understanding the procedural risks guides the selection of appropriate preventive and monitoring interventions.
2
Evaluate the safety and therapeutic rationale of each proposed intervention.
Maintaining a flat position, encouraging hydration, and monitoring the site directly reduce the risk of CSF leak and identify complications early. The other actions represent errors in positioning, delegation, and prioritization.
Interventions must align with established standards for post-lumbar puncture care and nursing scope of practice.

Anahtar Kavram

Post-Lumbar Puncture Risk Reduction and Complication Management
Soru 1728Soru →

A nurse is caring for a client who is receiving total parenteral nutrition (TPN) via a multi-lumen central venous catheter. Which of the following interventions should the nurse implement? (Select all that apply.)

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Cevap: Change the TPN administration set and filter every 24 hours.; Monitor capillary blood glucose levels every 4 to 6 hours.; Hang a bag of 10% dextrose in water (D10W) if the TPN solution runs out and a replacement is delayed.

Cevap

The correct interventions are to change the administration set and filter every 24 hours, monitor capillary blood glucose every 4 to 6 hours, and hang 10% dextrose in water if the TPN is abruptly delayed.
Total parenteral nutrition (TPN) requires meticulous nursing care to prevent complications. Because the solution is an excellent medium for bacterial growth, the tubing and filter must be replaced every 24 hours. The high dextrose concentration requires routine blood glucose checks (usually every 4-6 hours) to monitor for hyperglycemia. Furthermore, if the TPN infusion is suddenly interrupted, the client's high endogenous insulin levels can cause severe rebound hypoglycemia, which is prevented by substituting a 10% dextrose in water (D10W) solution at the same flow rate.

Adım Adım Çözüm

1
Analyze the client's current therapy and access device.
The client is receiving TPN, a highly concentrated, hypertonic intravenous solution, via a central venous catheter.
Understanding the characteristics of TPN highlights the critical risks: infection, metabolic imbalances (hyper/hypoglycemia), and fluid shifts.
2
Evaluate each intervention for adherence to parenteral therapy safety standards.
Changing the tubing every 24 hours, monitoring glucose, and keeping D10W available all mitigate specific TPN-related risks. Mixing medications and altering the infusion rate violate safety protocols.
Applying standard protocols for IV compatibility and metabolic monitoring ensures safe parenteral administration.

Anahtar Kavram

Safe Administration of Total Parenteral Nutrition (TPN)
Soru 1729Soru →

An adult client arrives at the emergency department presenting with profound lethargy, deep and rapid Kussmaul respirations, and a fruity breath odor. Laboratory results reveal a blood glucose of 680 mg/dL (37.7 mmol/L), a serum pH of 7.15, and positive serum ketones. Arrange the following collaborative interventions in the correct sequence of priority.

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Cevap

The correct sequence prioritizes hemodynamic stability and safety: administer intravenous fluids first, check the potassium level second, start the continuous regular insulin infusion third, add dextrose to the fluids when glucose falls below 250 mg/dL fourth, and transition to subcutaneous insulin fifth.
The established protocol for severe metabolic decompensation prioritizes ABCs and hemodynamics. Dehydration from osmotic diuresis requires immediate 0.9% sodium chloride to restore vascular volume. Next, potassium must be evaluated because insulin drives potassium into cells, risking life-threatening hypokalemia. Only after volume and electrolytes are secured is regular insulin infused to correct the acidosis. Dextrose is later added when glucose drops below 250 mg/dL to prevent hypoglycemia while waiting for ketones to clear. Finally, a subcutaneous insulin dose provides overlapping coverage before the intravenous drip is stopped.

Adım Adım Çözüm

1
Initiate fluid resuscitation with 0.9% sodium chloride.
Intravascular volume is restored.
Hyperglycemia causes osmotic diuresis leading to severe dehydration. Perfusion must be restored before giving insulin to prevent circulatory collapse.
2
Check the serum potassium level.
Baseline potassium is established.
Insulin drives potassium back into the cells. If the client is already hypokalemic, giving insulin immediately can cause fatal cardiac arrhythmias.
3
Begin the regular insulin infusion.
Ketogenesis is halted and acidosis begins to correct.
Continuous intravenous insulin is the definitive treatment to suppress lipolysis and resolve the metabolic acidosis.
4
Add 5% dextrose to the IV fluids.
Hypoglycemia is prevented.
Blood glucose usually normalizes before the acidosis is fully resolved. Adding dextrose allows the insulin infusion to continue safely until the anion gap closes.
5
Administer subcutaneous insulin.
A transition to maintenance therapy is established.
Subcutaneous insulin must be initiated before turning off the IV insulin drip to ensure continuous basal coverage and prevent a relapse into ketoacidosis.

Anahtar Kavram

The acute management of diabetic ketoacidosis (DKA) strictly prioritizes fluid resuscitation followed by electrolyte evaluation before the administration of insulin.
Tahmini Süre:1m 30s
Soru 1730Soru →

A nurse is assessing a client who is 4 days postoperative following an exploratory laparotomy. The client reports feeling a sudden "tearing" sensation in the abdomen after coughing forcefully. Upon inspection, the nurse observes that the surgical incision has separated and loops of bowel are protruding. Place the following nursing interventions in the correct order of priority.

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Cevap

The correct priority sequence is: 1) Call for immediate assistance, 2) Position the client in low Fowler's with flexed knees, 3) Cover the organs with sterile saline-moistened dressings, 4) Assess vital signs, and 5) Prepare the client for emergency surgery.
The correct priority addresses immediate safety first, followed by tension reduction, tissue preservation, systemic assessment, and definitive treatment. Calling for assistance ensures help arrives while the nurse remains with the client. Positioning the client with knees flexed immediately reduces abdominal tension. Covering the organs prevents tissue necrosis. Assessing vital signs evaluates for shock, and preparing for surgery anticipates the necessary medical intervention.

Adım Adım Çözüm

1
Call for immediate assistance and instruct responding staff to notify the surgeon.
The primary nurse secures help and initiates the medical response while remaining at the client's bedside.
Leaving the client increases the risk of further injury and severe anxiety. Help is required to gather supplies.
2
Position the client in a low Fowler's position with the knees flexed.
Intra-abdominal pressure decreases, and tension on the suture line is relieved.
This is the most critical immediate physical intervention to prevent further protrusion of the abdominal contents.
3
Cover the protruding bowel with sterile dressings moistened with sterile 0.9% sodium chloride.
The exposed bowel is protected from the external environment.
Sterile, moist dressings prevent the bowel tissue from drying out, protecting it from irreversible ischemia.
4
Assess the client's vital signs to monitor for indications of shock.
A baseline assessment of the client's hemodynamic status is obtained.
The client is at extreme risk for shock due to fluid shifts and severe physical stress.
5
Prepare the client for emergency surgical intervention.
The client is readied for definitive medical treatment.
Wound evisceration is a surgical emergency requiring operative repair.

Anahtar Kavram

Management of Wound Evisceration
Soru 1731Soru →

A 68-year-old client with a history of severe chronic obstructive pulmonary disease (COPD) and a recent tracheostomy requires open airway suctioning. The client exhibits audible coarse crackles, restlessness, and an oxygen saturation drop to 88%. To mitigate the risk of physiological decompensation during the procedure, arrange the following nursing actions in the correct chronological sequence from first to last.

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Cevap

The correct sequence for open airway suctioning prioritizes equipment safety, physiological preparation, atraumatic insertion, limited active suctioning, and post-procedure evaluation: First, verify the wall suction pressure; second, hyperoxygenate the client; third, advance the catheter without suction; fourth, apply intermittent suction during withdrawal; and fifth, flush the catheter and reassess.
The physiological priority during open tracheostomy suctioning is maintaining oxygenation and preventing tissue trauma. The nurse must first ensure equipment safety by checking the suction pressure (80 to 120 mm Hg). Next, hyperoxygenation is crucial to build up oxygen reserves. The catheter is then advanced without suction to avoid depleting oxygen or damaging the airway during entry. Once inserted to the proper depth, intermittent suction is applied only during withdrawal to clear secretions safely. Finally, clearing the line with sterile saline and reassessing the client ensures the procedure was effective and the client has stabilized.

Adım Adım Çözüm

1
Verify the wall suction pressure is set between 80 and 120 mm Hg.
Safe negative pressure limits are established before the procedure begins.
Excessive suction pressure can cause significant trauma to the tracheal mucosa and induce bleeding, while insufficient pressure will not clear thick secretions.
2
Hyperoxygenate the client with 100% oxygen.
The client's functional residual capacity of oxygen is maximized.
Suctioning inevitably removes oxygen from the airway along with secretions. Pre-oxygenating prevents severe procedure-induced hypoxemia and resulting dysrhythmias.
3
Advance the catheter into the tracheostomy tube without applying suction.
The catheter is placed safely down to the level of the carina.
Applying active suction during insertion strips oxygen from the airway unnecessarily and significantly increases the risk of the catheter adhering to and tearing the mucosal wall.
4
Apply intermittent suction while rotating and withdrawing the catheter.
Secretions are effectively cleared from the airway.
Rotating the catheter cleans all surfaces of the airway, and limiting active suction to the withdrawal phase for no more than 10 to 15 seconds minimizes hypoxia and tissue damage.
5
Flush the catheter with sterile saline and reassess the client's respiratory status.
The tubing is cleared of thick mucus, and the efficacy of the intervention is thoroughly evaluated.
Flushing prevents catheter occlusion for subsequent passes. Reassessing lung sounds and oxygen saturation determines if further suctioning is required or if the client has returned to baseline.

Anahtar Kavram

Safe sequence for open tracheostomy suctioning to reduce the risk of hypoxia and mucosal trauma.
Tahmini Süre:1m 30s
Soru 1732Soru →

An older adult patient is recovering in the surgical unit one day after receiving a left total hip arthroplasty via a posterior approach. When providing basic care and comfort measures, which action by the registered nurse demonstrates safe practice?

Cevabı ve açıklamayı göster

Cevap: Placing an abduction wedge between the patient's legs when turning them to the unaffected side

Cevap

Placing an abduction wedge between the patient's legs when turning them to the unaffected side
Following a posterior approach total hip arthroplasty, the hip must remain in an abducted position to prevent dislocation of the new prosthesis. An abduction wedge or pillow placed between the legs maintains this required alignment, especially when the patient is being repositioned or turned in bed.

Adım Adım Çözüm

1
Analyze the patient's surgical procedure and postoperative requirements.
The patient had a posterior total hip arthroplasty, which requires specific positional precautions to prevent joint dislocation.
Understanding the anatomical risks of the specific surgical approach dictates safe positioning.
2
Evaluate each nursing action against posterior hip precautions and general safety standards.
Hip flexion must remain less than 90 degrees, and the surgical leg must remain abducted. Furthermore, assessments cannot be delegated, and sudden confusion is pathological.
Identifying contraindicated actions eliminates unsafe distractors.
3
Select the intervention that correctly aligns with physiological integrity and basic care principles.
Using an abduction wedge during turns is the only safe and appropriate action.
This directly applies the principle of maintaining proper anatomical alignment to prevent surgical complications.

Anahtar Kavram

Postoperative positioning and basic care following total hip arthroplasty
Soru 1733Soru →

A nurse is caring for a hemodynamically unstable client with septic shock. The client is receiving a continuous intravenous (IV) infusion of norepinephrine through a single 20-gauge peripheral IV line to maintain a mean arterial pressure (MAP) greater than 65 mm Hg. The healthcare provider prescribes a stat dose of intravenous piperacillin-tazobactam. Which action by the nurse is the most appropriate?

Cevabı ve açıklamayı göster

Cevap: Insert a second peripheral intravenous line to administer the prescribed antibiotic.

Cevap

Insert a second peripheral intravenous line to administer the prescribed antibiotic.
The correct action involves establishing a separate intravenous line. Norepinephrine is a critical, high-alert vasoactive medication that must be infused continuously at a precisely titrated rate to maintain the client's blood pressure. Administering another medication through the same line—either by piggybacking or pausing the infusion—alters the delivery rate of the vasopressor. This can cause a sudden, dangerous bolus of the drug to reach the patient or result in a life-threatening drop in blood pressure. Therefore, a dedicated line is absolutely required.

Adım Adım Çözüm

1
Analyze the client's physiological status and current therapies.
The client is in septic shock and is dependent on a continuous vasopressor (norepinephrine) to maintain basic organ perfusion.
To identify contraindications for altering the current intravenous therapy setup.
2
Evaluate the proposed intervention against safety protocols.
The stat antibiotic needs to be administered immediately, but it cannot interrupt or alter the flow rate of the continuous vasopressor.
To determine the safest route of administration without compromising hemodynamic stability.
3
Select the most appropriate nursing action.
Establishing a new, separate peripheral IV line is required.
To ensure both the life-sustaining vasopressor and the critical antibiotic are delivered safely without interfering with each other's flow rates.

Anahtar Kavram

Safe administration of parenteral therapies requires a dedicated intravenous line for titrated vasoactive continuous infusions to prevent dangerous hemodynamic fluctuations.
Soru 1734Soru →

During the immediate postoperative period following a subtotal thyroidectomy, a client reports a sudden sensation of tightness in the anterior neck region and exhibits frequent, forced swallowing. The respiratory rate is currently 26 breaths/minute with faint inspiratory stridor. To mitigate the highest immediate risk to the client, which action must the nurse execute first?

Cevabı ve açıklamayı göster

Cevap: Alert the rapid response team and prepare the emergency tracheostomy equipment at the bedside.

Cevap

The nurse must immediately alert the rapid response team and prepare emergency tracheostomy equipment to secure the airway.
The client is exhibiting classic signs of an expanding hematoma and airway compression (frequent swallowing, neck tightness, stridor, and tachypnea). This is a surgical emergency. The immediate priority is to alert the rapid response team and prepare for advanced airway management before complete airway occlusion occurs.

Adım Adım Çözüm

1
Analyze the clinical presentation.
The client has neck tightness, frequent swallowing, tachypnea, and inspiratory stridor.
These are classic signs of an expanding hematoma or hemorrhage in the neck following a thyroidectomy.
2
Evaluate the physiological impact.
The hematoma is physically compressing the trachea, leading to a compromised airway.
Airway patency is the highest priority in the ABC (Airway, Breathing, Circulation) framework.
3
Determine the priority intervention.
Immediate medical intervention is required to secure the airway before complete occlusion occurs.
Nursing interventions like repositioning or diagnostics are insufficient and will critically delay life-saving airway management.

Anahtar Kavram

Post-thyroidectomy airway obstruction secondary to hematoma formation requires immediate emergency intervention.
Soru 1735Soru →

A nurse is reviewing the plan of care for a client diagnosed with myxedema coma. The client presents with a core body temperature of 34.2∘C34.2^\circ\text{C} (93.6∘F93.6^\circ\text{F}), a blood pressure of 86/52 mm Hg86/52\text{ mm Hg}, and a serum sodium level of 122 mEq/L122\text{ mEq/L}. Arterial blood gas results indicate uncompensated respiratory acidosis. Which of the following prescribed interventions should the nurse question?

Cevabı ve açıklamayı göster

Cevap: Applying a forced-air active warming system to rapidly raise core body temperature

Cevap

The nurse should question the application of a forced-air active warming system, as rapid active rewarming is contraindicated.
The intervention involving a forced-air active warming system must be questioned. In myxedema coma, the cardiovascular system is severely compromised and the client is hypotensive. Active, rapid rewarming forces peripheral vasodilation, which shunts the already limited blood volume away from vital internal organs to the skin. This can precipitate immediate and fatal cardiovascular collapse (shock). Instead, passive rewarming (e.g., using standard warm blankets in a warm room) should be implemented to allow the body temperature to rise gradually as thyroid hormone is replaced.

Adım Adım Çözüm

1
Analyze the client's clinical presentation.
The client exhibits signs of myxedema coma including hypothermia, hypotension, severe hyponatremia, and respiratory acidosis.
Establishing the baseline physiological state is necessary to evaluate the safety of prescribed interventions.
2
Evaluate the physiological impact of active rewarming on a compromised cardiovascular system.
Active external rewarming forces peripheral blood vessels to rapidly dilate.
Understanding the physiological response to heat application is critical in shock-like states.
3
Determine the consequence of this vasodilation on the client's current blood pressure.
In a client who is already hypotensive (86/52 mm Hg86/52\text{ mm Hg}), sudden vasodilation will cause a further drop in blood pressure and potentially fatal cardiovascular collapse.
This identifies the intervention as immediately dangerous and requiring clarification with the provider.

Anahtar Kavram

In myxedema coma, active external rewarming is contraindicated because it induces rapid peripheral vasodilation, which can precipitate cardiovascular collapse in an already hypotensive client. Passive rewarming is the standard of care.
Soru 1736Soru →

While caring for a client with a history of hepatic cirrhosis on the hepatology unit, the nurse observes the client suddenly vomit a copious amount of bright red blood. The client is lethargic, with a heart rate of 142 beats per minute and a blood pressure of 76/42 mm Hg. In what order should the nurse implement the following interventions? Place the actions in sequence from first to last.

Öğeleri doğru sıraya koymak için sürükleyin

Cevabı ve açıklamayı göster

Cevap

The correct sequence prioritizes immediate airway protection, followed by oxygenation, establishing vascular access, initiating fluid resuscitation, and finally administering targeted pharmacological therapy.
In any life-threatening emergency, the nurse must strictly adhere to the Airway, Breathing, and Circulation (ABC) prioritization framework. For a client actively vomiting blood with a lethargic level of consciousness, positional airway protection is the immediate first step to prevent fatal aspiration. This is followed immediately by oxygenation to treat hypoxia. Only after the airway and breathing are secured should the nurse address circulation by establishing large-bore intravenous access and administering fluids to combat hypovolemic shock. Pharmacological interventions specifically targeting the pathology, such as octreotide for varices, are initiated only after the foundational ABCs are completely stabilized.

Adım Adım Çözüm

1
Turn the client into a lateral decubitus position.
The airway is mechanically protected.
Active hematemesis in a lethargic client presents an immediate risk of aspiration and asphyxiation, making physical airway protection the most critical independent action.
2
Provide supplemental oxygen via a non-rebreather mask.
Tissue oxygenation is maximized.
Hemorrhagic shock and potential airway compromise necessitate high-flow oxygen to maintain cellular perfusion and hemoglobin saturation.
3
Insert two 18-gauge peripheral intravenous catheters.
Reliable vascular access is secured.
Aggressive fluid and blood product resuscitation is imminent for this hemodynamically unstable client, requiring adequate large-bore access.
4
Initiate a rapid infusion of 0.9% sodium chloride.
Intravascular volume is expanded.
Rapid infusion of isotonic crystalloids treats the hypovolemia and improves the client's critically low blood pressure.
5
Begin a continuous intravenous infusion of octreotide.
Variceal bleeding is therapeutically reduced.
After the fundamental ABCs (Airway, Breathing, Circulation) are stabilized, a splanchnic vasoconstrictor is administered to address the specific source of hemorrhage.

Anahtar Kavram

Prioritization of acute variceal hemorrhage management strictly follows the Airway, Breathing, Circulation (ABC) framework.
Tahmini Süre:1m 30s
Soru 1737Soru →

A nurse is preparing to administer a prescribed dose of intravenous phenytoin by direct injection (IV push). The client has a single peripheral intravenous catheter currently infusing 5% dextrose in water (D5W) continuously. Knowing that phenytoin is incompatible with dextrose solutions, arrange the following nursing actions in the correct sequence to safely administer the medication.

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Cevabı ve açıklamayı göster

Cevap

The correct sequence is to first stop the incompatible dextrose infusion, flush the line with normal saline, administer the phenytoin slowly, flush the line again with normal saline at the same slow rate, and finally resume the dextrose infusion.
When administering an intravenous push medication through a line infusing an incompatible solution, the nurse must ensure the two fluids never mix in the tubing. The strict sequence must be: stop the incompatible fluid, flush with a compatible fluid (0.9% sodium chloride) to clear the line, administer the medication, flush again with the compatible fluid to clear the medication from the line, and finally restart the continuous infusion. Crucially, the post-medication flush must be administered at the same slow rate as the medication to avoid inadvertently pushing a bolus of the medication remaining in the tubing into the client's circulation.

Adım Adım Çözüm

1
Pause the continuous infusion of D5W.
The flow of the incompatible fluid is stopped.
Prevents the mixing of phenytoin and dextrose in the IV tubing, which would cause immediate crystallization.
2
Flush the IV line with 0.9% sodium chloride.
The IV tubing is cleared of dextrose.
Normal saline is compatible with phenytoin and creates a safe, clear environment in the tubing for the medication to pass through.
3
Administer the IV push phenytoin slowly.
The medication is delivered safely into the bloodstream.
Slow administration (maximum 50 mg/min) prevents severe hypotension and cardiac arrhythmias associated with rapid phenytoin delivery.
4
Flush the line again with 0.9% sodium chloride at the same slow rate.
Phenytoin is completely cleared from the tubing dead space.
Ensures the entire dose reaches the patient and prevents precipitation when D5W is resumed. Flushing slowly prevents the remaining drug from being delivered as a rapid bolus.
5
Restart the D5W infusion.
Continuous intravenous fluids are resumed.
Maintains the client's prescribed hydration and glucose support after the medication has been safely delivered.

Anahtar Kavram

Safe administration of intravenous medications via a line with an incompatible continuous infusion requires the 'flush-administer-flush' technique using a compatible solution to prevent drug precipitation.

Alternatif Yöntem

If the client requires uninterrupted dextrose infusion (e.g., for severe hypoglycemia), the nurse should establish a second peripheral intravenous site specifically for the phenytoin administration rather than interrupting the primary line.
Tahmini Süre:2m 0s
Soru 1738Soru →

A client admitted with acute decompensated heart failure is receiving a continuous intravenous infusion of dobutamine for inotropic support. During the shift, the client suddenly exhibits severe dyspnea, a respiratory rate of 34 breaths per minute, and bilateral coarse crackles on auscultation. The provider verbally orders 40 mg of furosemide to be administered via direct intravenous injection immediately. The client currently has only one functioning 20-gauge peripheral venous catheter. Which action is the priority for the registered nurse to safely administer this medication?

Cevabı ve açıklamayı göster

Cevap: Establish an additional peripheral vascular access site to administer the diuretic independently.

Cevap

The nurse must establish an additional peripheral vascular access site to administer the furosemide independently.
The correct action is to establish a new vascular access site. Furosemide is chemically incompatible with dobutamine and will precipitate if mixed in the same tubing. Additionally, dobutamine is a critical vasoactive medication providing essential inotropic support for a client in acute decompensated heart failure. Pausing the dobutamine infusion to flush the line and administer the furosemide could cause a rapid, life-threatening deterioration in the client's cardiac output and blood pressure. Therefore, obtaining separate access is the only safe method to deliver the stat medication without compromising the client's circulatory status.

Adım Adım Çözüm

1
Analyze the client's clinical status and the current intravenous setup.
The client is hemodynamically dependent on a continuous dobutamine infusion and has only one peripheral access site.
Understanding the client's dependence on the continuous medication dictates whether the line can be safely interrupted.
2
Evaluate the chemical compatibility of the prescribed intravenous push medication with the primary continuous infusion.
Furosemide and dobutamine are identified as physically and chemically incompatible.
Administering incompatible medications through the same line can cause precipitation, emboli, and altered drug efficacy.
3
Determine the safest administration route considering compatibility and prioritization.
Since the drugs are incompatible and the dobutamine cannot be safely paused, a new intravenous access site must be established.
This approach ensures the stat diuretic is given promptly without interrupting critical inotropic support or causing a hazardous drug interaction.

Anahtar Kavram

Intravenous medication compatibility and the management of continuous vasoactive infusions.
Soru 1739Soru →

A home health nurse is developing a plan of care for an older adult client with severe rheumatoid arthritis who experiences chronic joint pain and morning stiffness. Which of the following interventions should the nurse include in the plan of care to promote basic care and comfort? Select all that apply.

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: Advise the client to take a warm shower or apply moist heat packs immediately upon waking.; Encourage the client to carry bags or objects using the forearms rather than grasping them with the fingers.; Recommend the use of a high-backed chair with firm armrests to provide support and facilitate safe standing.

Cevap

The correct interventions are advising a warm shower upon waking, using the forearms to carry objects, and utilizing a high-backed chair with firm armrests.
Effective basic care and comfort for a client with rheumatoid arthritis includes measures that reduce pain, preserve joint function, and promote safe mobility. Heat therapy, such as a warm shower, relaxes muscles and relieves morning stiffness. Joint protection principles emphasize using larger, stronger joints (like the forearms) instead of smaller, easily deformed joints (like the fingers) to perform tasks. Additionally, utilizing chairs with high backs and firm armrests provides essential postural support and allows the client to push off safely when standing, minimizing stress on the hips and knees.

Adım Adım Çözüm

1
Analyze the client's clinical presentation and care needs.
The client is an older adult with severe rheumatoid arthritis suffering from chronic joint pain and morning stiffness.
Understanding the specific pathology and symptoms directs the selection of appropriate non-pharmacological comfort measures.
2
Evaluate the proposed joint protection and comfort interventions.
Applying heat, using larger joints for carrying, and utilizing supportive seating (high-backed chair with armrests) are correctly identified as safe and effective strategies.
These measures actively reduce stiffness, prevent joint deformity, and minimize mechanical stress.
3
Identify contraindicated actions and improper nursing practices among the options.
Placing a pillow under the knees, delegating assessments to UAPs, and dismissing acute confusion as normal aging are identified as incorrect and unsafe practices.
Pillows under knees cause contractures, UAPs cannot perform clinical assessments, and sudden confusion indicates a serious acute pathology.

Anahtar Kavram

Non-pharmacological comfort and joint protection in rheumatoid arthritis
Tahmini Süre:2m 0s
Soru 1740Soru →

A nurse in the intensive care unit is caring for a client with a hypertensive emergency. The client weighs 198 lb198\text{ lb}. The client is currently receiving a continuous intravenous (IV) infusion of nitroprusside at 14 mL/hr14\text{ mL/hr}. The IV solution contains 50 mg50\text{ mg} of nitroprusside in 250 mL250\text{ mL} of 5%5\% dextrose in water (D5WD_5W). Based on the client's current blood pressure of 185/110 mm Hg185/110\text{ mm Hg}, the healthcare provider prescribes an increase in the nitroprusside infusion rate by 0.5 mcg/kg/min0.5\text{ mcg/kg/min}. What is the new infusion rate in mL/hr\text{mL/hr} that the nurse should set on the IV pump? Record your answer using one decimal place.

Cevabı ve açıklamayı göster

Cevap: 27.5

Cevap

27.5
To determine the new infusion rate, calculate the volume required for the prescribed increase and add it to the current baseline rate. First, convert the weight: 198 lb÷2.2=90 kg198\text{ lb} \div 2.2 = 90\text{ kg}. Calculate the increase per minute: 0.5 mcg/kg/min×90 kg=45 mcg/min0.5\text{ mcg/kg/min} \times 90\text{ kg} = 45\text{ mcg/min}. Convert to an hourly dose: 45 mcg/min×60 min/hr=2700 mcg/hr45\text{ mcg/min} \times 60\text{ min/hr} = 2700\text{ mcg/hr}. Next, determine the concentration of the available solution: 50 mg=50,000 mcg50\text{ mg} = 50,000\text{ mcg}; 50,000 mcg÷250 mL=200 mcg/mL50,000\text{ mcg} \div 250\text{ mL} = 200\text{ mcg/mL}. Divide the hourly dose increase by the concentration: 2700 mcg/hr÷200 mcg/mL=13.5 mL/hr2700\text{ mcg/hr} \div 200\text{ mcg/mL} = 13.5\text{ mL/hr}. Finally, add this volume increase to the current rate: 14 mL/hr+13.5 mL/hr=27.5 mL/hr14\text{ mL/hr} + 13.5\text{ mL/hr} = 27.5\text{ mL/hr}.

Adım Adım Çözüm

1
Convert the client's weight to kilograms.
90 kg
The prescribed dose increase is weight-based (mcg/kg/min), so weight must be in kg.
2
Calculate the total mcg/min required for the rate increase.
45 mcg/min
Multiplies the prescribed dose increase (0.5 mcg/kg/min) by the patient's weight (90 kg).
3
Convert the required dose increase from mcg/min to mcg/hr.
2700 mcg/hr
The IV infusion pump is programmed in mL/hr, so the dose must be standardized to an hourly rate.
4
Determine the concentration of the IV solution in mcg/mL.
200 mcg/mL
Converts 50 mg to 50,000 mcg, then divides by the total volume (250 mL) to find the amount of drug per mL.
5
Calculate the additional infusion rate (mL/hr) required for the increase.
13.5 mL/hr
Divides the required hourly dose increase (2700 mcg/hr) by the drug concentration (200 mcg/mL).
6
Calculate the new total infusion rate.
27.5 mL/hr
Adds the required increase (13.5 mL/hr) to the current continuous infusion rate (14 mL/hr).

Anahtar Kavram

Complex weight-based IV medication titration and dosage calculation
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Physiological Integrity Alıştırma Soruları — NCLEX-RN — Sayfa 87 | Examkin