Physiological Integrity

1960 soru

Soru 81Soru →

An orthopedic unit nurse is evaluating a client 36 hours after a closed reduction and intramedullary nailing of a right femoral shaft fracture. The client suddenly exhibits profound agitation, dyspnea, and a feeling of impending doom. Physical assessment reveals a petechial rash on the anterior chest, distended neck veins, and severe diaphoresis. Vital signs are: blood pressure 86/52 mm Hg, heart rate 134 bpm, respiratory rate 36/min, and SpO2 84% on room air. Arterial blood gas (ABG) analysis indicates a pH of 7.54, PaCO2 of 25 mm Hg, HCO3 of 22 mEq/L, and PaO2 of 52 mm Hg. Based on this clinical presentation, which action should the nurse perform immediately?

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Cevap: Apply high-flow oxygen via a non-rebreather mask and anticipate the need for mechanical ventilation.

Cevap

Apply high-flow oxygen via a non-rebreather mask and anticipate the need for mechanical ventilation.
The client is exhibiting the classic triad of fat embolism syndrome (FES): respiratory distress, neurological changes (agitation), and a petechial rash following a long-bone fracture. The severe hypoxemia (PaO2 52 mm Hg) and hemodynamic instability require immediate airway and breathing stabilization. High-flow oxygen is the absolute priority to address the profound hypoxia before proceeding with further diagnostics or secondary treatments.

Adım Adım Çözüm

1
Analyze the client's history and physical assessment findings.
The client has a recent long-bone fracture and presents with the classic triad of fat embolism syndrome (FES): neurological changes (agitation), respiratory distress, and a petechial rash.
Identifying the underlying pathology is crucial for anticipating complications and directing care.
2
Interpret the vital signs and arterial blood gas (ABG) values.
The client has severe hypoxemia (PaO2 52 mm Hg, SpO2 84%), hypotension, and uncompensated respiratory alkalosis (pH 7.54, PaCO2 25 mm Hg) caused by extreme hyperventilation.
Accurate interpretation determines the severity of the respiratory failure and hemodynamic compromise.
3
Evaluate the hemodynamic state using physical signs.
Distended neck veins combined with hypotension indicate right ventricular strain (obstructive shock) secondary to pulmonary vascular occlusion, ruling out hypovolemic shock.
Differentiating the type of shock prevents harmful interventions, such as inappropriate rapid fluid loading.
4
Apply prioritization principles (Airway, Breathing, Circulation).
The most immediate life-threatening issue is profound hypoxia; therefore, administering high-flow oxygen is the priority action over diagnostics or medication administration.
Basic life support principles dictate that oxygenation and ventilation must be secured before confirming the diagnosis or addressing other imbalances.

Anahtar Kavram

Fat Embolism Syndrome (FES) and Obstructive Shock Recognition
Soru 82Soru →

A nurse is preparing to administer an intravenous (IV) push medication through a Y-site port on a client's active continuous IV infusion line. Which of the following is the priority nursing action before proceeding with the administration?

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Cevap: Verify the compatibility of the IV push medication with the continuous infusion fluid.

Cevap

The priority action is to verify the compatibility of the IV push medication with the continuous infusion fluid.
Verifying compatibility is the absolute first step when preparing to administer an IV push medication into an existing continuous infusion. If medications are incompatible, they can form a precipitate, inactivate one another, or cause a severe adverse reaction. This safety check dictates whether the medication can be safely given through the existing line or if alternative access is required, meaning it must precede all physical procedural steps.

Adım Adım Çözüm

1
Identify the proposed route and existing therapies.
The client has a continuous IV infusion and requires an IV push medication via the Y-site.
Understanding the IV setup is necessary to identify potential medication interaction risks.
2
Recall the principles of safe intravenous medication administration.
Medications given in the same IV line can interact, causing precipitates or drug inactivation.
Chemical and physical incompatibilities pose a significant, immediate risk to patient safety.
3
Determine the priority sequence of actions.
Checking drug compatibility must occur before preparing the medication or interacting with the client's IV site.
If the medications are incompatible, a separate IV access may be required, making physical procedural steps on the current line irrelevant or dangerous.

Anahtar Kavram

Intravenous Medication Compatibility
Soru 83Soru →

A client diagnosed with severe sepsis has a double-lumen central venous catheter (CVC). The proximal lumen is dedicated to a continuous infusion of total parenteral nutrition (TPN). The distal lumen is delivering a continuous infusion of norepinephrine to maintain systemic vascular resistance. During the shift, the client's mean arterial pressure drops to 54 mm Hg54\text{ mm Hg}. The provider verbally prescribes an immediate 500 mL500\text{ mL} intravenous bolus of lactated Ringer's solution and 100 mg100\text{ mg} of hydrocortisone sodium succinate via intravenous push. Which action by the nurse demonstrates the safest administration of these prescribed therapies?

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Cevap: Establish a new peripheral intravenous catheter to administer the fluid bolus and the intravenous push medication.

Cevap

Establish a new peripheral intravenous catheter to administer the fluid bolus and the intravenous push medication.
The correct answer is to establish a new peripheral intravenous catheter. When managing a critically ill client with a multi-lumen central line, the nurse must adhere to strict parenteral safety rules regardless of the emergency. The proximal lumen is infusing total parenteral nutrition (TPN), which requires a strictly dedicated line; it must never be used for fluid boluses, blood products, or intravenous push medications due to the high risk of infection and chemical incompatibility. The distal lumen is infusing norepinephrine, a potent continuous vasopressor. Connecting a rapid fluid bolus to this line, or flushing the line to administer an intravenous push medication, will rapidly flush the residual norepinephrine residing in the intravenous tubing's dead space directly into the client's central circulation. This unintentional bolus can cause a lethal hypertensive crisis and fatal arrhythmias. Additionally, temporarily pausing the norepinephrine in a severely hypotensive client (MAP of 54 mm Hg) will cause immediate cardiovascular collapse. Therefore, the only safe action is to rapidly establish a new peripheral intravenous access site for the new prescriptions.

Adım Adım Çözüm

1
Evaluate the current utilization and safety constraints of the central venous catheter lumens.
One lumen is dedicated to TPN, and the other is infusing a life-sustaining concentrated vasopressor (norepinephrine).
Safe parenteral administration requires assessing existing access for compatibility, infection control protocols, and hemodynamic safety before administering new emergency therapies.
2
Analyze the clinical safety of using the proximal TPN lumen.
The TPN lumen is strictly rejected for any other uses.
TPN lumens must be exclusively dedicated to parenteral nutrition due to the high risk of central line-associated bloodstream infections (CLABSI) and complex chemical incompatibilities that cause precipitation.
3
Analyze the clinical safety of using the distal vasopressor lumen.
The norepinephrine lumen cannot be used for rapid boluses, nor can it be paused for an intravenous push.
Bolusing fluid or rapidly flushing a line containing a concentrated vasopressor will rapidly force the residual medication in the intravenous tubing (dead space) into the client, causing a potentially lethal spike in blood pressure. Pausing the infusion is also contraindicated as it will immediately worsen the severe hypotensive shock.
4
Determine the safest alternative route for the emergency prescriptions.
A new peripheral intravenous line must be established immediately.
Despite the critical nature of the emergency and the presence of a central line, utilizing inappropriate central lumens poses immediate life-threatening risks. A new access point is the only physiological and pharmacologically safe route.

Anahtar Kavram

Central line lumen dedication, vasopressor administration safety, and the prevention of unintended medication boluses (speed shock).
Soru 84Soru →

A registered nurse is planning care for a 78-year-old client who is 1 day post-operative following a right total hip arthroplasty (posterior approach). Which basic care and comfort interventions should the nurse include in the client's plan of care? Select all that apply.

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Cevap: Apply an abduction pillow between the client's legs when resting in bed.; Place a raised toilet seat over the commode for elimination needs.; Apply ice packs to the surgical site as a non-pharmacological comfort measure.

Cevap

The correct interventions include applying an abduction pillow, using a raised toilet seat, and applying ice packs to the surgical site.
Appropriate basic care and comfort for a posterior approach total hip arthroplasty focuses on maintaining joint alignment and managing pain. Interventions must prevent adduction (using an abduction pillow) and prevent hip flexion greater than 90 degrees (using a raised toilet seat). Additionally, applying ice is a standard non-pharmacological comfort measure to reduce localized tissue swelling and pain.

Adım Adım Çözüm

1
Identify the surgical procedure and approach.
The client had a right total hip arthroplasty via a posterior approach.
The surgical approach determines specific anatomical precautions (avoiding flexion > 90 degrees, adduction, and internal rotation).
2
Evaluate each intervention for adherence to posterior hip precautions and safe care principles.
Abduction pillows and raised toilet seats maintain proper alignment and prevent excessive flexion or adduction. Ice packs safely manage localized pain.
Maintaining joint stability and promoting comfort are primary goals of post-operative basic care.
3
Identify contraindicated actions related to positioning, delegation, and geriatric assessment.
Low chairs violate hip flexion precautions. Delegating initial skin assessment is outside the UAP's scope. Acute confusion is an abnormal pathological finding.
Recognizing unsafe practices prevents complications such as joint dislocation, missed skin breakdown, or failure to rescue a declining client.

Anahtar Kavram

Post-Operative Basic Care and Positioning Precautions
Soru 85Soru →

A client arrives at the cardiac step-down unit after a diagnostic cardiac catheterization accessed through the right femoral artery. Which intervention must the nurse implement to reduce the risk of hemorrhage at the access site?

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Cevap: Remind the client to maintain the right leg in a straight position.

Cevap

Remind the client to maintain the right leg in a straight position.
Following a femoral artery cardiac catheterization, keeping the affected extremity straight is critical. This position minimizes tension and bending at the groin access site, allowing a stable clot to form and preventing severe hemorrhage or hematoma.

Adım Adım Çözüm

1
Identify the procedure and the specific access site.
The client underwent a cardiac catheterization via the right femoral artery.
The anatomical location of the arterial puncture dictates specific post-procedure mobility restrictions.
2
Determine the primary physiological risk associated with this access site.
The femoral artery is a large vessel under high pressure, making hemorrhage and hematoma formation the greatest immediate risks.
Recognizing the high risk of bleeding guides the selection of protective nursing interventions.
3
Select the nursing intervention that directly prevents stress on the puncture site.
Keeping the right leg completely straight minimizes movement and flexion at the groin.
Maintaining the leg straight prevents disruption of the developing clot and reduces the risk of arterial bleeding.

Anahtar Kavram

Post-procedure positioning to prevent hemorrhage following femoral access
Soru 86Soru →

A 2828-year-old client is admitted to the intensive care unit following a high-speed motor vehicle collision. The client sustained a severe pelvic fracture and a right-sided pulmonary contusion. The client is intubated, mechanically ventilated, and sedated. The nurse evaluates the following clinical data:

Assessment ParameterClient Data
Vital SignsBP 78/42 mm Hg78/42 \text{ mm Hg}, HR 138 beats/min138 \text{ beats/min}, RR 24 breaths/min24 \text{ breaths/min}
OxygenationSpO2\text{SpO}_2 89%89\% on FiO2\text{FiO}_2 0.600.60
HemodynamicsCVP 1 mm Hg1 \text{ mm Hg} (normal 22-8 mm Hg8 \text{ mm Hg})
Urine Output10 mL10 \text{ mL} over the past hour
Arterial Blood GaspH 7.217.21, PaCO2\text{PaCO}_2 54 mm Hg54 \text{ mm Hg}, PaO2\text{PaO}_2 58 mm Hg58 \text{ mm Hg}, HCO3−\text{HCO}_3^- 15 mEq/L15 \text{ mEq/L}

Which of the following interventions should the nurse implement to mitigate the risk of severe physiological deterioration? (Select all that apply.)

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Cevap: Initiate a rapid intravenous infusion of warmed isotonic crystalloid fluids.; Prepare for the emergent administration of uncrossmatched type O-negative packed red blood cells.; Defer non-essential nursing care such as a complete bed bath to cluster activities.

Cevap

The correct interventions are initiating a rapid infusion of warmed isotonic crystalloids, preparing for the administration of uncrossmatched type O-negative packed red blood cells, and deferring non-essential nursing care to cluster activities.
The client is experiencing profound hypovolemic (hemorrhagic) shock due to a severe pelvic fracture, evidenced by severe hypotension, tachycardia, a low CVP, and oliguria. Immediate fluid resuscitation with rapid, warmed isotonic crystalloids and uncrossmatched O-negative blood is essential to restore intravascular volume and tissue perfusion. Additionally, the client is in a state of severe mixed acidosis and hypoxemia; deferring non-essential physical care minimizes oxygen consumption and metabolic demand, protecting the precarious supply-demand balance.

Adım Adım Çözüm

1
Analyze the client's vital signs, hemodynamics, and urine output.
The client exhibits profound hypotension (78/42 mm Hg78/42 \text{ mm Hg}), marked tachycardia (138 beats/min138 \text{ beats/min}), a critically low CVP (1 mm Hg1 \text{ mm Hg}), and severe oliguria (10 mL/hr10 \text{ mL/hr}).
These findings collectively indicate class IV hypovolemic (hemorrhagic) shock secondary to the severe pelvic fracture, requiring immediate intravascular volume replacement with crystalloids and blood products.
2
Interpret the arterial blood gas (ABG) results in the context of the client's injuries.
The ABG reveals a severe mixed acidosis: respiratory acidosis from the pulmonary contusion (PaCO2\text{PaCO}_2 54 mm Hg54 \text{ mm Hg}) and metabolic (lactic) acidosis from systemic tissue hypoperfusion (HCO3−\text{HCO}_3^- 15 mEq/L15 \text{ mEq/L}).
Mixed acidosis confirms life-threatening physiological decompensation. Treatment must focus on restoring perfusion to clear lactic acid, rather than administering bicarbonate which would worsen the respiratory component.
3
Evaluate the impact of nursing interventions on oxygen supply and demand.
Routine activities (like bed baths) and extreme positioning (like high-Fowler's) increase oxygen consumption and decrease venous return.
In states of severe shock and hypoxemia, nursing care must be clustered and deferred to minimize myocardial oxygen demand and preserve cardiac output, necessitating the client remain supine.

Anahtar Kavram

Hemodynamic stabilization and reduction of physiological risk in mixed shock states
Soru 87Soru →

A bedside liver biopsy has just been completed for a client on the medical-surgical unit. Which position should the nurse assist the client into immediately after the procedure to minimize the risk of hemorrhage from the puncture site?

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Cevap: Right side-lying position with a folded towel placed under the puncture site

Cevap

The client should be placed in a right side-lying position with a folded towel placed under the puncture site.
The liver is a highly vascular organ, making hemorrhage the most significant risk following a liver biopsy. Assisting the client into a right side-lying position ensures that the weight of the client's own body applies direct pressure to the puncture site on the right side, which effectively tamponades the area and promotes hemostasis.

Adım Adım Çözüm

1
Identify the anatomical location involved in the procedure.
The liver is located in the right upper quadrant of the abdomen.
Knowing the anatomy determines where pressure must be applied.
2
Identify the primary complication associated with a percutaneous liver biopsy.
Hemorrhage is the greatest risk because the liver is a highly vascular organ.
Understanding the primary post-procedure risk guides the appropriate preventive nursing intervention.
3
Select the position that applies direct pressure to the right upper quadrant.
The right side-lying position effectively compresses the biopsy site.
Direct pressure promotes hemostasis and reduces the potential for bleeding.

Anahtar Kavram

Post-procedure care and positioning to prevent hemorrhage following a liver biopsy
Soru 88Soru →

A client recovering from abdominal surgery reports a pain level of 8 on a 0-to-10 scale. The healthcare provider has ordered 2 mg2 \text{ mg} of morphine sulfate to be administered via intravenous push over 4 minutes. The client currently has a continuous infusion of 0.9% sodium chloride0.9\% \text{ sodium chloride} running at 75 mL/hr75 \text{ mL/hr} through a peripheral catheter. The nurse accesses the injection port closest to the client. Which technique represents the safest method for administering this medication?

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Cevap: Pinch the primary tubing above the injection port, inject a small increment of the medication, release the tubing to allow the primary fluid to flow, and repeat this process over 4 minutes.

Cevap

The safest method is to sequentially pinch the primary tubing, inject a small increment, release the tubing, and repeat the process over the required duration.
The correct answer utilizes the 'pinch-push-release' method. By pinching the tubing above the port, the nurse prevents the medication from flowing backward up the primary line. Injecting a small increment and then releasing the pinch allows the continuous sodium chloride infusion to flush that fraction of the medication directly into the vein. Repeating this cycle over the prescribed 4 minutes ensures a safe, steady delivery and prevents a sudden bolus effect.

Adım Adım Çözüm

1
Analyze the prescribed administration rate and the existing intravenous setup.
The medication must be given slowly over 4 minutes into a line with a continuous carrier fluid.
Rapid administration of opioids can cause severe adverse effects, such as respiratory depression and severe hypotension (speed shock).
2
Evaluate the mechanics of intravenous fluid dynamics when injecting into a continuous line.
Medication injected into a port will follow the path of least resistance. Without pinching the tubing above the port, the medication may travel upward into the primary tubing.
Preventing retrograde flow ensures the entire dose goes toward the client.
3
Determine the effect of dead space in the intravenous tubing between the port and the insertion site.
If the primary line is pinched continuously or stopped, the injected medication stays in this dead space.
To ensure the medication actually reaches the systemic circulation progressively over the 4 minutes, the carrier fluid must be intermittently allowed to flow and flush the small increments into the vein.

Anahtar Kavram

Intravenous Push Administration via Continuous Infusion
Soru 89Soru →

A young adult client is brought to the emergency department experiencing a severe asthma exacerbation. Initially, the client is restless, using accessory muscles to breathe, and has loud, widespread expiratory wheezes. The initial arterial blood gas (ABG) reveals a pH of 7.487.48, PaCO2\text{PaCO}_2 of 30 mm Hg30\text{ mm Hg}, and PaO2\text{PaO}_2 of 64 mm Hg64\text{ mm Hg}. One hour later, following continuous bronchodilator therapy, the nurse notes that the client has become drowsy and the wheezing is now barely audible. A repeat ABG shows a pH of 7.317.31, PaCO2\text{PaCO}_2 of 54 mm Hg54\text{ mm Hg}, and PaO2\text{PaO}_2 of 56 mm Hg56\text{ mm Hg}. Which of the following interventions should the nurse anticipate implementing? Select all that apply.

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Cevap: Prepare equipment for immediate endotracheal intubation and mechanical ventilation; Notify the rapid response team or healthcare provider immediately; Gather a bag-valve-mask (BVM) resuscitator and ensure it is connected to a high-flow oxygen source

Cevap

The correct interventions are to prepare equipment for immediate endotracheal intubation, notify the rapid response team or healthcare provider immediately, and gather a bag-valve-mask (BVM) connected to high-flow oxygen.
The correct interventions focus on immediate life-saving airway management. The client's shift from respiratory alkalosis to respiratory acidosis, combined with lethargy and a sudden absence of wheezing, indicates profound respiratory muscle fatigue and impending respiratory arrest (silent chest). Preparing for intubation, obtaining a BVM with 100%100\% oxygen, and calling the rapid response team are the absolute priority actions to secure the client's airway and breathing.

Adım Adım Çözüm

1
Analyze the initial clinical presentation and ABG results.
The initial ABG (pH 7.487.48, PaCO2\text{PaCO}_2 30 mm Hg30\text{ mm Hg}) indicates respiratory alkalosis due to hyperventilation, a typical early compensatory response in an asthma attack.
Establishing a baseline is necessary to recognize subsequent clinical deterioration.
2
Evaluate the subsequent clinical changes and repeat ABG results.
The repeat ABG (pH 7.317.31, PaCO2\text{PaCO}_2 54 mm Hg54\text{ mm Hg}) reveals uncompensated respiratory acidosis. Combined with drowsiness and a 'silent chest' (diminished wheezing), this indicates severe air trapping and respiratory muscle fatigue.
Identifying the shift from respiratory alkalosis to acidosis is critical for diagnosing impending respiratory failure.
3
Determine the highest priority nursing interventions based on the ABCs (Airway, Breathing, Circulation).
The client requires immediate airway stabilization and ventilatory support, making intubation preparation, a rapid response call, and BVM readiness the priority actions.
Airway and breathing are the absolute top priorities in an actively decompensating respiratory client.

Anahtar Kavram

Status asthmaticus progressing to acute respiratory failure is characterized by a shift from respiratory alkalosis to respiratory acidosis, a decreasing level of consciousness, and the sudden absence of wheezing (silent chest), requiring immediate advanced airway management.
Soru 90Soru →

An older adult client is recovering on the surgical unit 48 hours after a right below-the-knee amputation. The nurse is updating the client's daily care plan. Which interventions should be included to promote comfort and prevent complications? Select all that apply.

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Cevap: Wash the residual limb gently with mild soap and water, ensuring thorough drying.; Position the client prone for 20 to 30 minutes several times a day.; Provide prescribed oral analgesics approximately 30 minutes before physical therapy.

Cevap

The correct interventions are: washing the residual limb with mild soap and water, positioning the client prone several times a day, and providing analgesics before physical therapy.
The correct interventions focus on maintaining skin integrity through proper hygiene, preventing debilitating joint contractures via prone positioning, and ensuring adequate pain control prior to exertion, all of which are fundamental to basic care and comfort for an amputee.

Adım Adım Çözüm

1
Analyze the client's specific clinical status and timeframe.
The client is an older adult, 48 hours post-below-the-knee amputation.
Timing post-surgery dictates which interventions are safe versus contraindicated.
2
Evaluate each intervention for safety, efficacy, and scope of practice.
Hygiene, prone positioning, and preemptive analgesia are safe and evidence-based. Continuous elevation, delegating assessments, and ignoring confusion are unsafe.
Nursing care must align with physiological principles, safety standards, and delegation laws.

Anahtar Kavram

Basic Care and Comfort Post-Amputation
Soru 91Soru →

A nurse is receiving a handoff report for a client who is receiving total parenteral nutrition (TPN) via a dedicated lumen of a central venous catheter (CVC). Which of the following actions should the nurse include in the client's plan of care? (Select all that apply)

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Cevap: Verify the components of the newly prepared TPN solution against the provider's prescription with another registered nurse.; Assess the client's capillary blood glucose levels every 4 to 6 hours.; Hang an infusion of 10% dextrose in water (D10W) at the prescribed TPN rate if the current bag empties before the next one arrives.

Cevap

The correct actions include verifying the TPN components with another registered nurse, assessing blood glucose levels every 4 to 6 hours, and hanging D10W if the TPN bag empties prematurely.
Total Parenteral Nutrition (TPN) is a high-alert medication that requires strict adherence to safety protocols. Because it is customized daily, two nurses must verify the prescription to prevent errors. The high dextrose concentration necessitates routine capillary blood glucose monitoring to detect and treat hyperglycemia. Furthermore, if the TPN infusion is interrupted abruptly, the client is at high risk for severe rebound hypoglycemia due to actively circulating insulin; therefore, infusing 10% dextrose in water (D10W) at the prescribed rate is a critical safety measure to maintain glycemic stability.

Adım Adım Çözüm

1
Evaluate the requirement for medication verification.
Identify that TPN is a high-alert medication containing customized electrolytes and nutrients.
High-alert medications require independent double-checking by two registered nurses to ensure patient safety and correct formulation.
2
Analyze the metabolic complications associated with TPN.
Determine that the high dextrose concentration causes hyperglycemia, and abrupt cessation causes rebound hypoglycemia.
This establishes the critical need for routine blood glucose monitoring and the use of a D10W bridge if the TPN supply is interrupted.
3
Assess the safety of the proposed intravenous line management and delegation.
Identify that TPN lines must remain completely dedicated, infusion rates must not be artificially increased, and clinical site assessments cannot be delegated.
Adhering to these strict pharmacological and delegation protocols prevents severe complications like medication incompatibility, hyperosmolar states, and undetected central line infections.

Anahtar Kavram

Safe administration and monitoring of Total Parenteral Nutrition (TPN)
Soru 92Soru →

A nurse is caring for a client who sustained a severe traumatic brain injury and is receiving mechanical ventilation. The client's continuous intracranial pressure (ICP) reading is 24 mm Hg24\text{ mm Hg}. The most recent arterial blood gas (ABG) results reveal a pH\text{pH} of 7.317.31, a PaCO2\text{PaCO}_2 of 56 mm Hg56\text{ mm Hg}, a PaO2\text{PaO}_2 of 88 mm Hg88\text{ mm Hg}, and an HCO3−\text{HCO}_3^- of 24 mEq/L24\text{ mEq/L}. To reduce the risk of secondary brain injury, which action should the nurse implement first?

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Cevap: Verify that the client's head is in a neutral, midline position and notify the provider to adjust the ventilator.

Cevap

The most appropriate action is to verify that the client's head is in a neutral, midline position and notify the provider to adjust the ventilator settings.
The correct answer addresses two critical aspects of care for a client with elevated intracranial pressure (ICP). First, ensuring the head is in a neutral, midline position prevents occlusion of the jugular veins, facilitating venous blood drainage from the brain. Second, the client's arterial blood gas results indicate uncompensated respiratory acidosis with hypercapnia (PaCO2\text{PaCO}_2 of 56 mm Hg56\text{ mm Hg}). Carbon dioxide is a potent cerebral vasodilator; an elevated PaCO2\text{PaCO}_2 increases cerebral blood flow, which dramatically increases ICP. Notifying the provider to adjust the ventilator settings (such as increasing the respiratory rate) will help the client 'blow off' excess carbon dioxide, thereby causing cerebral vasoconstriction and reducing intracranial pressure.

Adım Adım Çözüm

1
Analyze the client's intracranial pressure (ICP) reading.
The ICP is 24 mm Hg24\text{ mm Hg}, which is significantly elevated above the normal range of 55 to 15 mm Hg15\text{ mm Hg}.
Identifying intracranial hypertension is critical to prioritizing interventions that prevent secondary brain injury and herniation.
2
Interpret the arterial blood gas (ABG) results.
The results show an uncompensated respiratory acidosis (low pH\text{pH} of 7.317.31, elevated PaCO2\text{PaCO}_2 of 56 mm Hg56\text{ mm Hg}, and a normal HCO3−\text{HCO}_3^- of 24 mEq/L24\text{ mEq/L}).
Understanding the acid-base imbalance helps determine the physiological cause contributing to the increased ICP.
3
Determine the physiological relationship between the ABG results and the elevated ICP.
Hypercapnia (elevated PaCO2\text{PaCO}_2) is a potent cerebral vasodilator. This vasodilation increases cerebral blood volume, subsequently raising the intracranial pressure.
Connecting the respiratory status to the neurological status guides the choice of the most effective risk-reduction intervention.
4
Select the most appropriate nursing intervention to mitigate the risk.
The nurse must ensure proper venous drainage by keeping the head midline and collaborate with the provider to increase ventilation (e.g., increase respiratory rate or tidal volume) to blow off excess CO2\text{CO}_2.
These actions directly address the root causes of the elevated ICP without introducing harmful, noxious stimuli.

Anahtar Kavram

Management of Intracranial Pressure and Respiratory Acidosis
Soru 93Soru →

A nurse is reviewing safety protocols for the administration of intravenous (IV) medications and continuous infusions. Which of the following practices should the nurse implement to ensure client safety? Select all that apply.

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: Verify the compatibility of a secondary IV medication with the primary IV fluid prior to administration.; Flush the IV catheter with normal saline before and after giving an intermittent IV push medication.; Utilize an electronic infusion pump when administering high-alert medications that require a strictly controlled flow rate.

Cevap

The correct practices are verifying IV compatibility, flushing the IV line before and after push medications, and utilizing an electronic infusion pump for high-alert medications.
Verifying compatibility, flushing lines, and using infusion pumps for high-alert medications are foundational safety standards in parenteral therapy. These actions prevent drug incompatibilities, ensure complete and safe dose administration, and maintain accurate delivery rates.

Adım Adım Çözüm

1
Review the basic principles of safe parenteral medication administration and delegation.
Identify that the registered nurse is responsible for verifying compatibility, calculating doses correctly, and maintaining precise flow rates.
These principles form the foundation of parenteral therapy safety and scope of practice.
2
Evaluate each option against established safety protocols.
Determine that delegation to UAP, assuming clear fluids are compatible, and using pounds for weight-based calculations are unsafe practices.
Eliminating unsafe actions ensures the selection of only correct, evidence-based nursing interventions.

Anahtar Kavram

Safe Intravenous Medication Administration
Soru 94Soru →

An ambulatory client who recently started taking oral lisinopril for hypertension contacts the clinic to report several new symptoms. Which of the following client reports requires the most immediate intervention by the nurse?

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Cevap: My lips and tongue feel unusually thick and swollen.

Cevap

The client reporting thick and swollen lips and tongue requires the most immediate intervention.
The report of swollen lips and tongue strongly suggests angioedema, a rare but highly dangerous adverse effect of ACE inhibitors like lisinopril. Angioedema involves rapid swelling of the deep dermis and subcutaneous tissues around the face, mouth, and throat, which can quickly occlude the airway. Using the ABC (Airway, Breathing, Circulation) prioritization framework, securing and protecting a compromised airway is always the highest clinical priority.

Adım Adım Çözüm

1
Analyze the client's medication and identified symptoms.
The client is taking lisinopril (an ACE inhibitor) and reports swelling, cough, dizziness, and altered taste.
Identifying the medication's adverse effect profile is necessary to differentiate between expected side effects and severe hypersensitivity reactions.
2
Prioritize the symptoms using the ABCs (Airway, Breathing, Circulation) framework.
Swelling of the lips and tongue (angioedema) threatens the Airway, making it the absolute highest priority.
Airway compromise is an immediate, life-threatening emergency that always takes precedence over chronic or systemic findings.

Anahtar Kavram

ACE Inhibitor Adverse Effects and Airway Prioritization
Soru 95Soru →

A client requires a large-volume cleansing enema to relieve severe constipation. In what chronological sequence should the nurse perform the steps of this procedure?

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

The correct sequence is: position the client on their left side, apply lubricant to the tube, insert the tube 3 to 4 inches, elevate the bag 12 to 18 inches, and release the clamp to instill the fluid.
The correct sequence ensures both client safety and the physiological effectiveness of the enema. Positioning the client appropriately must occur first to align the anatomy. Lubricating the tube is necessary immediately prior to insertion to prevent mucosal tears. Once inserted properly towards the umbilicus, the bag is elevated to the recommended height to control fluid pressure. Finally, the flow is initiated while actively monitoring the client's physical tolerance.

Adım Adım Çözüm

1
Client Positioning
The client is placed in the left lateral Sims' position.
This anatomical position allows gravity to assist the downward flow of fluid into the descending colon.
2
Equipment Preparation
The distal tip of the rectal tube is covered with water-soluble lubricant.
Lubrication prevents tissue injury and minimizes discomfort during insertion.
3
Tube Insertion
The tube is inserted 3 to 4 inches toward the umbilicus.
This follows the natural anatomical pathway of the lower bowel without causing perforation.
4
Pressure Adjustment
The enema bag is positioned 12 to 18 inches above the anus.
This specific height provides a safe, steady hydrostatic pressure without causing excessive bowel distension.
5
Fluid Instillation
The fluid is administered slowly into the rectum.
Rapid instillation can cause severe cramping and premature expulsion of the enema, defeating the purpose of the procedure.

Anahtar Kavram

Enteral Elimination Procedures and Enema Administration
Soru 96Soru →

A nurse is caring for a client who is receiving continuous total parenteral nutrition (TPN) via a multilumen central venous catheter. Which of the following actions should the nurse include in the client's plan of care? Select all that apply.

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: Dedicate one specific lumen of the central venous catheter exclusively for the total parenteral nutrition infusion; Assess the client's capillary blood glucose levels every 4 to 6 hours; Replace the total parenteral nutrition solution bag and intravenous administration set every 24 hours

Cevap

The correct actions are to dedicate a specific central line lumen exclusively for TPN, monitor capillary blood glucose every 4 to 6 hours, and change the TPN bag and intravenous tubing every 24 hours.
Total parenteral nutrition requires strict adherence to safety protocols due to its high osmolarity and nutrient density. It must be administered through a dedicated central line lumen to prevent drug incompatibilities. Because of the high dextrose concentration, capillary blood glucose levels should be monitored every 4 to 6 hours to detect hyperglycemia. Furthermore, to minimize the risk of severe bloodstream infections, the TPN solution and the intravenous administration set must be changed every 24 hours.

Adım Adım Çözüm

1
Evaluate the requirement for a dedicated lumen.
TPN requires a dedicated lumen to prevent medication precipitation and reduce contamination risks.
Maintaining a dedicated line ensures drug compatibility and adherence to strict infection control standards.
2
Determine the appropriate blood glucose monitoring frequency.
Blood glucose must be checked every 4 to 6 hours during the infusion.
The continuous delivery of a high-dextrose solution presents a significant risk for the development of hyperglycemia.
3
Assess the protocol for changing TPN equipment.
The TPN bag and the entire intravenous administration tubing must be replaced every 24 hours.
Because TPN is highly nutritious, it promotes rapid bacterial and fungal growth if left hanging for prolonged periods.
4
Evaluate the incorrect practices regarding TPN administration.
Increasing the rate, pausing for incompatible drugs, and drawing blood from the TPN line are identified as unsafe practices.
These actions can cause fluid overload, profound hypoglycemia, line contamination, and inaccurate laboratory results.

Anahtar Kavram

Total Parenteral Nutrition (TPN) Administration and Safety Principles
Soru 97Soru →

An adult client is transferred to the medical-surgical unit immediately after a percutaneous liver biopsy. To mitigate the risk of internal bleeding from the puncture site, which positioning strategy is most appropriate for this client?

Cevabı ve açıklamayı göster

Cevap: Right side-lying with a small towel or pillow placed under the puncture site

Cevap

The client should be positioned right side-lying with a small towel or pillow under the puncture site.
Because the liver is a highly vascular organ located on the right side of the body, a percutaneous biopsy carries a significant risk of hemorrhage. Positioning the client on the right side applies direct mechanical pressure to the biopsy site against the ribs and mattress, creating a tamponade effect that promotes hemostasis.

Adım Adım Çözüm

1
Identify the primary complication associated with a percutaneous liver biopsy.
The liver is highly vascular, making internal hemorrhage the most significant immediate post-procedure risk.
Recognizing the risk dictates the specific nursing interventions required for client safety.
2
Determine the anatomical location of the organ and the goal of positioning.
The liver is located in the right upper quadrant of the abdomen. The clinical goal is to apply direct pressure to the biopsy site.
Applying external pressure helps to achieve hemostasis (tamponade) at the vascular puncture site.
3
Select the position that best achieves hemostasis based on anatomy.
Placing the client in a right side-lying position compresses the liver against the chest wall and mattress.
This specific physical compression minimizes bleeding and significantly reduces the risk of hemorrhagic shock.

Anahtar Kavram

Post-procedure care and therapeutic positioning to prevent hemorrhage following highly vascular organ biopsies.
Tahmini Süre:45s
Soru 98Soru →

An older adult client with a history of severe bilateral peripheral arterial disease (PAD) reports intense, burning pain in the lower extremities that wakes them during the night. The client's lower extremities are hairless, with thin, dry skin that is cool to the touch. The nurse is planning basic care to promote comfort and sleep. Which nursing action is most appropriate?

Cevabı ve açıklamayı göster

Cevap: Assist the client to sit on the side of the bed and dangle the legs over the edge when the pain occurs.

Cevap

Assist the client to sit on the side of the bed and dangle the legs over the edge when the pain occurs.
Clients with severe peripheral arterial disease (PAD) often experience ischemic rest pain at night due to decreased cardiac output during sleep and the horizontal position of the legs in bed, which further reduces arterial perfusion. Assisting the client to dangle their legs over the side of the bed places the extremities in a dependent position, allowing gravity to enhance arterial blood flow to the distal tissues and providing significant comfort.

Adım Adım Çözüm

1
Analyze the client's clinical presentation and medical history.
The client has severe peripheral arterial disease (PAD) and is experiencing nocturnal ischemic rest pain due to poor perfusion.
Identifying the underlying pathophysiology (arterial versus venous insufficiency) is required to determine the correct physiological comfort measure.
2
Evaluate the hemodynamic goal for a client with arterial insufficiency.
The primary goal is to maximize arterial blood flow to the lower extremities.
Arterial flow is severely compromised by narrowed or blocked arteries, causing ischemic pain when the legs are in a horizontal position during sleep.
3
Select the appropriate positioning intervention to achieve this hemodynamic goal.
Placing the legs in a dependent position (dangling over the edge of the bed) is selected.
Gravity assists arterial blood flow to the distal tissues, relieving the ischemic pain.

Anahtar Kavram

Basic care and comfort for peripheral arterial disease involves positioning the extremities in a dependent position to promote arterial circulation.
Soru 99Soru →

A nurse is preparing to remove a client's non-tunneled percutaneous central venous catheter (CVC). To minimize the risk of an air embolism, in what order should the nurse perform the following actions? Arrange the steps in the correct sequence from first to last.

Öğeleri doğru sıraya koymak için sürükleyin

Cevabı ve açıklamayı göster

Cevap

The correct sequence for removing a central venous catheter to prevent air embolism is to first position the client supine, then instruct them to perform the Valsalva maneuver, remove the catheter smoothly, apply immediate direct pressure, and finally secure an occlusive dressing.
Preventing an air embolism during CVC removal requires manipulating pressure gradients. Supine positioning and the Valsalva maneuver increase central venous pressure above atmospheric pressure. Swift removal limits exposure time, followed immediately by pressure and an occlusive dressing to seal the tract.

Adım Adım Çözüm

1
Place the client in a supine or Trendelenburg position.
Intrathoracic venous pressure is increased.
Lowering the head of the bed utilizes gravity to increase venous pressure above atmospheric pressure, reducing the risk of air being sucked into the central circulation.
2
Instruct the client to take a deep breath and bear down.
The client performs the Valsalva maneuver.
This maneuver further raises intrathoracic pressure precisely at the moment the vein will be exposed, creating a positive pressure gradient that pushes blood out rather than pulling air in.
3
Remove the catheter smoothly and continuously.
The catheter is extracted without tissue trauma.
A swift, continuous motion limits the duration the venous pathway is open to the atmosphere.
4
Apply direct manual pressure to the site with sterile gauze.
Hemostasis begins and the entry tract is physically blocked.
Firm pressure for 5 to 10 minutes stops bleeding and prevents air aspiration while a stable clot forms.
5
Apply an airtight occlusive dressing over the site.
The insertion site is completely sealed.
An occlusive dressing prevents any delayed air entry into the tract over the next 24 to 72 hours.

Anahtar Kavram

Central Venous Catheter Removal and Air Embolism Prevention
Soru 100Soru →

A client weighing 105 kg105\text{ kg} is admitted to the emergency department with an acute ischemic stroke. The healthcare provider prescribes intravenous alteplase therapy at 0.9 mg/kg0.9\text{ mg/kg}. Which of the following nursing actions are required for the safe administration and monitoring of this pharmacological therapy? (Select all that apply.)

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: Administer 10%10\% of the calculated total alteplase dose as an intravenous bolus over 1 minute1\text{ minute} prior to starting the continuous infusion.; Delay the insertion of indwelling urinary catheters, nasogastric tubes, or intra-arterial catheters for at least 24 hours24\text{ hours} after the infusion.; Administer prescribed intravenous labetalol if the client's systolic blood pressure exceeds 180 mm Hg180\text{ mm Hg} during the infusion.

Cevap

The safe administration of alteplase requires giving 10%10\% of the total maximum 90 mg90\text{ mg} dose as a 1-minute1\text{-minute} bolus, strictly controlling systolic blood pressure below 180 mm Hg180\text{ mm Hg}, and avoiding any invasive procedures for at least 24 hours24\text{ hours} to prevent severe bleeding complications.
Safe alteplase administration involves giving 10%10\% of the total dose as a bolus over 1 minute1\text{ minute}, strictly managing blood pressure (systolic < 180 mm Hg180\text{ mm Hg}) with rapid-acting antihypertensives, and minimizing bleeding risks by delaying invasive procedures (like catheter insertions) for 24 hours24\text{ hours}.

Adım Adım Çözüm

1
Calculate the safe medication dosage, recognizing the absolute maximum limit.
The calculated dose for a 105 kg105\text{ kg} client is 94.5 mg94.5\text{ mg}, but the absolute maximum allowable dose must be capped at 90 mg90\text{ mg}.
Exceeding the 90 mg90\text{ mg} maximum dose significantly increases the risk of fatal intracranial hemorrhage, regardless of the client's actual body weight.
2
Determine the proper administration method and rate.
The protocol dictates that 10%10\% of the total dose is given as an IV bolus over 1 minute1\text{ minute}, with the remaining 90%90\% infused continuously over 60 minutes60\text{ minutes}.
This biphasic administration is required to quickly achieve and then safely maintain therapeutic thrombolytic blood levels.
3
Establish a dedicated intravenous line.
Alteplase must run through its own dedicated line, not piggybacked with other medications like potassium chloride.
Alteplase is physically incompatible with many medications and requires uninterrupted, precise infusion rates.
4
Implement required safety monitoring protocols during and after the infusion.
Neurological status and vital signs must be checked every 15 minutes15\text{ minutes}, blood pressure must be kept below 180/105 mm Hg180/105\text{ mm Hg}, and all invasive procedures must be delayed.
These measures are critical to promptly identify hemorrhagic conversion and minimize bleeding risks while the systemic thrombolytic effect is active.

Anahtar Kavram

Alteplase (tPA) Administration and Monitoring Protocol
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Physiological Integrity Alıştırma Soruları — NCLEX-RN — Sayfa 5 | Examkin