Physiological Integrity

1960 soru

Soru 1821Soru →

A nurse is developing a plan of care for an older adult client who is largely immobile and has a newly identified Stage 3 sacral pressure injury. Which of the following basic care and comfort interventions should the nurse include? Select all that apply.

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Cevap: Reposition the client at least every 2 hours using a 30-degree lateral tilt position.; Utilize a friction-reducing device, such as a lift sheet, when repositioning the client in bed.; Provide nutritional supplements that are high in protein and vitamin C between scheduled meals.

Cevap

The correct interventions are repositioning the client using a 30-degree lateral tilt, utilizing a friction-reducing device during movement, and providing high-protein, vitamin C-rich nutritional supplements.
Interventions that safely reduce pressure (30-degree lateral tilt), prevent friction (lift sheets), and provide building blocks for tissue repair (protein and vitamin C) are essential, evidence-based components of basic care and comfort for a client with a pressure injury.

Adım Adım Çözüm

1
Identify the primary clinical goals for a client with a Stage 3 sacral pressure injury.
Goals include offloading pressure, preventing further tissue damage from shearing or friction, and promoting systemic wound healing.
Establishing goals ensures that selected basic care and comfort interventions directly address the underlying pathophysiology of the injury.
2
Evaluate the positioning and mobility interventions for safety and efficacy.
A 30-degree lateral tilt and the use of lift sheets are safe, effective methods to reduce pressure and shear. A high Fowler's position increases sacral shear and is contraindicated.
Improper positioning is a primary driver of pressure injury progression.
3
Assess the nutritional and delegation interventions against nursing standards of practice.
Protein and vitamin C are essential for healing and should be provided. Delegating wound assessment to a UAP is unsafe and outside their scope of practice.
The registered nurse must retain responsibility for clinical assessments, while ensuring the client receives the metabolic support necessary for tissue repair.

Anahtar Kavram

Basic care measures for severe pressure injuries focus on offloading pressure (30-degree tilt), minimizing shear/friction (lift sheets), and optimizing nutritional status (protein/vitamin C), while retaining clinical assessments within the RN scope of practice.
Soru 1822Soru →

A nurse is assessing a client who is 12 hours postoperative following an open laparotomy for a ruptured spleen. Which of the following assessment findings are indicative of early compensatory hypovolemic shock? Select all that apply.

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Cevap: Restlessness and unexplained apprehension; Narrowing of the pulse pressure; Arterial blood gas indicating uncompensated respiratory alkalosis

Cevap

The correct findings that indicate early compensatory hypovolemic shock are restlessness and unexplained apprehension, narrowing of the pulse pressure, and an arterial blood gas indicating uncompensated respiratory alkalosis.
In the early compensatory stage of hypovolemic shock, sympathetic nervous system activation causes peripheral vasoconstriction, which elevates the diastolic blood pressure and results in a narrowing pulse pressure. Mild cerebral hypoxia and sympathetic stimulation manifest early as restlessness and unexplained apprehension. Furthermore, the body compensates for decreased tissue perfusion by increasing the respiratory rate (tachypnea), which excessively eliminates carbon dioxide and results in uncompensated respiratory alkalosis on an arterial blood gas.

Adım Adım Çözüm

1
Analyze the clinical scenario and the client's risk factors.
The client is 12 hours postoperative from a ruptured spleen, placing them at high risk for hemorrhage and hypovolemic shock.
Identifying the primary risk guides the nurse to anticipate specific pathophysiological changes.
2
Recall the physiological mechanisms of the early compensatory stage of shock.
The body activates the sympathetic nervous system, releasing epinephrine and norepinephrine to maintain cardiac output and oxygen delivery.
Understanding the sympathetic response explains the vital sign and neurological changes seen early in shock.
3
Evaluate the options against early compensatory mechanisms.
Restlessness occurs due to early cerebral hypoxia. Vasoconstriction increases diastolic pressure, causing a narrowed pulse pressure. Tachypnea occurs to increase oxygenation, leading to respiratory alkalosis.
Differentiating early compensatory signs from late progressive signs is crucial for timely intervention.
4
Identify and eliminate late or incorrect manifestations of shock.
Profound hypotension is a late sign (progressive stage) indicating compensatory failure. A decreased respiratory rate (causing respiratory acidosis) is also a late sign indicating respiratory muscle fatigue or central nervous system depression.
Eliminating distractors ensures only the early indicators are selected.

Anahtar Kavram

Early Compensatory Hypovolemic Shock
Soru 1823Soru →

An intensive care nurse assumes care for a client admitted with acute decompensated heart failure. The client, who weighs 176 lb, has a continuous intravenous line infusing dopamine. The medication bag is labeled: dopamine 400 mg in 250 mL of 5% dextrose in water. The smart pump displays a current infusion rate of 15 mL/hr. Based on this data, what dosage of dopamine is the client receiving in mcg/kg/min? Record your answer as a whole number.

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Cevap: 5

Cevap

5
To determine the exact mcg/kg/min dose from a known mL/hr rate, the nurse must work backward through standard infusion calculations. First, convert the weight to kilograms (176 ÷ 2.2 = 80 kg) and find the bag's concentration in mcg/mL (400,000 mcg ÷ 250 mL = 1,600 mcg/mL). Next, determine the hourly dose in mcg by multiplying the volume rate by the concentration (15 mL/hr × 1,600 mcg/mL = 24,000 mcg/hr). Convert this to a per-minute dose by dividing by 60 (24,000 ÷ 60 = 400 mcg/min). Finally, divide by the client's weight in kg to find the exact dose being delivered (400 ÷ 80 = 5 mcg/kg/min).

Adım Adım Çözüm

1
Convert the client's weight from pounds to kilograms.
176 lb ÷ 2.2 lb/kg = 80 kg
Weight-based dosing requires the client's weight to be expressed in kilograms.
2
Determine the concentration of the dopamine solution in mcg/mL.
400 mg = 400,000 mcg. Then, 400,000 mcg ÷ 250 mL = 1,600 mcg/mL.
The final requested unit is in micrograms (mcg), so the total medication amount must be converted from milligrams to micrograms before determining the per-mL concentration.
3
Calculate the total amount of dopamine infusing per hour.
15 mL/hr × 1,600 mcg/mL = 24,000 mcg/hr
Multiplying the current pump volume rate by the concentration yields the total hourly dose.
4
Convert the hourly dose to a per-minute dose.
24,000 mcg/hr ÷ 60 min/hr = 400 mcg/min
The requested administration rate is per minute, necessitating the division of the hourly rate by 60.
5
Calculate the final dose in mcg/kg/min.
400 mcg/min ÷ 80 kg = 5 mcg/kg/min
Dividing the total minute dose by the client's weight in kilograms provides the precise weight-based dosage currently being delivered.

Anahtar Kavram

Weight-based continuous intravenous infusion calculation (reverse calculation from mL/hr to mcg/kg/min)
Soru 1824Soru →

A client weighing 198198 lb is admitted with a new diagnosis of deep vein thrombosis. The healthcare provider prescribes a continuous intravenous (IV) heparin infusion. The hospital's weight-based protocol orders an initial IV bolus of 8080 units/kg, followed by a continuous infusion at 1818 units/kg/hr. The pharmacy dispenses a premixed IV bag containing 25,00025,000 units of heparin in 250250 mL of 5%5\% Dextrose in Water (D5W).

Based on the protocol, which of the following is the correct continuous infusion rate in mL/hr to program into the IV pump? (Round the final answer to the nearest tenth.)

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Cevap: 16.2

Cevap

The correct continuous infusion rate is 16.2 mL/hr.
The correct rate is determined by first converting the client's weight to kilograms (198÷2.2=90198 \div 2.2 = 90 kg). Next, calculate the hourly unit requirement (90×18=1,62090 \times 18 = 1,620 units/hr). Then, determine the concentration of the IV fluid (25,00025,000 units ÷250\div 250 mL = 100100 units/mL). Finally, divide the required hourly units by the concentration to find the rate in mL/hr (1,620÷100=16.21,620 \div 100 = 16.2 mL/hr).

Adım Adım Çözüm

1
Convert the client's weight from pounds to kilograms.
198÷2.2=90198 \div 2.2 = 90 kg
Weight-based medication protocols require the client's exact weight in kilograms for safe and accurate dosing.
2
Calculate the prescribed continuous hourly dose of heparin in units.
9090 kg ×18\times 18 units/kg/hr = 1,6201,620 units/hr
The continuous infusion rate is prescribed as 1818 units per kilogram per hour.
3
Determine the concentration of the dispensed heparin IV bag.
25,00025,000 units ÷250\div 250 mL = 100100 units/mL
Finding the concentration of units per mL simplifies the final calculation for the IV infusion pump rate.
4
Calculate the final IV infusion pump rate in mL/hr.
1,6201,620 units/hr ÷100\div 100 units/mL = 16.216.2 mL/hr
The pump must be programmed in mL/hr to deliver the prescribed continuous hourly dose.

Anahtar Kavram

Safe calculation of weight-based continuous intravenous medication infusions.
Soru 1825Soru →

A nurse is evaluating a client who is receiving treatment for severe acute pancreatitis. The client's vital sign trends over the last hour show a blood pressure decrease from 110/70 mm Hg to 92/58 mm Hg, and a heart rate increase from 98 bpm to 122 bpm. The client is breathing at 28 breaths/min. Assessment reveals cool, pale extremities. The arterial blood gas (ABG) results are: pH 7.29, PaCO2\text{PaCO}_2 30 mm Hg, HCO3−\text{HCO}_3^- 14 mEq/L. Based on the clinical assessment and ABG results, which of the following is the most accurate interpretation of the client's current physiological state?

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Cevap: Partially compensated metabolic acidosis secondary to decreased tissue perfusion and lactic acid accumulation

Cevap

The client is experiencing partially compensated metabolic acidosis due to decreased tissue perfusion leading to lactic acid accumulation.
The arterial blood gas results demonstrate a primary metabolic acidosis (pH 7.29, HCO3−\text{HCO}_3^- 14 mEq/L) with partial respiratory compensation (hyperventilation resulting in a PaCO2\text{PaCO}_2 of 30 mm Hg). The client's clinical presentation—worsening hypotension, marked tachycardia, and cool extremities—indicates progression into hypovolemic or distributive shock (common complications of severe pancreatitis). This systemic hypoperfusion forces cells into anaerobic metabolism, producing lactic acid, which causes the metabolic acidosis.

Adım Adım Çözüm

1
Analyze the arterial pH to determine the overall acid-base balance.
The pH is 7.29, which is below the normal range of 7.35-7.45, indicating acidemia.
Identifying whether the blood is acidic or alkalotic is the first step in diagnosing the primary disorder.
2
Evaluate the respiratory (PaCO2\text{PaCO}_2) and metabolic (HCO3−\text{HCO}_3^-) components.
The PaCO2\text{PaCO}_2 is 30 mm Hg (alkalotic) and the HCO3−\text{HCO}_3^- is 14 mEq/L (acidotic).
Matching the component that aligns with the abnormal pH identifies the primary cause of the imbalance.
3
Determine the presence and extent of compensation.
The PaCO2\text{PaCO}_2 has dropped below normal to counteract the acidosis (respiratory compensation). Because the pH is still abnormal (7.29), it is partially compensated.
Assessing the opposing component reveals the body's physiological attempt to restore a normal pH.
4
Correlate the laboratory findings with the client's clinical presentation.
Hypotension (92/58 mm Hg), marked tachycardia, and cool extremities indicate progressive shock, which causes poor tissue perfusion, anaerobic metabolism, and lactic acidosis.
Connecting the ABG results to the clinical signs ensures a comprehensive understanding of the patient's physiological deterioration.

Anahtar Kavram

Arterial Blood Gas Interpretation and Shock Pathophysiology
Soru 1826Soru →

A nurse is caring for an adult client who is receiving mechanical ventilation for acute respiratory failure. The client is currently positioned flat and supine in bed. The most recent arterial blood gas (ABG) results reveal a pH\text{pH} of 7.287.28, PaCO2\text{PaCO}_2 of 58 mm Hg58 \text{ mm Hg}, PaO2\text{PaO}_2 of 62 mm Hg62 \text{ mm Hg}, and HCO3−\text{HCO}_3^- of 24 mEq/L24 \text{ mEq/L}. Which of the following nursing actions should be prioritized to reduce the client's risk for physiological decompensation?

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Cevap: Elevating the head of the bed to between 3030 and 4545 degrees

Cevap

Elevating the head of the bed to between 3030 and 4545 degrees
The arterial blood gas values indicate uncompensated respiratory acidosis (pH\text{pH} 7.287.28, PaCO2\text{PaCO}_2 58 mm Hg58 \text{ mm Hg}) combined with hypoxemia (PaO2\text{PaO}_2 62 mm Hg62 \text{ mm Hg}). Lying flat severely restricts diaphragmatic excursion and decreases lung compliance. By elevating the head of the bed to between 3030 and 4545 degrees, gravity shifts the abdominal organs downward, thereby promoting optimal lung expansion, decreasing the work of breathing, and facilitating the clearance of retained carbon dioxide. Furthermore, this positioning is a critical standard of care to reduce the risk of ventilator-associated pneumonia (VAP) in intubated clients.

Adım Adım Çözüm

1
Analyze the arterial blood gas (ABG) results to determine the primary physiological imbalance.
The pH\text{pH} is low (7.287.28), PaCO2\text{PaCO}_2 is high (58 mm Hg58 \text{ mm Hg}), and HCO3−\text{HCO}_3^- is normal (24 mEq/L24 \text{ mEq/L}), indicating uncompensated respiratory acidosis.
Accurate ABG interpretation is essential to determine whether the client's deterioration is respiratory or metabolic in origin.
2
Evaluate the impact of the client's current positioning on their respiratory status.
The client is lying flat and supine, a position that restricts lung expansion and diaphragm movement.
A flat position reduces functional residual capacity and worsens carbon dioxide retention in mechanically ventilated clients.
3
Select the intervention that most directly mitigates the identified respiratory risk.
Elevating the head of the bed to 30−4530-45 degrees is prioritized.
This positioning utilizes gravity to pull abdominal organs away from the diaphragm, maximizing lung expansion, improving gas exchange, and serving as a primary measure to prevent ventilator-associated pneumonia.

Anahtar Kavram

Risk Reduction via Proper Positioning in Respiratory Acidosis
Soru 1827Soru →

A 65-year-old client with severe heart failure has a single peripheral venous catheter in the left forearm. A milrinone drip is currently infusing through this line to maintain cardiac output. Due to increasing respiratory distress from pulmonary edema, the healthcare provider orders a stat dose of furosemide 40 mg to be given by IV push. The drug reference manual indicates that furosemide and milrinone will form a precipitate if mixed. Which action represents the safest method to deliver the prescribed diuretic?

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Cevap: Establish a new peripheral venous access site to administer the furosemide.

Cevap

The safest method is to establish a new peripheral venous access site to administer the furosemide.
Establishing a new IV line is the correct action because it addresses two critical safety priorities: it prevents chemical precipitation between incompatible medications, and it ensures that the life-sustaining continuous milrinone infusion is not interrupted. Milrinone has a short half-life, and abruptly stopping it to flush the line could cause an acute drop in cardiac output and severe hemodynamic instability in a client with heart failure.

Adım Adım Çözüm

1
Identify the chemical incompatibility between furosemide and milrinone.
The medications cannot be mixed or run concurrently in the same line without forming a precipitate.
Precipitation can occlude the IV catheter and cause a potentially fatal embolus.
2
Evaluate the feasibility of the 'stop, flush, administer, flush' method.
Determine that this method is contraindicated.
Milrinone is a continuous vasoactive infusion necessary to maintain cardiac output; pausing it can lead to acute hemodynamic instability.
3
Determine the only remaining safe intervention.
A second, independent IV access must be established.
This allows the continuous inotrope to run uninterrupted while safely delivering the urgent diuretic without risk of precipitation.

Anahtar Kavram

Management of incompatible intravenous medications involving critical continuous vasoactive infusions.
Soru 1828Soru →

A nurse is caring for a client with suspected *Neisseria meningitidis* who has just returned to the unit following a bedside lumbar puncture. Which of the following nursing actions is most appropriate to minimize the client's risk for post-procedure complications and maintain a safe environment?

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Cevap: Maintain the client in a flat, supine position for 4 to 8 hours and ensure droplet precautions are strictly followed.

Cevap

Maintain the client in a flat, supine position for 4 to 8 hours and ensure droplet precautions are strictly followed.
The correct answer addresses two critical priorities for this client. Following a lumbar puncture, the client should remain in a flat, supine position for 4 to 8 hours to prevent cerebrospinal fluid (CSF) leakage and minimize the risk of a post-dural puncture headache. Additionally, Neisseria meningitidis is transmitted via large respiratory droplets, requiring the immediate implementation of droplet precautions to maintain environmental safety and prevent transmission to healthcare workers and other clients.

Adım Adım Çözüm

1
Identify the primary physiological risks associated with the immediate post-lumbar puncture period.
The client is at high risk for a cerebrospinal fluid (CSF) leak at the dural puncture site, which can lead to a severe spinal headache.
A puncture in the dura mater allows CSF to escape, especially if hydrostatic pressure increases due to an upright posture.
2
Determine the appropriate client positioning to mitigate this physiological risk.
The client must remain in a flat, supine position for 4 to 8 hours.
This flat positioning equalizes hydrostatic pressure along the spinal column and allows the dural puncture site time to seal off, reducing the risk of CSF leakage.
3
Identify the infection control requirements for suspected Neisseria meningitidis.
Droplet precautions must be implemented.
The pathogen is transmitted through large respiratory droplets, making standard precautions insufficient and airborne precautions unnecessary.

Anahtar Kavram

Reduction of risk potential following a lumbar puncture involves maintaining a flat, supine position to prevent cerebrospinal fluid leakage, combined with appropriate transmission-based precautions for the underlying infectious etiology.
Soru 1829Soru →

A nurse is providing morning care for an older adult client who is 2 days post-operative following a right total hip arthroplasty (posterior approach). Which nursing action is most appropriate?

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Cevap: Place an abductor pillow between the client's lower extremities when turning them onto their unaffected side.

Cevap

The nurse should maintain the client's hip in an abducted position by using an abductor pillow when turning the client onto their unaffected side.
Following a posterior approach total hip arthroplasty, the client is at a high risk for prosthetic dislocation if the operative hip is adducted (moved across the midline), internally rotated, or flexed beyond 90 degrees. Placing an abductor pillow between the client's lower extremities effectively prevents adduction, especially during movement and turning, thereby maintaining proper anatomical alignment and joint stability.

Adım Adım Çözüm

1
Identify the specific surgical procedure and its associated risks.
The client underwent a right total hip arthroplasty using a posterior approach.
Different surgical approaches dictate specific post-operative movement precautions to ensure joint stability.
2
Recall the necessary positioning restrictions for a posterior hip approach.
The client must strictly avoid hip flexion greater than 90 degrees, hip adduction (crossing the midline), and internal rotation.
These specific movements can lever the prosthetic head out of the acetabulum, leading to a painful and dangerous dislocation.
3
Evaluate each nursing action against safety guidelines and the scope of practice.
Using an abductor pillow aligns with safety precautions. Elevating the head of the bed to 90 degrees violates positioning rules, delegating assessment violates scope of practice, and dismissing confusion ignores a potential pathological issue.
Ensures the selected intervention promotes basic care and comfort while actively preventing post-operative complications.

Anahtar Kavram

Post-operative positioning and mobility precautions for total hip arthroplasty
Soru 1830Soru →

An adult client with suspected cirrhosis is scheduled for a bedside percutaneous liver biopsy. To minimize the risk of procedural and post-procedural complications, arrange the following nursing actions in the correct chronological sequence. (Place the first action at the top and the final action at the bottom.)

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Cevap

The correct sequence begins with reviewing coagulation labs, followed by supine positioning with the right arm elevated, instructing the client to exhale and hold their breath during insertion, applying immediate pressure to the site, and finally placing the client in a right lateral position.
The correct sequence prioritizes pre-procedural safety by first verifying coagulation status. Next, the client is positioned to maximize access while minimizing anatomical risk. Instructing the client to exhale and hold their breath protects the diaphragm and lungs. Finally, applying immediate manual pressure followed by a right lateral position provides necessary continuous compression to prevent the most common severe complication: hemorrhage.

Adım Adım Çözüm

1
Review the client's most recent prothrombin time (PT), INR, and platelet count.
Coagulation status is verified.
Identifies bleeding risk before the procedure begins, which is the highest priority safety check.
2
Position the client supine with their right arm resting behind their head.
The lower right rib cage is expanded.
Provides optimal and safe access to the biopsy site.
3
Instruct the client to exhale completely and hold their breath during needle insertion.
The diaphragm is elevated and held stationary.
Prevents accidental puncture of the lung or pleura during needle advancement.
4
Apply direct, firm pressure to the biopsy insertion site.
Hemostasis is initiated.
Controls immediate bleeding as soon as the needle is withdrawn.
5
Assist the client into a right lateral decubitus position.
The client's body weight compresses the puncture site.
Provides continuous external pressure to the liver to prevent post-procedural internal hemorrhage.

Anahtar Kavram

Reduction of Risk Potential during Percutaneous Liver Biopsy
Soru 1831Soru →

While performing a routine surgical incision check on a postoperative laparotomy client, the client experiences a forceful coughing episode and reports a sudden tearing sensation. Upon inspection, the nurse observes complete separation of the surgical wound layers with visible protrusion of intestinal loops. Arrange the following emergency nursing actions in the correct priority sequence to mitigate the risk of severe physiological decompensation.

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Cevap

The correct sequence is to first call for assistance, then position the client to reduce abdominal tension, cover the exposed organs with sterile moist dressings, assess vital signs for impending shock, and finally prepare the client for emergency surgery.
In any acute surgical emergency involving structural failure (evisceration), the nurse must adhere to a strict order of operations: secure help without abandoning the client, mitigate the immediate physical mechanism of injury (relieve abdominal tension), protect the vulnerable tissue from irreversible damage (moist sterile dressings), evaluate systemic impact (vital signs), and facilitate definitive medical treatment (surgery prep).

Adım Adım Çözüm

1
Call for immediate assistance and delegate a colleague to notify the surgeon.
Additional nursing staff is secured without abandoning the critically vulnerable client.
The primary nurse must remain with the client to monitor the airway and prevent the client from touching the wound. A delegated colleague can rapidly retrieve sterile saline and dressings.
2
Place the client in a low Fowler's position with the knees flexed.
Intra-abdominal pressure is mechanically decreased.
Elevating the head of the bed slightly (15-20 degrees) and bending the knees relaxes the rectus abdominis muscles, which stops the mechanical force pushing the intestines out of the abdominal cavity.
3
Cover the protruding organs with sterile, saline-moistened dressings.
Exposed viscera are protected from the external environment.
Applying sterile, saline-soaked dressings prevents the delicate intestinal mucosa from drying out—which can cause irreversible tissue necrosis—and provides a critical barrier against infection.
4
Assess vital signs continuously to monitor for hypovolemic shock.
Baseline hemodynamic status is established during the crisis.
Evisceration can precipitate massive third-spacing of fluids and hemorrhagic or hypovolemic shock. Once the physical integrity of the bowel is protected, continuous cardiovascular monitoring dictates fluid resuscitation needs.
5
Prepare the client for emergency surgical repair.
The client is readied for definitive operative intervention.
Evisceration cannot be managed conservatively. Verifying informed consent, ensuring large-bore IV access, and preparing the chart for the operating room are the final risk reduction steps before transfer.

Anahtar Kavram

Management of a surgical evisceration requires immediate intervention to prevent bowel ischemia and shock, prioritizing tension reduction and tissue protection while never leaving the client unattended.
Soru 1832Soru →

The nursing unit receives a client who is being treated for a pulmonary embolism with a continuous intravenous (IV) heparin infusion. The attending provider adds a prescription for intermittent IV vancomycin due to a newly suspected wound infection. During the medication preparation phase, the nurse checks a compatibility chart and identifies that heparin and vancomycin form a precipitate when mixed at the Y-site. The client has only one functioning peripheral venous access catheter.

Which action represents the safest nursing intervention?

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Cevap: Initiate a second peripheral IV access site to administer the vancomycin independently.

Cevap

The most appropriate action is to initiate a second peripheral IV access site to administer the vancomycin independently.
The correct response is to initiate a separate peripheral IV access site. Because heparin and vancomycin are chemically incompatible, they cannot mix in the same tubing. Additionally, heparin is a critical, high-alert medication with a short half-life used to prevent clot extension in a pulmonary embolism; interrupting its continuous infusion to administer a long-infusing medication like vancomycin would place the client at significant risk for worsening thromboembolism.

Adım Adım Çözüm

1
Identify the primary pharmacological concern in the scenario.
The nurse recognizes that heparin and vancomycin are physically incompatible at the Y-site.
Administering incompatible medications through the same IV line can cause precipitation and patient harm.
2
Evaluate the clinical implications of the continuous medication.
The client is receiving heparin for a pulmonary embolism, which requires continuous therapeutic anticoagulation.
Heparin has a short half-life; prolonged interruption increases the risk of clot extension or new thromboembolism.
3
Analyze the administration requirements for the intermittent medication.
Vancomycin requires a slow infusion rate over at least 60 minutes to prevent adverse reactions.
Rapid vancomycin administration causes a dangerous histamine-mediated response known as vancomycin infusion reaction.
4
Synthesize the findings to determine the safest nursing action.
A second peripheral IV access site must be established.
This allows for the independent administration of the incompatible vancomycin without interrupting the life-saving continuous heparin infusion.

Anahtar Kavram

Safe administration of physically incompatible intravenous medications and prioritization of continuous high-alert infusions.
Soru 1833Soru →

A nurse is developing a plan of care for a client who is 48 hours postoperative following a right below-the-knee amputation (BKA). Which of the following nursing interventions should the nurse include to promote comfort, mobility, and healing? Select all that apply.

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Cevap: Position the client in a prone position for 20 to 30 minutes several times a day.; Wrap the residual limb with an elastic compression bandage using a figure-eight technique.; Instruct the client to perform active range-of-motion exercises on the unaffected extremities.

Cevap

The correct interventions are positioning the client prone several times a day, wrapping the limb with a figure-eight technique, and instructing the client to perform active range-of-motion exercises on unaffected extremities.
The correct interventions focus on preventing contractures, promoting circulation, and maintaining strength. Prone positioning actively stretches the hip flexors, preventing contractures. A figure-eight elastic wrap shapes the limb for a prosthesis while minimizing edema. Active range-of-motion exercises ensure the client retains the upper body and unaffected leg strength necessary for future transfers and ambulation.

Adım Adım Çözüm

1
Analyze the client's postoperative timeline (48 hours post-amputation).
The client has passed the initial 24-hour acute phase where edema management is the primary goal.
After 24 hours, nursing priorities must shift from managing acute swelling to preventing contractures and preparing the client for mobility.
2
Evaluate the positioning and mobility options for contracture prevention.
Prone positioning is identified as beneficial, while continuous elevation and prolonged sitting are harmful.
Maintaining the hip in a flexed position (via pillows or prolonged sitting) after 24 hours leads to hip flexion contractures, which can prevent the successful use of a prosthesis.
3
Review the principles of delegation and wound care for the residual limb.
Incision assessment cannot be delegated to assistive personnel, and the limb should be wrapped using a figure-eight method.
Assistive personnel lack the scope of practice to assess healing surgical wounds. A figure-eight wrap provides even compression without creating a tourniquet effect that restricts circulation.

Anahtar Kavram

Postoperative Care and Positioning for Lower Extremity Amputation
Soru 1834Soru →

An older adult client with a history of moderate dementia is admitted to the medical-surgical unit with dehydration and generalized weakness. The healthcare provider prescribes oral rehydration and the insertion of a peripheral intravenous (IV) catheter for fluid replacement. Which nursing intervention is most appropriate to include in the client's plan of care?

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Cevap: Offer the client small, frequent sips of preferred beverages using a high-contrast, brightly colored cup.

Cevap

The most appropriate intervention is to offer the client small, frequent sips of preferred beverages using a high-contrast, brightly colored cup.
Offering small, frequent sips in a brightly colored cup is the most appropriate basic care intervention. Clients with dementia often experience visual processing deficits and can become overwhelmed by large volumes of fluid or food at one time. A high-contrast cup improves visibility, and frequent, manageable prompting encourages adequate intake without causing distress.

Adım Adım Çözüm

1
Analyze the client's clinical presentation and specific needs.
The client is an older adult with moderate dementia, dehydration, and generalized weakness.
Understanding the client's baseline cognitive and physical status is essential for planning safe, individualized care.
2
Evaluate the proposed interventions against safety and delegation standards.
Delegating an assessment to a UAP, ignoring pathological dehydration, and using restraints without alternatives are identified as unsafe or inappropriate practices.
Nursing actions must adhere to legal guidelines, scope of practice, and evidence-based standards.
3
Select the intervention that promotes basic care and comfort while accommodating cognitive deficits.
Offering small, frequent sips in a high-contrast cup is selected as the correct action.
This approach actively treats the dehydration while adapting to the visual and cognitive needs typical of a client with dementia.

Anahtar Kavram

Promoting Nutrition and Hydration in Clients with Cognitive Impairment
Soru 1835Soru →

A nurse is caring for a client who is receiving an intravenous transfusion of packed red blood cells (PRBCs). Fifteen minutes after the infusion begins, the client becomes restless and reports sudden chills and severe lower back pain. In what order should the nurse perform the following interventions? Arrange the actions from first to last.

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Cevap

The correct sequence of actions is: stop the transfusion immediately, maintain the IV line with normal saline using completely new tubing, assess the client's vital signs, notify the healthcare provider and blood bank, and finally return the blood bag and tubing to the blood bank.
Acute hemolytic transfusion reactions present rapidly with chills, lower back pain, tachycardia, and hypotension. According to prioritization principles, the absolute priority is to stop the infusion to prevent further exposure to the incompatible antigen. Next, the nurse must ensure a patent IV line using a completely new tubing setup with normal saline to avoid flushing any residual blood into the client. Once the source of harm is stopped and vascular access is secured, the nurse performs a focused assessment to gather vital data. This assessment data is then communicated to the healthcare provider and the blood bank. Finally, the remaining blood product and all associated tubing are sent to the laboratory for required crossmatch and contamination testing.

Adım Adım Çözüm

1
Stop the transfusion immediately.
Further infusion of the reactive blood product is halted.
This is the most critical first step to minimize the volume of incompatible blood entering the client's circulation, halting the antigen-antibody reaction.
2
Maintain the intravenous line with normal saline using new tubing.
Intravenous access is safely preserved without administering more blood.
Vascular access is crucial for administering emergency medications or fluids. New tubing prevents the remaining blood in the old line from being flushed into the client.
3
Assess the client's vital signs and respiratory status.
Baseline data for the adverse reaction is established.
The nurse needs current physiological data to accurately report the client's hemodynamic and respiratory stability to the healthcare provider.
4
Notify the healthcare provider and the blood bank.
The medical team is informed and emergency interventions can be ordered.
The provider will direct the pharmacological management of the reaction, and the blood bank will document the event and prepare for investigation.
5
Return the blood bag and attached administration set to the blood bank.
The exact cause of the reaction can be formally investigated.
Laboratory analysis of the remaining blood and tubing is required to identify if there was a clerical error, incompatibility, or bacterial contamination.

Anahtar Kavram

Management of a suspected acute hemolytic transfusion reaction
Soru 1836Soru →

A client at 3434 weeks of gestation is receiving a continuous intravenous (IV) infusion of magnesium sulfate for the management of severe preeclampsia. During an hourly assessment, the nurse notes the client is difficult to arouse, the respiratory rate is 10 breaths/minute10\text{ breaths/minute}, deep tendon reflexes are absent, and urine output was 20 mL20\text{ mL} over the past hour. The nurse immediately stops the magnesium sulfate infusion. Which of the following actions is the highest priority?

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Cevap: Prepare to administer a slow intravenous push of calcium gluconate.

Cevap

The highest priority action is to prepare to administer a slow intravenous push of calcium gluconate.
The client is exhibiting classic, life-threatening signs of severe magnesium toxicity: central nervous system depression (difficult to arouse), respiratory depression (less than 12 breaths/minute12\text{ breaths/minute}), loss of deep tendon reflexes, and oliguria (less than 30 mL/hour30\text{ mL/hour}). Because the nurse has already taken the first critical step of stopping the infusion, the immediate priority is to administer the specific pharmacological antidote, calcium gluconate, via slow intravenous push to reverse the cardiopulmonary depression.

Adım Adım Çözüm

1
Analyze the client's assessment data.
The respiratory rate of 10 breaths/minute10\text{ breaths/minute}, absent deep tendon reflexes, and oliguria indicate severe central nervous system depression.
Magnesium sulfate is a potent central nervous system and respiratory depressant.
2
Diagnose the clinical emergency.
The findings confirm life-threatening magnesium sulfate toxicity.
Therapeutic levels of magnesium prevent seizures, but toxic levels cause loss of reflexes, followed by respiratory and cardiac arrest.
3
Determine the priority pharmacological intervention.
Since the infusion has already been stopped, the immediate next step is to reverse the toxicity using its specific antidote.
Calcium gluconate directly antagonizes the cardiopulmonary depressant effects of magnesium.
4
Evaluate safe parenteral administration guidelines.
The antidote must be administered as a slow IV push.
Rapid intravenous administration of calcium gluconate can trigger severe bradycardia or cardiac arrest.

Anahtar Kavram

Management of Magnesium Sulfate Toxicity
Tahmini Süre:1m 30s
Soru 1837Soru →

During the morning assessment of a 1212-day-old neonate, the nurse notes that a continuous intravenous (IV) infusion of Lactated Ringer's solution is actively running. The healthcare provider has just entered a new prescription for an intermittent IV infusion of ceftriaxone. Based on principles of pharmacological safety, which intervention is most appropriate?

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Cevap: Withhold the antibiotic and immediately contact the prescribing healthcare provider.

Cevap

The nurse must withhold the ceftriaxone and contact the healthcare provider immediately due to a severe contraindication.
The correct action is to withhold the medication and contact the provider. Ceftriaxone is contraindicated in neonates (≤28\le 28 days old) who are receiving calcium-containing intravenous fluids, such as Lactated Ringer's. The combination can form lethal calcium-ceftriaxone precipitates that deposit in the lungs and kidneys. The nurse must prioritize patient safety and request an alternative antibiotic or a different primary fluid.

Adım Adım Çözüm

1
Identify the patient population and currently prescribed therapies.
The patient is a neonate (1212 days old) actively receiving Lactated Ringer's (which contains calcium) and is newly prescribed IV ceftriaxone.
Age and concurrent IV fluids are critical factors in assessing pharmacological compatibility and potential adverse reactions.
2
Evaluate the compatibility of ceftriaxone and the concurrent IV fluid.
Ceftriaxone and calcium-containing solutions are absolutely contraindicated in neonates.
Co-administration can cause the formation of fatal calcium-ceftriaxone precipitates that deposit in the neonatal lungs and kidneys.
3
Determine the safest nursing intervention based on the assessment.
The nurse must withhold the medication and collaborate with the provider for a safe alternative.
Nurses have a legal and ethical duty to intercept unsafe prescriptions and prevent patient harm.

Anahtar Kavram

Ceftriaxone and Calcium Incompatibility in Neonates
Soru 1838Soru →

A nurse is preparing to draw a blood specimen for laboratory analysis from a client's multi-lumen central venous catheter. Continuous intravenous fluids are currently infusing through the other lumens. Arrange the following actions in the correct chronological sequence to safely obtain the blood sample.

Öğeleri doğru sıraya koymak için sürükleyin

Cevabı ve açıklamayı göster

Cevap

The correct sequence is to first pause all other infusions, then scrub the hub, flush to check patency, draw and discard the initial waste blood, draw the required lab specimen, and finally flush the line vigorously with normal saline.
Safely drawing blood from a central venous catheter requires a strict sequence to prevent infection, preserve catheter patency, and ensure accurate laboratory results. Pausing other infusions prevents sample contamination. Scrubbing the hub maintains asepsis. The initial flush verifies patency. Drawing a discard volume is critical to clear the catheter's dead space of flush solutions. After the pure specimen is collected, a large-volume pulsatile flush is required to clear all red blood cells and prevent catheter thrombosis.

Adım Adım Çözüm

1
Pause all continuous intravenous infusions on the other lumens.
Stops the flow of fluids that could mix with the blood return.
Ensures the laboratory specimen is not contaminated or diluted by infusing medications or fluids.
2
Scrub the needleless connector hub with an antimicrobial swab.
Disinfects the access point.
Reduces the risk of Central Line-Associated Bloodstream Infections (CLABSI).
3
Attach a syringe and flush with 0.9% sodium chloride.
Clears the immediate hub and verifies the catheter is not occluded.
Confirms line patency and ensures blood can be safely and easily aspirated.
4
Aspirate and discard 5 to 10 mL of blood.
Removes the fluid resting in the dead space of the catheter.
Prevents the laboratory specimen from being diluted with flush solution or residual medication.
5
Withdraw the required volume of blood for the specimen.
Collects an accurate, undiluted blood sample.
Fulfills the diagnostic laboratory order.
6
Flush the lumen vigorously with 10 to 20 mL of 0.9% sodium chloride.
Clears all residual red blood cells from the internal walls of the catheter.
Prevents the catheter from clotting off and maintains long-term patency.

Anahtar Kavram

Central Venous Catheter (CVC) Blood Sampling Protocol
Soru 1839Soru →

A 64-year-old client is admitted to the surgical unit 3 hours after undergoing a right-sided pneumonectomy for lung cancer. The client is awake, receiving oxygen at 2 L/min via nasal cannula, and reports moderate incisional pain. Which nursing intervention is essential to reduce the client's risk of physiological decompensation?

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Cevap: Position the client in a semi-Fowler's position or slightly turned toward the right side.

Cevap

Position the client in a semi-Fowler's position or slightly turned toward the right side.
After a pneumonectomy, the client has only one functioning lung. Positioning the client in a semi-Fowler's position or slightly turned toward the operative (right) side achieves two critical goals: it allows the remaining healthy left lung to fully expand for optimal gas exchange, and it utilizes gravity to keep fluid from the empty right hemothorax from leaking into the healthy lung, preventing severe respiratory compromise.

Adım Adım Çözüm

1
Identify the anatomical and physiological changes resulting from the procedure.
A right-sided pneumonectomy removes the entire right lung, leaving an empty pleural space (hemothorax) that will gradually fill with fluid, and leaving only the left lung for oxygenation.
Understanding the postoperative anatomy is required to anticipate physiological risks and prioritize care.
2
Determine the highest physiological risk to the client.
The greatest risk is respiratory failure caused by restricted expansion of the remaining lung or fluid shifting from the operative space into the healthy lung.
Risk reduction focuses on preventing the most immediately life-threatening complications.
3
Evaluate interventions to mitigate this risk.
Positioning the client on their back (semi-Fowler's) or toward the operative side (right side) uses gravity to keep fluid in the empty space and allows the left lung maximum room to expand.
Proper positioning is the primary non-pharmacological nursing intervention to maintain physiological integrity post-pneumonectomy.

Anahtar Kavram

Post-pneumonectomy positioning and physiological risk reduction
Soru 1840Soru →

A client with an unresolved high small bowel obstruction has experienced severe, recurrent emesis for the past 72 hours. During the morning assessment, the nurse observes a respiratory rate of 10 breaths per minute, generalized muscle weakness, and new-onset prominent U waves on the telemetry monitor. Based on these physiological changes, which arterial blood gas (ABG) profile should the nurse identify as most consistent with this client's condition?

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Cevap: pH 7.53, PaCO2 49 mm Hg, HCO3 35 mEq/L

Cevap

pH 7.53, PaCO2 49 mm Hg, HCO3 35 mEq/L
The correct arterial blood gas profile shows a pH of 7.53, PaCO2 of 49 mm Hg, and HCO3 of 35 mEq/L, which indicates a partially compensated metabolic alkalosis. Severe emesis leads to a profound loss of gastric hydrochloric acid, resulting in a primary metabolic alkalosis characterized by a high pH and high bicarbonate. The body attempts to compensate by hypoventilating (evidenced by the respiratory rate of 10 breaths per minute) to retain carbon dioxide, which acts as an acid, thereby pushing the pH back toward normal. This raises the PaCO2 level. Furthermore, the presence of muscle weakness and prominent U waves strongly indicates hypokalemia, which is deeply interlinked with metabolic alkalosis as potassium shifts into cells in exchange for hydrogen ions.

Adım Adım Çözüm

1
Analyze the primary pathophysiological event.
The client has experienced severe, recurrent emesis for 72 hours.
Vomiting causes a profound depletion of gastric acid (hydrochloric acid), leading directly to a primary metabolic alkalosis (elevated pH and elevated HCO3).
2
Evaluate the clinical signs for compensatory mechanisms and complications.
The client exhibits a slow respiratory rate (10 breaths/min), generalized muscle weakness, and prominent U waves.
Hypoventilation is the respiratory system's compensatory response to retain carbon dioxide (an acid) to lower the alkaline pH. Muscle weakness and U waves are classic manifestations of hypokalemia, a common complication of metabolic alkalosis due to transcellular shifts and renal potassium wasting.
3
Identify the expected ABG pattern.
The ABG must demonstrate a primary metabolic alkalosis with partial respiratory compensation.
This translates to an alkaline pH (> 7.45), an elevated bicarbonate level (> 26 mEq/L), and an elevated PaCO2 level (> 45 mm Hg).
4
Match the physiological pattern to the provided options.
The profile with pH 7.53, PaCO2 49 mm Hg, and HCO3 35 mEq/L is the only correct match.
This specific combination correctly reflects the primary alkaline state, the elevated bicarbonate from acid loss, and the elevated carbon dioxide resulting from compensatory hypoventilation.

Anahtar Kavram

Metabolic alkalosis secondary to severe emesis with compensatory hypoventilation
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Physiological Integrity Alıştırma Soruları — NCLEX-RN — Sayfa 92 | Examkin