Physiological Integrity

1960 questions

Question 1401Question →

A client with a deep vein thrombosis is receiving a continuous intravenous (IV) infusion of heparin through a single-lumen peripheral IV catheter. The healthcare provider prescribes a new order for intermittent IV vancomycin to treat a concurrent soft tissue infection. Which action by the nurse is most appropriate?

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Answer: Insert a second peripheral IV catheter to administer the vancomycin infusion.

Answer

The most appropriate action is to insert a second peripheral IV catheter to administer the vancomycin infusion.
The most appropriate action is to establish a second peripheral IV site. Heparin and vancomycin are physically incompatible and cannot be administered through the same tubing or Y-site, as they will form a visible precipitate. Furthermore, heparin is a critical, high-alert continuous infusion with a very short half-life. Pausing the heparin infusion for the 60 minutes required to safely administer vancomycin would cause the client's anticoagulation levels to drop into a subtherapeutic range, significantly increasing the risk of thrombus extension or pulmonary embolism. Therefore, a separate, dedicated intravenous line is the only safe solution.

Step-by-Step Solution

1
Analyze the prescribed therapies.
The client requires a continuous heparin infusion for a blood clot and an intermittent vancomycin infusion for an infection.
To identify potential conflicts in medication administration schedules or routes.
2
Evaluate intravenous access and medication compatibility.
The client has a single-lumen line. Heparin and vancomycin are physically incompatible at the Y-site.
To ensure safe administration and prevent potentially fatal precipitation in the IV tubing.
3
Determine the physiological impact of pausing the continuous therapy.
Pausing a continuous heparin drip for the duration of a vancomycin infusion (60+ minutes) is clinically unsafe.
Heparin has a short half-life; interrupting the infusion rapidly lowers therapeutic anticoagulation levels, risking clot expansion.
4
Select the safest nursing intervention.
Establishing a second peripheral IV site is required.
It allows simultaneous, safe administration of both medications without interruption or incompatibility issues.

Key Concept

Intravenous Medication Compatibility and Continuous Infusion Safety
Question 1402Question →

A client recovering from an ischemic stroke has residual dysphagia and requires assistance with oral intake. The nurse is planning interventions to prevent complications during feeding. Which of the following actions is the most appropriate for the nurse to implement?

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Answer: Maintain the client in a high-Fowler's position for 30 to 45 minutes following the completion of the meal.

Answer

The most appropriate action is to maintain the client in an upright, high-Fowler's position for 30 to 45 minutes after the meal.
Keeping the client in a high-Fowler's position (at least 90 degrees) for 30 to 45 minutes after eating uses gravity to facilitate the passage of food through the gastrointestinal tract and significantly reduces the risk of gastroesophageal reflux and subsequent aspiration.

Step-by-Step Solution

1
Identify the client's primary risk factor based on the clinical presentation.
The client has dysphagia following a stroke, placing them at high risk for aspiration pneumonia.
Recognizing the primary safety risk dictates which basic care and comfort interventions must be prioritized.
2
Select the intervention that directly mitigates the identified risk.
The nurse chooses to position the client upright after eating.
Maintaining a high-Fowler's position utilizes gravity to prevent the backflow of gastric contents, effectively protecting the airway.

Key Concept

Aspiration Precautions and Safe Positioning
Question 1403Question →

A nurse is caring for a client who is receiving a packed red blood cell (PRBC) transfusion. Fifteen minutes after the transfusion begins, the client reports sudden chills and lower back pain. In what order should the nurse perform the following actions to minimize the client's risk of further injury? Arrange the steps from first to last.

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Answer

The correct sequence is: Stop the transfusion, initiate a normal saline infusion with new tubing, assess vital signs, notify the provider and blood bank, and return the blood bag to the blood bank.
When a client exhibits signs of a blood transfusion reaction (such as sudden chills and lower back pain), the immediate priority is to stop the transfusion to prevent further exposure. Next, the nurse must maintain IV access by infusing normal saline through completely new tubing (to avoid flushing residual blood from the old tubing into the client). With safety measures in place, the nurse then assesses the client's vital signs and respiratory status to determine clinical stability. Following the assessment, the healthcare provider and blood bank are notified so that emergency treatments can be ordered. Finally, the blood bag and tubing are returned to the blood bank for testing.

Step-by-Step Solution

1
Identify the complication.
The client's chills and lower back pain indicate a potential acute hemolytic transfusion reaction.
Recognizing the signs of a severe reaction is necessary to initiate emergency risk reduction measures.
2
Determine the most critical immediate intervention.
The nurse must stop the blood transfusion first.
Halting the infusion of the offending agent immediately minimizes the amount of incompatible blood the client receives, directly reducing physiological risk.
3
Determine the subsequent sequence of actions to maintain safety and report the event.
The nurse changes the IV tubing to run normal saline, then assesses vital signs, notifies the provider, and sends the blood back.
New tubing prevents infusing residual blood. Vital signs guide further medical interventions ordered by the provider. Returning the blood allows for necessary laboratory analysis.

Key Concept

Blood Transfusion Reaction Protocol
Question 1404Question →

An older adult client with advanced Parkinson's disease is receiving continuous enteral nutrition via a percutaneous endoscopic gastrostomy (PEG) tube. The client has a stage 2 sacral pressure injury and is exhibiting new-onset restlessness. The nurse needs to lower the head of the bed to reposition the client to a lateral position for pressure relief. Which action is the priority for the nurse to implement?

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Answer: Pause the continuous enteral feeding pump before lowering the head of the bed.

Answer

Pause the continuous enteral feeding pump before lowering the head of the bed.
Pausing the continuous enteral feeding before lowering the head of the bed is a critical safety measure to prevent regurgitation and pulmonary aspiration. Even though the client has a percutaneous endoscopic gastrostomy (PEG) tube rather than a nasogastric tube, the risk of aspiration remains high if the client is placed in a flat position while the stomach is being filled. Furthermore, the nurse must personally assess the client's new-onset restlessness prior to proceeding with delegable basic care.

Step-by-Step Solution

1
Analyze the client's current interventions and the planned procedure.
The client is receiving continuous PEG tube feeding and needs the head of the bed lowered for repositioning.
Identifying the interaction between the feeding and the flat position highlights the primary physiological risk.
2
Evaluate the risk of aspiration associated with enteral feedings.
Lowering the head of the bed while a continuous feeding is infusing significantly increases the risk of regurgitation and pulmonary aspiration.
Even with a PEG tube, gastric contents can reflux if the gastroesophageal sphincter relaxes, making the supine or flat lateral position dangerous during active feeding.
3
Determine the required nursing intervention prior to the procedure.
The nurse must pause the enteral feeding pump before lowering the bed to ensure airway safety.
Airway protection and aspiration prevention take priority in basic care and mobility procedures.

Key Concept

Aspiration Prevention during Enteral Feeding and Positioning
Question 1405Question →

A rapid response team transfers an adult client with severe sepsis to the critical care unit. The client has a newly established multilumen central venous catheter (CVC) and is receiving a continuous intravenous (IV) infusion of norepinephrine. To safely manage this pharmacological therapy and the client's hemodynamic status, which interventions should the nurse implement? (Select all that apply.)

Select all that apply

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Answer: Titrate the continuous infusion rate to maintain a mean arterial pressure (MAP) of at least 65 mm Hg.; Evaluate the client's distal extremities frequently for changes in capillary refill, pulse quality, and skin temperature.; Monitor the client's electrocardiogram (ECG) continuously for the development of medication-induced tachyarrhythmias.

Answer

The correct interventions are titrating the infusion to maintain a MAP of at least 65 mm Hg, evaluating distal extremities for adequate perfusion, and continuously monitoring the ECG for tachyarrhythmias.
Norepinephrine is a potent alpha- and beta-adrenergic agonist used in distributive shock to increase systemic vascular resistance and cardiac output. The therapeutic goal is to maintain a mean arterial pressure (MAP) of 65 mm Hg or greater to ensure adequate perfusion of vital organs. Because of its potent vasoconstrictive effects, peripheral ischemia is a significant risk, necessitating frequent evaluation of capillary refill, pulses, and skin temperature. Additionally, its beta-1 stimulating properties increase myocardial oxygen demand and the risk of potentially life-threatening tachyarrhythmias, making continuous ECG monitoring essential.

Step-by-Step Solution

1
Identify the primary therapeutic goal of the norepinephrine infusion.
The goal is to increase systemic vascular resistance and cardiac output.
Maintaining a MAP of at least 65 mm Hg is the established standard to ensure blood flow reaches vital organs during distributive shock states.
2
Assess potential adverse physiological effects of the pharmacological therapy.
Norepinephrine's alpha-1 and beta-1 agonism causes intense peripheral vasoconstriction and cardiac stimulation.
This necessitates frequent monitoring of peripheral extremities for ischemia and continuous ECG monitoring for tachyarrhythmias to prevent severe complications.
3
Evaluate the incorrect interventions against principles of safe parenteral therapy and shock management.
Decreased urine output, unverified IV co-administration, and high Fowler's positioning are identified as unsafe or incorrect.
Inadequate urine output indicates worsening shock. Co-administration of IV meds requires compatibility verification to prevent precipitation or bolusing of the pressor. High Fowler's positioning exacerbates hypotension by reducing venous return.

Key Concept

Safe administration, hemodynamic targeting, and continuous monitoring of vasoactive parenteral therapies in the critically ill client.
Question 1406Question →

A nurse is preparing to collect a blood specimen for a comprehensive metabolic panel (CMP) from a patient's multi-lumen central venous catheter (CVC). The patient is currently receiving continuous total parenteral nutrition (TPN) through the distal lumen, and the nurse plans to use the proximal lumen for the blood draw. Arrange the following actions in the correct sequential order to ensure accurate laboratory results and maintain catheter patency.

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Answer

The correct sequence is: Pause the TPN infusion, scrub the hub, flush and withdraw the waste sample, draw the required specimen, flush the line vigorously, and finally restart the TPN infusion.
Accurate blood sampling from a multi-lumen central venous catheter requires a strict aseptic and procedural sequence to prevent diagnostic contamination and line occlusion. Pausing continuous infusions (like TPN) prevents false lab alterations. Scrubbing the hub ensures asepsis. Wasting the initial blood clears the catheter dead space. Drawing the sample provides the clean specimen. Vigorously flushing clears viscous red blood cells to prevent clotting. Finally, restarting the TPN ensures therapeutic continuity.

Step-by-Step Solution

1
Pause continuous infusions
TPN is temporarily stopped
Prevents artificial elevation of lab values (e.g., severe hyperglycemia in the sample) due to contamination from the infusing solution.
2
Scrub the hub
Needleless connector is disinfected
Reduces the risk of Central Line-Associated Bloodstream Infections (CLABSI).
3
Flush and discard waste
Catheter dead space is cleared
Removes residual flush fluid and medication that would otherwise dilute or contaminate the diagnostic sample.
4
Draw required specimen
Pure blood sample is obtained
Provides the laboratory with an accurate, systemic blood sample for the CMP.
5
Flush with pulsatile technique
Blood is completely cleared from the lumen
Creates turbulence to prevent fibrin buildup, clotting, and long-term catheter occlusion.
6
Restart infusions
TPN therapy resumes
Ensures the patient continues to receive their prescribed, necessary parenteral nutrition without prolonged interruption.

Key Concept

Central Venous Catheter Blood Draw and Parenteral Nutrition Management
Estimated Time:2m 0s
Question 1407Question →

Appropriate client positioning is crucial for minimizing physiological risks during and after clinical interventions. Which clinical situations are correctly paired with their required therapeutic position? Select all that apply.

Select all that apply

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Answer: Administering a cleansing enema: Left lateral Sims position.; Assisting during a thoracentesis procedure: Sitting upright while leaning forward over a supported bedside table.; Monitoring immediately after a thyroidectomy: Semi-Fowler's alignment avoiding neck hyperextension.

Answer

The correctly paired interventions are placing the client in a left lateral Sims position for an enema, sitting upright and leaning forward for a thoracentesis, and maintaining a semi-Fowler's position after a thyroidectomy.
The left lateral Sims position optimally utilizes gravity for enema administration. Sitting upright and leaning forward widens the intercostal spaces to facilitate a safe thoracentesis and prevent lung puncture. A semi-Fowler's position after a thyroidectomy promotes venous return to decrease edema around the airway while keeping the neck neutral to avoid straining the suture line.

Step-by-Step Solution

1
Analyze the goal of minimizing physiological risks during clinical interventions.
Recognize that the question requires identifying which client positions are therapeutically correct and safe for the given procedures.
Correct positioning prevents severe complications such as aspiration, shock exacerbation, or respiratory distress.
2
Evaluate the correctness of the safe positions.
Identify that the Sims position for an enema, sitting forward for thoracentesis, and semi-Fowler's for thyroidectomy are all standard, safe practices.
These positions align with anatomical needs, such as expanding intercostal spaces or promoting venous return without straining surgical incisions.
3
Identify the contraindicated positions.
Determine that a high Fowler's position worsens hypovolemic shock and a flat supine position increases aspiration risk during tube feedings.
Recognizing unsafe practices is essential for the reduction of risk potential and ensuring patient safety.

Key Concept

Therapeutic Client Positioning for Risk Reduction
Question 1408Question →

A 45-year-old client arrives at the surgical step-down unit directly from the post-anesthesia care unit following a total thyroidectomy for hyperthyroidism. To effectively reduce the risk of postoperative complications, which actions are essential for the nurse to implement? Select all that apply.

Select all that apply

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Answer: Ensure a tracheostomy tray and functioning suction equipment are immediately accessible at the bedside.; Assess for reports of numbness around the mouth and check for a positive Chvostek's sign.; Promptly report the development of high-pitched, harsh inspiratory sounds to the healthcare provider.

Answer

The essential actions are to ensure emergency airway equipment is at the bedside, assess for hypocalcemia (circumoral numbness and Chvostek's sign), and immediately report any signs of stridor (harsh inspiratory sounds) to the healthcare provider.
The correct interventions directly target the most severe and common risks following a total thyroidectomy: airway compromise and hypocalcemia. Because postoperative swelling or a rapidly expanding hematoma can quickly occlude the airway, having suction and an emergency tracheostomy tray readily available is mandatory. Furthermore, the development of stridor indicates critical airway narrowing and demands immediate reporting. Finally, because the parathyroid glands regulate calcium and are anatomically adjacent to the thyroid, they are vulnerable to injury or accidental excision, making frequent assessments for hypocalcemia (e.g., Chvostek's sign, perioral numbness) essential.

Step-by-Step Solution

1
Analyze the anatomical risks associated with the surgical procedure.
A total thyroidectomy involves the neck, creating high risks for airway compression from edema or bleeding, and accidental parathyroid gland removal.
Identifying the physiological structures involved dictates the priority complications to monitor.
2
Identify interventions that protect the respiratory system.
Maintaining bedside tracheostomy/suction equipment and vigilantly monitoring for stridor are selected as correct actions.
Airway patency is the highest priority (ABCs). Stridor is a late and dangerous sign of obstruction.
3
Determine the metabolic risks and corresponding assessments.
Assessing for hypocalcemia via perioral tingling and Chvostek's sign is selected as a correct action.
Parathyroid injury leads to rapid calcium depletion, risking tetany and seizures.
4
Evaluate the remaining options against safety and delegation standards.
Supine positioning and delegating post-operative complication assessments to UAP are identified as unsafe practices.
Supine positioning exacerbates airway edema, and assessing for hemorrhage requires an RN's clinical judgment.

Key Concept

Postoperative Thyroidectomy Complication Management
Estimated Time:1m 0s
Question 1409Question →

A nurse is instructing a client with left-sided hemiparesis on how to safely descend stairs using a quad cane. The client holds the cane in the right hand. In what order should the nurse instruct the client to perform the following actions to step down?

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Answer

The correct sequence for descending stairs with a cane is to first stabilize weight on the strong leg, lower the cane, move the weak leg down to the cane, shift weight to the cane and weak leg, and finally bring the strong leg down to join them.
The correct sequence follows the standard principle of 'down with the bad' for descending stairs with an assistive device. The sequence prioritizes stability by shifting weight to the strong side and moving the cane first to establish a new base of support. The affected (weak) leg is then lowered while the unaffected (strong) leg remains safely on the upper step to bear the body weight. Only after the weight is safely distributed between the cane and the affected leg on the lower step does the unaffected leg step down. This sequence minimizes the risk of the weak leg buckling under the full body weight.

Step-by-Step Solution

1
Shift body weight entirely to the unaffected right leg.
The body is stabilized, allowing movement of the cane and affected leg.
Ensures a secure base of support before initiating the transfer of assistive devices.
2
Advance the quad cane down to the next step.
The cane is securely positioned on the lower level.
Provides a wide base of support on the new level before any vulnerable movement occurs.
3
Lower the affected left leg down to the step with the cane.
The weak leg is safely moved to the lower step.
The weak leg is moved while maximum support is provided by the strong leg (above) and the cane (below).
4
Transfer body weight to the cane and the affected left leg.
The strong leg is freed to move.
The weight must be shifted forward and down onto the established supports to allow the final step.
5
Step down with the unaffected right leg to the same lower step.
Both feet and the cane are now secure on the lower step.
Completes the descent of one step while minimizing the time the weak leg bears independent weight.

Key Concept

Safe stair descent using a cane ('Down with the bad' principle)
Estimated Time:1m 30s
Question 1410Question →

During the admission assessment of a client with severe gastroenteritis, the laboratory reports a critically low serum potassium level of 2.2 mEq/L2.2\text{ mEq/L}. The electronic health record displays a stat prescription for 40 mEq40\text{ mEq} of potassium chloride in 100 mL100\text{ mL} of 0.9%0.9\% sodium chloride, to be infused intravenously over 60 minutes60\text{ minutes}. The client is connected to continuous cardiac monitoring and has a 20-gauge peripheral intravenous catheter in the right forearm. Which clinical action should the nurse take next?

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Answer: Contact the prescribing provider to request a central venous access device or a reduced infusion rate.

Answer

The nurse must contact the prescribing provider to question the prescription because infusing 40 mEq/hr40\text{ mEq/hr} of potassium chloride through a peripheral line is unsafe and requires central venous access.
Intravenous potassium chloride is a high-alert vesicant medication. To prevent severe vein irritation, phlebitis, and cardiac arrhythmias, the maximum recommended peripheral infusion rate is 10 mEq/hr10\text{ mEq/hr} (up to 20 mEq/hr20\text{ mEq/hr} in some facilities with central monitoring, but rarely higher peripherally). Rates of 40 mEq/hr40\text{ mEq/hr} require administration through a central venous catheter alongside continuous cardiac monitoring. Because the client only has a 20-gauge peripheral line, the nurse must intervene and question the order to prevent patient harm.

Step-by-Step Solution

1
Analyze the prescribed medication dose, route, and rate against established safety parameters for the drug.
The prescription is for 40 mEq40\text{ mEq} of potassium chloride to infuse over 1 hour (40 mEq/hr40\text{ mEq/hr}) via a peripheral intravenous line.
Intravenous potassium chloride is a high-alert medication with strict administration guidelines to prevent tissue damage and cardiac arrest.
2
Evaluate the risks associated with the prescribed peripheral infusion rate.
Infusing potassium chloride at 40 mEq/hr40\text{ mEq/hr} through a peripheral vein exceeds the maximum safe peripheral rate of 10 mEq/hr10\text{ mEq/hr}.
Potassium chloride is a severe vesicant. High concentrations require larger central vessels with rapid blood flow to ensure immediate hemodilution and prevent chemical phlebitis or necrosis.
3
Determine the priority nursing intervention based on the identified safety risk.
The nurse must withhold the infusion and advocate for the client by requesting either a central venous catheter or a slower infusion rate.
Nurses have a legal and ethical duty to question and halt unsafe medication orders before administration.

Key Concept

Safe administration parameters and vascular access requirements for high-alert parenteral medications (Potassium Chloride)
Question 1411Question →

A nurse is continuously monitoring a client who is receiving an intravenous infusion of doxorubicin, a known vesicant, via a peripheral catheter. The client suddenly reports severe burning pain at the insertion site, and the nurse observes localized swelling and erythema. To reduce the risk of severe tissue necrosis, in what order should the nurse perform the following interventions?

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Answer

The correct sequence is to first stop the infusion, then disconnect the IV tubing, aspirate residual medication from the catheter, remove the IV catheter, and finally elevate the extremity and apply a cold compress.
The sequence follows the standard oncology protocol for vesicant extravasation: immediately stop the infusion to prevent further harm, disconnect the line, leave the cannula in place temporarily to aspirate residual drug from the subcutaneous pocket, remove the cannula, and apply appropriate thermal therapy (cold for doxorubicin) to localize the drug.

Step-by-Step Solution

1
Stop the vesicant infusion immediately.
Halts further exposure of the subcutaneous tissue to the cytotoxic agent.
The priority in any extravasation event is to mitigate further physiological harm by stopping the source.
2
Disconnect the IV tubing from the catheter.
Separates the primary medication bag and tubing from the client.
Prevents accidental delivery of additional medication remaining in the administration set.
3
Attach a syringe and aspirate blood/medication from the hub.
Extracts residual doxorubicin from the catheter and the immediate subcutaneous pocket.
Reduces the total vesicant volume in the localized tissue, which directly reduces the extent of subsequent necrosis.
4
Remove the peripheral IV catheter.
Discontinues the compromised access site.
The cannula is removed only after aspiration to prevent tracking the vesicant upward through the tissue layers upon removal.
5
Elevate the extremity and apply a cold compress.
Causes local vasoconstriction.
Cold therapy localizes the doxorubicin (an anthracycline) and reduces cellular uptake, containing tissue damage.

Key Concept

Management of Vesicant Extravasation to Reduce Tissue Necrosis Risk
Question 1412Question →

A nurse is assessing a client who is 4 hours postoperative following an abdominal hysterectomy. Which of the following findings is the earliest indicator that the client may be developing hemorrhagic shock?

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Answer: An increase in heart rate from 78 to 114 beats per minute

Answer

An increase in heart rate from 78 to 114 beats per minute is the earliest indicator of hemorrhagic shock.
An increasing heart rate (tachycardia) is the body's initial compensatory response to a decrease in intravascular volume. It is the most reliable early indicator of impending hemorrhagic shock, occurring before a drop in blood pressure or changes in mental status.

Step-by-Step Solution

1
Analyze the client's clinical context and postoperative risk factors.
The client recently underwent major abdominal surgery and is at risk for internal bleeding and hypovolemia.
Identifying the primary risk guides the nurse's focused assessment for potential complications.
2
Recall the physiological progression of hypovolemic shock.
In the early stages, the sympathetic nervous system activates compensatory mechanisms to maintain adequate tissue perfusion before blood pressure drops.
Understanding the timeline of shock helps distinguish early warning signs from late, decompensated signs.
3
Identify the earliest measurable compensatory sign from the given options.
An increased heart rate (tachycardia) is the initial cardiovascular response to decreased blood volume.
The heart beats faster to compensate for the lower stroke volume in an attempt to maintain an adequate cardiac output.

Key Concept

Early Indicators of Hypovolemic Shock
Question 1413Question →

A nurse is planning care for a client who is 22 days postoperative following a right total hip arthroplasty (posterior approach). Which positioning intervention should the nurse implement to prevent surgical complications?

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Answer: Maintain an abductor pillow between the client's legs while the client is supine.

Answer

Maintain an abductor pillow between the client's legs while the client is supine.
Following a total hip arthroplasty with a posterior approach, the client is at high risk for prosthetic dislocation if the hip is placed in adduction, internal rotation, or flexion of 90∘90^\circ or greater. Maintaining an abductor pillow between the legs while supine or turning effectively prevents adduction and internal rotation, thereby protecting the surgical joint.

Step-by-Step Solution

1
Identify the surgical procedure and approach.
The client had a right total hip arthroplasty using a posterior approach.
The surgical approach determines the specific movement restrictions needed to prevent joint dislocation.
2
Recall the standard hip precautions for a posterior approach.
Precautions include avoiding hip flexion of 90∘90^\circ or greater, avoiding adduction across the midline, and avoiding internal rotation.
These positions place extreme stress on the posterior capsule and can cause the new femoral head to dislocate posteriorly.
3
Evaluate the given positioning interventions against the precautions.
Using an abductor pillow prevents adduction and internal rotation, which correctly aligns with the precautions.
The other options involve hip flexion of 90∘90^\circ or more (elevating the head of the bed, bending to put on socks) or internal rotation, all of which are strictly contraindicated.

Key Concept

Total Hip Arthroplasty (Posterior Approach) Precautions
Question 1414Question →

A nurse is preparing to obtain a sterile urine specimen for culture and sensitivity from a client who has a continuous indwelling urinary catheter. Arrange the following steps in the correct order to minimize the risk of infection and ensure an accurate sample.

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Answer

The correct sequence is: Clamp the drainage tubing, cleanse the aspiration port, attach a syringe to aspirate urine, transfer the urine to a sterile container, and finally unclamp the drainage tubing.
To obtain a sterile urine specimen from a closed indwelling catheter system, the nurse must first clamp the tubing below the port to allow fresh urine to collect. Next, the port must be cleansed with an antiseptic to maintain sterility. The nurse then uses a sterile syringe to aspirate the urine, transfers it to a sterile container, and finally unclamps the tubing to allow continuous drainage to resume.

Step-by-Step Solution

1
Clamp the drainage tubing below the aspiration port
Fresh urine accumulates in the tubing above the clamp.
Urine in the drainage bag is not sterile and may have been sitting for hours. Clamping ensures a fresh sample is collected from the bladder.
2
Cleanse the aspiration port with an antiseptic wipe
The surface of the port is disinfected.
This prevents the introduction of microorganisms from the port surface into the closed drainage system.
3
Attach a sterile syringe and withdraw the urine sample
A sterile sample of fresh urine is obtained.
Using a sterile syringe maintains the sterility of both the closed catheter system and the urine specimen.
4
Transfer the urine into a sterile specimen container
The sample is secured for laboratory transport.
A sterile container is required for a culture and sensitivity test to accurately identify any urinary pathogens.
5
Unclamp the drainage tubing
Continuous urinary drainage is restored.
Failing to unclamp the tubing can cause bladder distention, discomfort, and potentially harmful retrograde flow of urine.

Key Concept

Maintaining a sterile closed drainage system when obtaining a urine culture from an indwelling catheter reduces the risk of catheter-associated urinary tract infections (CAUTI) and ensures diagnostic accuracy.
Question 1415Question →

A patient with septic shock, weighing 165 lbs165\text{ lbs}, is receiving a continuous intravenous infusion of norepinephrine via a dedicated central venous catheter to minimize the risk of extravasation. The current infusion rate delivers 0.05 mcg/kg/min0.05\text{ mcg/kg/min}. The patient's mean arterial pressure (MAP) is currently 58 mmHg58\text{ mmHg}. The hemodynamic titration protocol prescribes increasing the dose by 0.02 mcg/kg/min0.02\text{ mcg/kg/min} every 5 minutes5\text{ minutes} until the MAP is ≥65 mmHg\ge 65\text{ mmHg}. The medication is supplied as 4 mg4\text{ mg} of norepinephrine in 250 mL250\text{ mL} of 5% dextrose in water (D5W). The nurse prepares to initiate the first titration increment. What should the new infusion pump rate be set at in mL/hr\text{mL/hr}? (Round to the nearest tenth)

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Answer: 19.7

Answer

19.7
To find the correct infusion rate, the nurse must first convert the patient's weight to kilograms (75 kg75\text{ kg}) and determine the new dose rate (0.07 mcg/kg/min0.07\text{ mcg/kg/min}). By multiplying the dose by the weight and 60 minutes60\text{ minutes}, the total hourly requirement is found (315 mcg/hr315\text{ mcg/hr}). Dividing this by the medication concentration (16 mcg/mL16\text{ mcg/mL}) yields 19.6875 mL/hr19.6875\text{ mL/hr}, correctly rounded to 19.7 mL/hr19.7\text{ mL/hr}.

Step-by-Step Solution

1
Convert the patient's weight from pounds to kilograms.
165÷2.2=75 kg165 \div 2.2 = 75\text{ kg}
Weight-based critical care medication dosing requires metric units.
2
Calculate the new required dose according to the titration protocol.
0.05 mcg/kg/min+0.02 mcg/kg/min=0.07 mcg/kg/min0.05\text{ mcg/kg/min} + 0.02\text{ mcg/kg/min} = 0.07\text{ mcg/kg/min}
The MAP is subtherapeutic (58 mmHg58\text{ mmHg}), so the infusion must be increased by the specified increment.
3
Calculate the total required micrograms per hour.
0.07 mcg/kg/min×75 kg×60 min/hr=315 mcg/hr0.07\text{ mcg/kg/min} \times 75\text{ kg} \times 60\text{ min/hr} = 315\text{ mcg/hr}
Infusion pumps are programmed in mL/hr\text{mL/hr}, so the time unit must be converted from minutes to hours, and the weight factored in.
4
Determine the concentration of the supplied medication in mcg/mL\text{mcg/mL}.
4 mg=4000 mcg4\text{ mg} = 4000\text{ mcg}; 4000 mcg÷250 mL=16 mcg/mL4000\text{ mcg} \div 250\text{ mL} = 16\text{ mcg/mL}
The prescribed dose is in micrograms, so the medication supply must be converted to matching units to find the volume.
5
Calculate the final infusion rate in mL/hr\text{mL/hr} and round to the nearest tenth.
315 mcg/hr÷16 mcg/mL=19.6875 mL/hr315\text{ mcg/hr} \div 16\text{ mcg/mL} = 19.6875\text{ mL/hr}, which rounds to 19.7 mL/hr19.7\text{ mL/hr}
Dividing the hourly dose by the concentration yields the volume per hour required for the pump setting.

Key Concept

Weight-Based Continuous IV Infusion Titration
Question 1416Question →

A nurse is caring for a client with decompensated heart failure who weighs 187 lb187\text{ lb}. The healthcare provider prescribes a continuous IV infusion of dobutamine at 7.5 mcg/kg/min7.5\text{ mcg/kg/min}. The pharmacy dispenses a premixed IV bag containing dobutamine 500 mg500\text{ mg} in 250 mL250\text{ mL} of 5% dextrose in water5\%\text{ dextrose in water}. At what rate, in mL/hr\text{mL/hr}, should the nurse set the IV infusion pump? (Record your answer to the nearest tenth.)

Show answer & explanation

Answer: 19.1

Answer

19.1
The correct pump rate is determined by first calculating the client's total hourly medication requirement in milligrams, and then dividing that amount by the concentration of the prepared intravenous solution to find the volume needed per hour.

Step-by-Step Solution

1
Convert the client's weight to kilograms
85 kg85\text{ kg}
Weight-based dosing formulas require the weight in kilograms (187÷2.2=85187 \div 2.2 = 85)
2
Calculate the total dose per minute
637.5 mcg/min637.5\text{ mcg/min}
Multiply the client's weight by the prescribed dose (85×7.5=637.585 \times 7.5 = 637.5)
3
Convert the minute dose to an hourly dose
38,250 mcg/hr38,250\text{ mcg/hr}
Infusion pumps are programmed in mL/hr, so the dose must be per hour (637.5×60=38,250637.5 \times 60 = 38,250)
4
Convert micrograms to milligrams
38.25 mg/hr38.25\text{ mg/hr}
The dispensed medication is measured in milligrams, so units must match (38,250÷1,000=38.2538,250 \div 1,000 = 38.25)
5
Determine the concentration of the IV solution
2 mg/mL2\text{ mg/mL}
Divide the total milligrams by the total volume in the bag (500÷250=2500 \div 250 = 2)
6
Calculate the final infusion rate
19.125 mL/hr19.125\text{ mL/hr}
Divide the hourly dose by the fluid concentration (38.25÷2=19.12538.25 \div 2 = 19.125)
7
Round the final answer
19.1 mL/hr19.1\text{ mL/hr}
The question requires rounding to the nearest tenth

Key Concept

Weight-based continuous intravenous infusion rate calculation
Estimated Time:2m 0s
Question 1417Question →

A client receiving a transfusion of packed red blood cells (PRBCs) suddenly reports severe lower back pain, chills, and shortness of breath. Suspecting an acute hemolytic transfusion reaction, the nurse must intervene immediately. Arrange the following nursing actions in the correct chronological sequence.

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct chronological sequence is to first stop the transfusion, then maintain IV access with normal saline using new tubing, assess the client's current status, notify the healthcare provider and blood bank, and finally return the blood products for analysis.
In the event of a transfusion reaction, the absolute highest priority is to stop the offending agent (the blood product). Second, IV access must be maintained for emergency interventions, but this MUST be done with completely new tubing to avoid flushing residual blood into the client. Once the client is protected from further immediate harm, the nurse assesses vital signs and cardiopulmonary status to provide accurate data to the healthcare provider. With assessment findings ready, the provider and blood bank are notified. Finally, the remaining blood product and tubing are sent to the laboratory for investigation.

Step-by-Step Solution

1
Stop the blood transfusion immediately.
The client receives no further incompatible or reactive blood product.
Halting the infusion is the most critical initial action to minimize the severity of a hemolytic or allergic reaction.
2
Disconnect the blood administration set and maintain IV access with 0.9% sodium chloride through new IV tubing.
A patent intravenous line is secured for administering emergency medications.
Flushing the existing tubing would force more incompatible blood into the client; therefore, a completely new fluid administration set must be attached to the catheter hub.
3
Assess the client's vital signs and cardiopulmonary status.
The nurse obtains essential clinical data reflecting the severity of the transfusion reaction.
Immediate assessment provides the baseline data necessary for the healthcare provider to prescribe targeted emergency interventions.
4
Notify the healthcare provider and the blood bank.
The medical team is alerted, and emergency medical orders are obtained.
The provider needs the assessment data to order necessary treatments (e.g., vasopressors, antihistamines, fluids), and the blood bank must initiate their formal investigation.
5
Return the blood bag, tubing, and labels to the blood bank.
The blood bank receives the physical evidence of the transfusion.
Laboratory analysis of the returned product helps determine the definitive cause of the adverse reaction.

Key Concept

Nursing Management of Acute Transfusion Reactions
Question 1418Question →

An older adult client with advanced Alzheimer's disease is receiving acute care for pneumonia. The client becomes intensely agitated and physically combative during attempts to provide morning hygiene. Which actions should the nurse include in the client's care plan to safely promote basic hygiene and comfort? (Select all that apply.)

Select all that apply

Show answer & explanation

Answer: Keep the client covered with a warm bath blanket and expose only the specific body part being washed; Introduce a calm environment by playing the client's favorite soothing music during the procedure; Delay washing the client's hair until the end of the bath or schedule it for a completely separate time

Answer

The correct actions are keeping the client covered with a warm bath blanket, playing soothing music, and delaying hair washing until the end of the bath or a separate time.
Clients with advanced dementia often experience sensory overload and fear during personal care. Promoting basic care and comfort involves reducing these stressors. Using a warm bath blanket and exposing only one area at a time prevents chilling and preserves dignity. Washing the hair is often highly distressing due to water on the face and manipulation of the head, so it should be done last or at a separate time to avoid escalating agitation early in the process. Playing familiar, soothing music provides a non-pharmacologic calming effect, distracting the client and creating a more therapeutic environment.

Step-by-Step Solution

1
Identify the primary clinical problem and goal.
The client has advanced dementia and experiences severe agitation during hygiene care. The goal is to provide basic care and comfort using safe, non-pharmacological interventions.
Understanding the root cause of the agitation (sensory overload, fear) dictates which nursing interventions will be effective.
2
Evaluate the proposed comfort and hygiene interventions.
Covering the client with a bath blanket, delaying hair washing, and playing soothing music are selected as appropriate measures.
These interventions minimize sensory overload, preserve dignity, and provide non-pharmacological comfort without violating safety protocols.
3
Identify and reject unsafe or inappropriate actions.
Restraints for routine care, delegating assessments to UAP, and dismissing pathological agitation as normal aging are rejected.
These actions violate safety guidelines, scope of practice rules, and fundamental gerontological nursing principles.

Key Concept

Basic Care and Comfort for clients with cognitive impairment focuses on non-pharmacological interventions to reduce sensory overload, preserve dignity, and prevent defensive behaviors.
Question 1419Question →

An older adult client with a history of mild dementia has just returned to the unit following a diagnostic lumbar puncture. The client is restless, repeatedly attempts to sit up in bed, and verbally reports a throbbing headache. Which of the following basic care and comfort interventions should the nurse implement? (Select all that apply.)

Select all that apply

Show answer & explanation

Answer: Maintain the client in a flat, supine position for the prescribed duration of 4 to 6 hours.; Encourage liberal oral intake of fluids, specifically offering caffeinated beverages if not contraindicated.

Answer

The appropriate interventions are to maintain the client in a flat, supine position and to encourage oral fluid intake, particularly caffeinated beverages.
Following a lumbar puncture, maintaining a flat, supine position minimizes cerebrospinal fluid (CSF) leakage from the dural puncture site, which is the primary cause of a post-dural puncture headache. Additionally, encouraging fluid intake helps replenish CSF volume. Caffeine is particularly effective as a non-pharmacologic intervention because its cerebral vasoconstrictive properties help relieve the vascular component of the headache.

Step-by-Step Solution

1
Identify the primary complication the client is experiencing.
The client has a post-dural puncture headache, evidenced by the throbbing pain and the recent lumbar puncture.
Understanding the pathology of the headache (CSF leakage) dictates the appropriate comfort and positioning measures.
2
Select appropriate positioning interventions to minimize complications.
The client must remain flat and supine.
A flat position reduces gravitational pressure on the dural tear, limiting further CSF leakage.
3
Select appropriate dietary and hydration comfort measures.
Oral hydration and caffeine administration should be encouraged.
Fluids help replace lost CSF, while caffeine promotes cerebral vasoconstriction, directly counteracting the vasodilation that causes the headache.
4
Eliminate inappropriate or unsafe nursing actions.
Avoid elevating the head, inappropriately delegating assessments, applying unjustified restraints, or ignoring acute behavioral changes.
These actions represent critical safety violations in basic care, delegation, and restraint protocols.

Key Concept

Basic care and comfort following a lumbar puncture require maintaining a flat position to prevent CSF leakage, promoting hydration (often with caffeine) to manage headaches, and ensuring rigorous safety monitoring without relying on inappropriate delegation or premature restraints.
Question 1420Question →

A nurse is establishing a basic care regimen for an older adult client who is bedbound with right-sided flaccid paralysis and altered sensory perception due to a recent traumatic brain injury. To optimize comfort, prevent contractures, and protect skin integrity, which combination of nursing actions is most appropriate?

Show answer & explanation

Answer: Position the client in a 30-degree lateral incline, support the paralyzed right arm on a pillow, and place a trochanter roll alongside the right thigh.

Answer

The most appropriate combination is positioning the client in a 30-degree lateral incline, supporting the paralyzed arm on a pillow, and utilizing a trochanter roll alongside the thigh.
The 30-degree lateral position is the evidence-based standard for offloading pressure from the sacrum and greater trochanter, minimizing the risk of pressure injuries. Supporting the flaccid arm on a pillow maintains joint alignment and prevents shoulder subluxation, which is a significant risk due to the lack of muscle tone. A trochanter roll placed alongside the outer thigh prevents external rotation of the hip joint, maintaining functional anatomical alignment.

Step-by-Step Solution

1
Evaluate the risks associated with right-sided flaccid paralysis and immobility.
Identified high risk for pressure injuries, shoulder subluxation, and external hip rotation.
Flaccid muscles cannot provide structural support to joints, and immobility creates localized pressure points.
2
Determine the optimal position for pressure relief and joint alignment.
Selected the 30-degree lateral incline over a 90-degree side-lying or strict supine position.
The 30-degree lateral position avoids placing the client's body weight directly on the bony prominence of the greater trochanter or sacrum.
3
Identify specific supportive devices needed for the flaccid extremities.
Incorporated a pillow for the right arm and a trochanter roll for the right leg.
The pillow prevents gravity from dislocating the shoulder joint, and the trochanter roll prevents the weakened leg from rolling outward.

Key Concept

Basic Care and Comfort: Safe Positioning and Assistive Devices
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