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Question 3021Question →

A client diagnosed with bacterial pneumonia is prescribed intravenous ceftriaxone. While completing the admission history, the nurse discovers that the client has a documented history of anaphylaxis following amoxicillin administration. Which action is the priority for the nurse to take?

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Answer: Withhold the prescribed ceftriaxone and contact the healthcare provider immediately.

Answer

Withhold the prescribed ceftriaxone and contact the healthcare provider immediately.
Ceftriaxone is a third-generation cephalosporin. Because cephalosporins and penicillins (like amoxicillin) are both beta-lactam antibiotics, they share a similar chemical structure. Clients with a history of severe allergic reactions (such as anaphylaxis) to penicillins have a significant risk of experiencing a cross-sensitivity reaction to cephalosporins. The safest and most appropriate action is to withhold the dose and consult the prescribing provider for an alternative therapy.

Step-by-Step Solution

1
Analyze the client's medication history and the newly prescribed medication.
The client has an allergy to amoxicillin (a penicillin) and is prescribed ceftriaxone (a cephalosporin).
Identifying potential drug interactions or allergies is a critical pre-administration safety check.
2
Evaluate the relationship between the prescribed medication class and the known allergen.
Penicillins and cephalosporins share a beta-lactam ring structure, creating a risk for cross-sensitivity allergic reactions.
Understanding pharmacological classifications helps predict potential adverse effects.
3
Determine the highest priority nursing action based on the potential risk.
The priority action is to prevent exposure to the allergen by withholding the medication and notifying the provider.
According to the ABCs (Airway, Breathing, Circulation), preventing an anaphylactic reaction takes precedence over administering the medication.

Key Concept

Cross-sensitivity exists between penicillins and cephalosporins, requiring the nurse to withhold the medication and notify the provider to prevent anaphylaxis.
Question 3022Question →

A nurse is providing care for a client who had a right below-the-knee amputation 36 hours ago. The client reports mild discomfort and stiffness in the affected leg. Which nursing action is the most appropriate?

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Answer: Assist the client into a prone position for 20 to 30 minutes, three to four times a day.

Answer

The most appropriate action is to assist the client into a prone position for 20 to 30 minutes, three to four times a day.
Assisting the client into a prone position for 20 to 30 minutes several times a day is the correct intervention. This position actively stretches the flexor muscles of the hip and knee, which is a critical measure to prevent flexion contractures following a lower extremity amputation. Contractures can severely limit mobility and complicate or prevent the future use of a prosthesis.

Step-by-Step Solution

1
Identify the time elapsed since the amputation.
The client is 36 hours post-operative.
Positioning protocols change significantly after the first 24 hours to transition from edema management to contracture prevention.
2
Recognize the primary positioning risk for this client.
Hip and knee flexion contractures are a major risk following a below-the-knee amputation.
Flexion contractures can prevent the successful fitting and use of a prosthetic limb.
3
Determine the correct positioning intervention.
The prone position is indicated.
Lying prone stretches the flexor muscles of the hip and knee, directly counteracting the tendency for contractures to form.

Key Concept

Prevention of flexion contractures post-amputation
Question 3023Question →

A newly admitted adult client is recovering from a prolonged tonic-clonic seizure. The client has a peripheral venous catheter in the right forearm, which is currently infusing a maintenance solution of 5% dextrose in water at 80 mL/hr80\text{ mL/hr}. The nurse must deliver a stat order of intravenous phenytoin. Which procedural approach ensures safe administration of this medication?

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Answer: Pause the primary infusion, flush the catheter thoroughly with normal saline, inject the phenytoin, and follow with another normal saline flush.

Answer

The nurse must pause the dextrose infusion and thoroughly flush the intravenous line with normal saline both before and after administering the phenytoin.
Intravenous phenytoin is chemically incompatible with any solution containing dextrose. If mixed, the medication will immediately precipitate (crystallize). To safely administer this medication through a venous access device that is currently running a dextrose solution, the nurse must temporarily halt the primary infusion. The line must then be flushed aggressively with normal saline to clear out the dextrose. After slowly pushing the phenytoin, the nurse must flush the line a second time with normal saline before resuming the dextrose maintenance fluid. This 'flush-administer-flush' technique ensures the drug never comes into physical contact with the incompatible fluid.

Step-by-Step Solution

1
Analyze the primary intravenous solution currently infusing.
The client is receiving 5% dextrose in water.
Identifying the active maintenance fluid is required to determine medication compatibility prior to any IV push.
2
Recall the pharmacological compatibility profile of intravenous phenytoin.
Phenytoin is highly incompatible with all dextrose-containing solutions.
When phenytoin contacts dextrose, it forms solid microcrystals that can occlude the catheter or cause an embolus.
3
Determine the necessary sequence of actions for safe delivery.
The line must be flushed with normal saline before and after the phenytoin administration.
Normal saline is compatible with phenytoin. The initial flush clears the dextrose from the tubing, and the final flush ensures the medication is fully delivered before the primary dextrose infusion is restarted.

Key Concept

Intravenous Phenytoin Administration and Fluid Compatibility
Question 3024Question →

An intensive care nurse evaluates a critically ill client being treated for severe viral pneumonia. Over the past 30 minutes, the client has become increasingly agitated and disoriented. Current vital signs reveal a heart rate of 126 beats/min, a respiratory rate of 34 breaths/min, and a blood pressure of 98/78 mm Hg. Stat arterial blood gas (ABG) analysis on a non-rebreather mask demonstrates a pH of 7.26, PaCO2PaCO_2 of 64 mm Hg, PaO2PaO_2 of 52 mm Hg, and HCO3−HCO_3^- of 24 mEq/L. What is the most appropriate action by the nurse to mitigate the risk of immediate cardiorespiratory arrest?

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Answer: Assemble the necessary equipment for immediate rapid sequence intubation and mechanical ventilation.

Answer

The nurse must assemble the necessary equipment for immediate rapid sequence intubation and mechanical ventilation.
The correct action is to prepare for immediate intubation and mechanical ventilation. The client's profound hypoxemia (PaO2PaO_2 of 52 mm Hg despite high-flow oxygen via a non-rebreather mask), severe uncompensated respiratory acidosis (pH 7.26, PaCO2PaCO_2 64 mm Hg), and signs of impending shock (narrowing pulse pressure of 20 mm Hg, agitation, tachycardia) indicate acute respiratory failure. Securing the airway and providing mechanical ventilation is the most critical intervention to mitigate the risk of imminent cardiorespiratory arrest.

Step-by-Step Solution

1
Analyze the arterial blood gas (ABG) results.
The ABG reveals uncompensated respiratory acidosis (low pH, high PaCO2PaCO_2, normal HCO3−HCO_3^-) and severe, refractory hypoxemia (PaO2PaO_2 52 mm Hg on a non-rebreather mask).
Accurate ABG interpretation is essential to identify the underlying physiological disturbance causing the client's clinical decline.
2
Evaluate the client's vital signs and neurological status for systemic complications.
The narrowing pulse pressure (20 mm Hg), marked tachycardia, tachypnea, and new-onset agitation indicate impending physiological shock secondary to profound tissue hypoxia.
Recognizing early signs of shock and hypoxia prevents the administration of contraindicated medications, such as sedatives, which would mask symptoms and suppress respiratory drive.
3
Determine the highest priority intervention to reduce the risk of cardiorespiratory arrest.
Immediate airway control and positive pressure ventilation are required.
The client is failing non-invasive oxygenation strategies and is in imminent danger of respiratory collapse. Airway and breathing interventions must take precedence over other actions.

Key Concept

Prioritizing airway management in clients with uncompensated respiratory acidosis and impending shock
Question 3025Question →

A 7272-year-old client with a history of dysphagia is receiving continuous enteral nutrition via a nasogastric tube. The client suddenly exhibits severe shortness of breath, use of accessory muscles, and a pulse oximetry reading of 84%84\% on room air. A stat arterial blood gas (ABG) analysis shows a pH of 7.267.26, PaCO 2_2 of 6464 mm Hg, and HCO 3−_3^- of 2424 mEq/L. The nurse suspects acute pulmonary aspiration. Which of the following immediate interventions should the nurse implement? Select all that apply.

Select all that apply

Show answer & explanation

Answer: Stop the continuous enteral feeding pump.; Initiate supplemental oxygen therapy to treat hypoxemia.

Answer

The correct actions are to stop the continuous enteral feeding pump and initiate supplemental oxygen therapy.
The client is experiencing an acute respiratory emergency due to suspected aspiration. Immediate independent nursing actions must focus on stopping the source of aspiration by turning off the enteral feeding and treating the severe hypoxemia with supplemental oxygen. These interventions directly address the airway and breathing priorities to prevent further physiological deterioration.

Step-by-Step Solution

1
Identify the clinical emergency from the provided assessment data.
The client has profound hypoxemia (SpO 2_2 84%84\%) and acute respiratory acidosis (pH 7.267.26, PaCO 2_2 6464 mm Hg) likely due to aspiration of enteral feeding.
Recognizing the physiological signs of decompensation is necessary to prioritize life-saving interventions.
2
Determine the immediate priority actions based on the ABCs (Airway, Breathing, Circulation) framework.
The most critical actions are to stop the enteral feeding pump to halt further aspiration (Airway) and apply supplemental oxygen (Breathing).
Airway and breathing interventions take precedence over all other assessments and provider notifications during a respiratory code.
3
Evaluate and eliminate contraindicated or delayed interventions.
Laying the client flat, misinterpreting the ABG as metabolic acidosis, delaying lung auscultation to palpate the abdomen, and waiting for provider orders are all incorrect actions.
These actions worsen the client's physiological condition, represent critical misinterpretations of diagnostic data, or incorrectly delay prioritized care.

Key Concept

Prioritization of immediate life-saving interventions (ABCs) and correct interpretation of diagnostic data during an acute respiratory emergency to reduce the risk of physiological decompensation.
Question 3026Question →

A newly admitted client who recently completed a 14-day course of levofloxacin reports experiencing frequent, watery stools and abdominal cramping. The healthcare provider suspects a *Clostridioides difficile* infection. Which of the following infection control measures must the nurse implement? (Select all that apply.)

Select all that apply

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Answer: Clean all high-touch surfaces in the room with a bleach-based sporicidal solution.; Put on a protective gown and clean gloves prior to entering the client's environment.; Perform hand hygiene using soap and water after providing direct client care.

Answer

The nurse must clean surfaces with a bleach-based solution, put on a gown and gloves before entering, and perform hand hygiene using soap and water.
Clostridioides difficile requires strict contact enteric precautions. This involves placing the client in a private room and donning a gown and gloves upon entering to prevent the spread of the pathogen. Because this bacteria forms highly resistant spores, standard alcohol-based hand sanitizers are ineffective; staff must physically remove the spores from their hands using friction with soap and water. Furthermore, environmental surfaces must be disinfected with a sporicidal agent, such as a bleach-based solution, to eliminate lingering spores.

Step-by-Step Solution

1
Identify the suspected pathogen and its mode of transmission.
The client has suspected Clostridioides difficile, which is an enteric pathogen that forms resistant spores and is transmitted via direct or indirect contact.
Determining the transmission route is essential for selecting the appropriate isolation tier.
2
Determine the required isolation precautions for the identified pathogen.
Contact enteric precautions are required, which involve a private room, gown, gloves, handwashing with soap and water, and sporicidal cleaning agents.
Specific protocols are necessary because standard disinfectants and alcohol rubs do not destroy spores.
3
Evaluate each option against the required precautions.
Options involving bleach, gown/gloves on entry, and soap/water hand hygiene correctly align with contact enteric precautions.
Ensures all selected interventions strictly adhere to standard infection control guidelines for spore-forming organisms.

Key Concept

Contact Enteric Precautions for Spore-Forming Organisms
Question 3027Question →

A nurse is caring for a client who is receiving intravenous fluids through a central venous catheter. The client suddenly gasps, reports severe chest pain, and becomes extremely short of breath. The nurse notes a heart rate of 124 beats/min, a blood pressure of 82/50 mm Hg, and auscultates a loud, churning "mill-wheel" murmur over the precordium. Suspecting a venous air embolism, arrange the following nursing actions in the correct priority order.

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Answer

The correct order of actions is to first clamp the central venous catheter, then place the client in the left lateral Trendelenburg position, followed by administering 100% oxygen, activating the rapid response team, and finally documenting the event.
In a suspected venous air embolism, the nurse must prioritize immediate mechanical interventions to prevent cardiac arrest. The absolute first action is to stop the source by clamping the central venous catheter. Immediately after, the client is placed in the left lateral Trendelenburg position (Durant's maneuver) to trap the air in the apex of the right ventricle, preventing pulmonary artery obstruction. Once the air is trapped, administering 100% oxygen addresses hypoxia and creates a nitrogen gradient to shrink the bubble. With the immediate crisis stabilized, the nurse delegates calling for the rapid response team, and finally, documents the event after the situation is fully managed.

Step-by-Step Solution

1
Clamp the central venous catheter.
Halts the influx of air into the venous system.
Stopping the source is the absolute first priority in an iatrogenic air exposure to prevent worsening of the cardiovascular collapse.
2
Place the client in the left lateral Trendelenburg position.
Traps the air embolus in the right ventricle.
This specific positioning (Durant's maneuver) prevents the air bubble from entering the pulmonary artery, which would cause a fatal right ventricular outflow tract obstruction.
3
Administer 100% oxygen via a non-rebreather mask.
Treats hypoxia and shrinks the air bubble.
High-flow oxygen creates a diffusion gradient that washes out nitrogen from the bloodstream, causing the air embolus to decrease in size.
4
Instruct available personnel to activate the rapid response team.
Summons advanced medical support.
The client requires immediate medical evaluation and potential invasive interventions, such as aspiration of the air from the right atrium.
5
Document the critical event, interventions provided, and the client's response.
Creates an accurate legal and clinical medical record.
Thorough documentation must occur only after all emergency life-saving interventions are implemented and the client's immediate crisis is managed.

Key Concept

Management of Venous Air Embolism
Question 3028Question →

A nurse is assessing a client who is receiving continuous intravenous opioid analgesia. The client is difficult to arouse and has a respiratory rate of 8 breaths per minute. The nurse anticipates the client is developing respiratory acidosis. What arterial blood gas (ABG) findings would confirm this complication? Select all that apply.

Select all that apply

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Answer: pH 7.287.28; PaCO2PaCO_2 56 mm Hg

Answer

The ABG findings that confirm respiratory acidosis are a pH of 7.287.28 and a PaCO2PaCO_2 of 56 mm Hg.
Respiratory acidosis is clinically defined by an elevated partial pressure of arterial carbon dioxide (PaCO2PaCO_2 greater than 45 mm Hg) and a decreased blood pH (less than 7.357.35). Opioid-induced central nervous system depression causes hypoventilation, leading to the accumulation of carbon dioxide and subsequent acidemia. The correct findings exactly mirror these physiological shifts.

Step-by-Step Solution

1
Analyze the client's clinical presentation.
The client is experiencing profound hypoventilation (respiratory rate of 8 breaths per minute) due to opioid administration.
Identifying the physiological impact of hypoventilation helps determine the expected acid-base imbalance.
2
Determine the effect of hypoventilation on carbon dioxide levels.
A decreased respiratory rate leads to inadequate exhalation and subsequent retention of carbon dioxide in the blood.
Carbon dioxide acts as an acid in the body, so its retention directly lowers blood pH.
3
Correlate the physiological state with specific ABG parameters.
The retention of carbon dioxide corresponds to a PaCO2PaCO_2 greater than 45 mm Hg, resulting in a pH less than 7.357.35.
These specific laboratory values define uncompensated respiratory acidosis.

Key Concept

Arterial Blood Gas (ABG) Interpretation in Hypoventilation
Question 3029Question →

An adolescent client is brought to the emergency department after ingesting a toxic amount of acetylsalicylic acid (aspirin) 6 hours ago. The client is confused, diaphoretic, and reports tinnitus. Vital signs are: heart rate 124 beats/min, respiratory rate 34 breaths/min and deep, and blood pressure 102/64 mm Hg. Arterial blood gas (ABG) analysis reveals: pH 7.31, PaCO2 24 mm Hg, HCO3 12 mEq/L, and PaO2 96 mm Hg. Which physiological interpretation and corresponding priority action is most appropriate for this client?

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Answer: Partially compensated metabolic acidosis; prepare to administer an intravenous sodium bicarbonate infusion.

Answer

The correct interpretation is partially compensated metabolic acidosis, and the priority action is to prepare an intravenous sodium bicarbonate infusion.
The ABG results demonstrate a partially compensated metabolic acidosis. The pH is acidic (less than 7.35), which matches the low bicarbonate level (metabolic origin). The low carbon dioxide level indicates the respiratory system is attempting to compensate by hyperventilating. In acetylsalicylic acid (aspirin) toxicity, the priority intervention is alkalinizing the blood and urine with intravenous sodium bicarbonate. This treatment converts the toxic salicylate into an ionized form that cannot cross back into the tissues, trapping it in the renal tubules and rapidly accelerating its excretion from the body.

Step-by-Step Solution

1
Analyze the arterial blood gas (ABG) pH value to determine the primary acid-base status.
The pH is 7.31, which is below the normal range of 7.35-7.45, indicating acidemia.
Establishing the pH direction is the first step in identifying the primary physiological disturbance.
2
Evaluate the PaCO2 and HCO3 values to determine the origin of the acidosis.
The HCO3 is low (12 mEq/L), which matches the acidic pH, confirming a metabolic origin. The PaCO2 is also low (24 mm Hg).
Matching the abnormal parameter to the pH direction identifies whether the primary cause is respiratory or metabolic.
3
Determine the level of compensation based on the opposite parameter and the pH.
The low PaCO2 indicates the respiratory system is blowing off acid to compensate, but because the pH (7.31) is not yet back to normal, the condition is only partially compensated.
Assessing the opposite system reveals if physiological adaptation is occurring to restore homeostasis.
4
Identify the primary pharmacological intervention for the specific toxidrome (salicylate poisoning) causing the metabolic acidosis.
Intravenous sodium bicarbonate is required to alkalinize the urine and trap the salicylate ions for rapid renal excretion.
Treating the underlying toxicological cause is essential to reverse the severe, life-threatening metabolic derangement.

Key Concept

In severe salicylate (aspirin) toxicity, clients develop a profound high anion gap metabolic acidosis. The physiological adaptation is compensatory hyperventilation (Kussmaul respirations), and the priority pharmacological intervention is urinary alkalinization using intravenous sodium bicarbonate to trap and excrete the toxin.
Estimated Time:2m 0s
Question 3030Question →

A district school nurse is collaborating with a local health coalition to address the increasing prevalence of childhood obesity. The nurse is tasked with prioritizing a primary disease prevention strategy. Which of the following interventions should the nurse select?

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Answer: Integrating an interactive module on making balanced nutritional choices into the elementary school curriculum.

Answer

Integrating an interactive module on making balanced nutritional choices into the elementary school curriculum.
Primary prevention strategies are designed to prevent the initial occurrence of a disease or condition in a susceptible population. Integrating educational modules about nutrition into a school curriculum provides universal health promotion that encourages healthy habits before obesity develops, making it the correct primary prevention choice.

Step-by-Step Solution

1
Analyze the stem to determine the core objective.
The nurse needs to select a primary disease prevention strategy for childhood obesity.
Identifying the required level of prevention is necessary to evaluate the options.
2
Define the characteristics of primary, secondary, and tertiary prevention.
Primary prevention prevents disease onset (e.g., education). Secondary prevention focuses on early detection (e.g., screening). Tertiary prevention manages existing disease to prevent complications (e.g., treatment programs).
Recalling these definitions allows for accurate classification of each proposed intervention.
3
Evaluate the options against the definitions and developmental appropriateness.
The educational curriculum module is primary prevention. BMI screening is secondary. The program for diagnosed children is tertiary. The tracking app for first-graders is developmentally inappropriate.
Systematically reviewing options ensures the correct prevention level and clinical feasibility are met.

Key Concept

Primary disease prevention aims to prevent disease or injury before it ever occurs by promoting healthy behaviors and reducing exposure to risk factors.
Question 3031Question →

A nurse in the cardiovascular intensive care unit is caring for a client with acute decompensated heart failure. The client weighs 209 lbs209\text{ lbs}.

The client is receiving a continuous intravenous infusion of dobutamine. The standard hospital mixture contains 500 mg500\text{ mg} of dobutamine in 250 mL250\text{ mL} of 5%5\% dextrose in water (D5W). The infusion pump is currently running at 17.1 mL/hr17.1\text{ mL/hr}.

The provider's order reads: 'Titrate dobutamine by 1.5 mcg/kg/min1.5\text{ mcg/kg/min} every 15 minutes15\text{ minutes} to achieve a cardiac index ≥2.2 L/min/m2\geq 2.2\text{ L/min/m}^2.'

The latest hemodynamic assessment reveals a cardiac index of 1.8 L/min/m21.8\text{ L/min/m}^2. The nurse prepares to perform the next titration step according to the protocol.

At what value in mL/hr\text{mL/hr} will the nurse program the infusion pump for the new dose? (Round the final answer to the nearest tenth.)

Show answer & explanation

Answer: 21.4

Answer

The new infusion pump rate should be set to 21.4 mL/hr21.4\text{ mL/hr}.
To arrive at the correct value, the nurse must first convert the weight to kilograms (95 kg95\text{ kg}) and determine the solution's concentration (2,000 mcg/mL2,000\text{ mcg/mL}). The low cardiac index dictates an upward titration. The required dose increase (1.5 mcg/kg/min1.5\text{ mcg/kg/min}) is multiplied by weight (95 kg95\text{ kg}) and time (60 minutes60\text{ minutes}) to find the hourly dose increase (8,550 mcg/hr8,550\text{ mcg/hr}). Dividing this by the concentration (2,000 mcg/mL2,000\text{ mcg/mL}) yields the rate increase of 4.275 mL/hr4.275\text{ mL/hr}. Adding this to the current baseline rate of 17.1 mL/hr17.1\text{ mL/hr} equals 21.375 mL/hr21.375\text{ mL/hr}, which correctly rounds to 21.4 mL/hr21.4\text{ mL/hr}.

Step-by-Step Solution

1
Convert the client's weight from pounds to kilograms.
209 lbs÷2.2 lbs/kg=95 kg209\text{ lbs} \div 2.2\text{ lbs/kg} = 95\text{ kg}
The medication dosing protocol is based on metric weight (kilograms).
2
Calculate the exact concentration of the dobutamine infusion in mcg/mL\text{mcg/mL}.
500 mg=500,000 mcg500\text{ mg} = 500,000\text{ mcg}. Then, 500,000 mcg÷250 mL=2,000 mcg/mL500,000\text{ mcg} \div 250\text{ mL} = 2,000\text{ mcg/mL}.
Titration orders are in micrograms (mcg), so the medication concentration must match this unit to calculate volume.
3
Determine the necessary clinical intervention based on the current cardiac index.
The current cardiac index is 1.8 L/min/m21.8\text{ L/min/m}^2, which is less than the goal of 2.2 L/min/m22.2\text{ L/min/m}^2. The dose must be increased by the ordered 1.5 mcg/kg/min1.5\text{ mcg/kg/min}.
Nurses must independently assess parameters to decide the direction of the titration before performing the math.
4
Calculate the total dose increase in mcg/min\text{mcg/min} for this specific client.
1.5 mcg/kg/min×95 kg=142.5 mcg/min1.5\text{ mcg/kg/min} \times 95\text{ kg} = 142.5\text{ mcg/min}.
This isolates the exact amount of extra drug the client needs every minute.
5
Convert the per-minute dose increase to a per-hour dose increase.
142.5 mcg/min×60 minutes/hour=8,550 mcg/hr142.5\text{ mcg/min} \times 60\text{ minutes/hour} = 8,550\text{ mcg/hr}.
IV infusion pumps are programmed in hourly rates (mL/hr\text{mL/hr}), so the dose must reflect an hourly timeframe.
6
Calculate the volumetric rate increase (mL/hr\text{mL/hr}) required to deliver the extra 8,550 mcg/hr8,550\text{ mcg/hr}.
8,550 mcg/hr÷2,000 mcg/mL=4.275 mL/hr8,550\text{ mcg/hr} \div 2,000\text{ mcg/mL} = 4.275\text{ mL/hr}.
This translates the needed extra medication into the actual fluid volume the pump will deliver.
7
Add the rate increase to the current running rate and apply rounding rules.
17.1 mL/hr+4.275 mL/hr=21.375 mL/hr17.1\text{ mL/hr} + 4.275\text{ mL/hr} = 21.375\text{ mL/hr}. Rounded to the nearest tenth, this is 21.4 mL/hr21.4\text{ mL/hr}.
The final step combines the current baseline therapy with the newly calculated upward adjustment.

Key Concept

Weight-Based Continuous Infusion Titration and Hemodynamic Interpretation
Estimated Time:3m 0s
Question 3032Question →

An adult client admitted to the medical-surgical unit is currently receiving continuous enteral nutrition through a nasogastric tube. To actively reduce the risk of potential physiological complications associated with this therapy, which intervention is most appropriate for the nurse to implement?

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Answer: Keep the head of the bed raised between 30 and 45 degrees.

Answer

The correct intervention is to keep the head of the bed raised between 30 and 45 degrees to prevent the aspiration of enteral formula.
Keeping the head of the bed raised between 30 and 45 degrees uses gravity to prevent the reflux of gastric contents into the esophagus, thereby significantly reducing the risk of aspiration. Aspiration of enteral formula can lead to severe respiratory complications, such as aspiration pneumonia. This position must be maintained continuously while the feeding is active.

Step-by-Step Solution

1
Identify the primary therapy and its associated risks.
The client is receiving continuous enteral nutrition via a nasogastric tube.
Enteral feeding bypasses the normal swallowing mechanism, significantly increasing the risk of gastric reflux and aspiration of stomach contents into the respiratory tract.
2
Determine the appropriate risk-reduction intervention.
Positioning the client with their upper body elevated is required.
An elevated position uses gravity to help keep gastric contents in the stomach, thereby preventing aspiration pneumonia, which is a severe and potentially life-threatening complication.

Key Concept

Preventing aspiration in clients receiving enteral nutrition requires continuously maintaining the upper body in an elevated position.
Estimated Time:1m 0s
Question 3033Question →

A nurse is managing the care of a client who is receiving continuous total parenteral nutrition (TPN) via a peripherally inserted central catheter (PICC). Which of the following nursing actions are appropriate to include in the client's plan of care? (Select all that apply.)

Select all that apply

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Answer: Obtain capillary blood glucose measurements every 4 to 6 hours.; Replace the TPN infusion bag and intravenous tubing every 24 hours.; Hang a 10% dextrose in water (D10W) infusion if the current TPN bag is empty and the new one is not yet available.

Answer

The correct actions are obtaining capillary blood glucose measurements every 4 to 6 hours, replacing the TPN bag and tubing every 24 hours, and hanging a 10% dextrose in water (D10W) infusion if the TPN is abruptly stopped.
Safe administration of Total Parenteral Nutrition requires strict infection control (changing bags and tubing every 24 hours), vigilant glycemic monitoring (checking blood glucose every 4-6 hours), and prevention of sudden hypoglycemia (keeping D10W available if the TPN runs out).

Step-by-Step Solution

1
Evaluate the risk of hyperglycemia and hypoglycemia associated with high-dextrose TPN solutions.
Identified the need for routine blood glucose monitoring and the use of D10W if the infusion is interrupted.
TPN creates continuous high glucose loads, requiring endogenous insulin adaptation. Stopping it suddenly causes hypoglycemia; running it continuously requires monitoring.
2
Assess infection control protocols for central lines and highly concentrated nutritional fluids.
Identified the need to change the tubing/bag every 24 hours and avoid disconnecting the line during ambulation.
TPN solutions are ideal environments for bacterial and fungal growth.
3
Analyze the safety guidelines regarding TPN line access.
Determined that the TPN lumen must be dedicated exclusively to TPN.
Mixing other medications in the TPN line carries a severe risk of chemical incompatibility and precipitation.

Key Concept

Total Parenteral Nutrition (TPN) Safety and Administration
Estimated Time:1m 30s
Question 3034Question →

A nurse is caring for a client with type 2 diabetes mellitus whose morning blood glucose level is 185 mg/dL185 \text{ mg/dL}. The healthcare provider has prescribed 10 units10 \text{ units} of regular insulin and 20 units20 \text{ units} of NPH insulin to be administered subcutaneously. The nurse is preparing to mix both insulins in a single syringe. Arrange the following steps in the correct sequence for this procedure.

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Answer

The correct sequence is to first roll the NPH vial, inject air into the NPH vial, inject air into the regular insulin vial, withdraw the regular insulin, and finally withdraw the NPH insulin.
The standard sequence for mixing insulins ensures the fast-acting (clear) insulin is not contaminated by the intermediate-acting (cloudy) insulin. The correct mnemonic is often 'Clear before Cloudy'. The process is: mix the cloudy insulin by rolling, inject air into the cloudy vial, inject air into the clear vial, draw from the clear vial, and finally draw from the cloudy vial.

Step-by-Step Solution

1
Roll the NPH vial gently between the palms.
The cloudy suspension is mixed uniformly.
Vigorous shaking causes air bubbles which can lead to inaccurate dosing; rolling mixes the particles safely.
2
Inject 20 units20 \text{ units} of air into the NPH vial, then remove the needle.
The NPH vial is pressurized for later withdrawal.
Air must be injected to prevent a vacuum, but the medication is not drawn yet to prevent contamination.
3
Inject 10 units10 \text{ units} of air into the regular insulin vial.
The regular insulin vial is pressurized.
Prepares the vial for immediate withdrawal of the medication without removing the needle.
4
Invert the vial and withdraw 10 units10 \text{ units} of regular insulin.
The clear insulin is drawn into the syringe.
Drawing the clear (short-acting) insulin first prevents it from being contaminated by the longer-acting insulin.
5
Insert the needle into the NPH vial and withdraw 20 units20 \text{ units}.
The total dose of 30 units30 \text{ units} is drawn into the syringe.
Drawing the cloudy insulin last completes the mixture without risking contamination of the rapid or short-acting insulin vial.

Key Concept

Mixing Clear and Cloudy Insulins
Question 3035Question →

A nurse is caring for a 62-year-old client who is 4 days post-operative following an open colon resection. While the nurse is assisting the client with coughing and deep breathing exercises, the client reports a sudden "popping" sensation in the abdomen. The nurse inspects the surgical site and observes a wound evisceration. Place the following nursing interventions in the correct order of priority to mitigate further physiological risk.

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Answer

The correct sequence is: 1) Remain with the client and call for assistance, 2) Position in low Fowler's with hips and knees flexed, 3) Cover the organs with sterile moistened dressings, 4) Obtain vital signs, 5) Prepare for emergency surgery (IV/NPO).
The priority sequence for wound evisceration follows the principle of immediate physical stabilization. Securing help without leaving the client is paramount. Next, placing the client in low Fowler's with flexed knees instantly reduces abdominal tension, stopping further organ protrusion. Only after this mechanical stabilization should the nurse apply sterile, moist dressings to prevent tissue necrosis. Once the viscera are protected, systemic assessment (vital signs) takes precedence, followed by definitive preparation for emergency surgery.

Step-by-Step Solution

1
Remain with the client and direct ancillary staff to immediately notify the rapid response team and surgical provider.
Emergency assistance is secured without abandoning an acutely unstable client.
An evisceration requires emergency surgical intervention and sterile supplies that the primary nurse cannot safely leave the room to retrieve.
2
Assist the client into a low Fowler's position with the hips and knees flexed.
Intra-abdominal pressure is immediately reduced.
This biomechanical intervention relaxes the abdominal rectus muscles, physically preventing further visceral protrusion from occurring while awaiting supplies.
3
Apply sterile, non-adherent dressings moistened with warm sterile normal saline over the protruding organs.
The eviscerated bowel is protected from necrosis and infection.
Exposed viscera will rapidly dry out and become ischemic if not covered with a warm, sterile, moist environment.
4
Obtain a comprehensive set of vital signs and assess peripheral perfusion for signs of hemorrhagic shock.
Systemic hemodynamic stability is evaluated.
Once the localized threat to the organs is managed, the nurse must assess for signs of systemic decompensation or concealed internal hemorrhage.
5
Verify the patency of large-bore intravenous access and maintain strict nothing-by-mouth (NPO) status.
The client is prepared for an emergent return to the operating room.
Definitive treatment requires surgery; maintaining NPO status prevents aspiration during anesthesia, and IV access ensures fluid resuscitation capabilities.

Key Concept

Management of a surgical evisceration requires immediate prioritization of actions that reduce intra-abdominal pressure and protect exposed viscera from necrosis before conducting systemic assessments.
Estimated Time:2m 0s
Question 3036Question →

A nurse in an ambulatory care clinic is evaluating a 55-year-old male client who has not visited a healthcare provider in over a decade. The client is currently asymptomatic but reports a strong family history of type 2 diabetes mellitus and colorectal cancer. Which of the following nursing actions are appropriate regarding this client's health promotion and disease prevention plan? Select all that apply.

Select all that apply

Show answer & explanation

Answer: Recommend a screening colonoscopy or fecal immunochemical test (FIT) for colorectal cancer detection.; Prepare to administer the recombinant zoster vaccine (RZV) as a primary prevention measure against shingles.; Obtain an order for a fasting blood glucose or hemoglobin A1c level to screen for diabetes mellitus.

Answer

The correct actions include recommending colorectal cancer screening, administering the recombinant zoster vaccine, and screening for diabetes mellitus.
Appropriate health promotion for a 55-year-old adult includes primary prevention strategies like the recombinant zoster vaccine (recommended for adults 50 and older) and secondary prevention strategies like screenings for colorectal cancer and type 2 diabetes, which are particularly important given the client's age and family history.

Step-by-Step Solution

1
Analyze the client's demographic data and health history.
The client is a 55-year-old male with a family history of colorectal cancer and type 2 diabetes who lacks recent healthcare maintenance.
Identifying age and genetic risk factors determines which specific health screenings and immunizations are indicated.
2
Determine appropriate primary prevention interventions.
Identify the need for age-appropriate immunizations, specifically the recombinant zoster vaccine for adults aged 50 and older.
Primary prevention aims to prevent disease before it occurs.
3
Determine appropriate secondary prevention interventions.
Identify the need for colorectal cancer screening (indicated for adults > 45) and diabetes screening (indicated due to family history and age).
Secondary prevention focuses on early detection and treatment of asymptomatic diseases.
4
Evaluate remaining options for clinical errors.
Reject options that misclassify vaccinations as secondary prevention, falsely attribute sudden confusion to normal aging, or improperly delegate nursing assessments.
Ensuring safe nursing practice requires accurate knowledge of prevention levels, aging physiology, and the RN scope of practice.

Key Concept

Age-appropriate health screening and primary prevention strategies
Estimated Time:1m 30s
Question 3037Question →

A nurse is evaluating a client who sustained a massive anterior wall myocardial infarction 24 hours ago. Which of the following clinical findings indicate the client is developing cardiogenic shock? Select all that apply.

Select all that apply

Show answer & explanation

Answer: Blood pressure of 86/70 mm Hg; Urine output of 40 mL over the past 3 hours; Cool, clammy skin with delayed capillary refill

Answer

The clinical findings that indicate cardiogenic shock are a blood pressure of 86/70 mm Hg, a urine output of 40 mL over the past 3 hours, and cool, clammy skin with delayed capillary refill.
Cardiogenic shock occurs when the heart's pumping ability is severely compromised, leading to decreased cardiac output and inadequate tissue perfusion. A blood pressure of 86/70 mm Hg demonstrates hypotension with a narrowed pulse pressure (16 mm Hg), reflecting decreased stroke volume and compensatory systemic vasoconstriction. A urine output of 40 mL over 3 hours (approximately 13 mL/hr) indicates severely diminished renal perfusion (oliguria). Cool, clammy skin with delayed capillary refill is a result of the sympathetic nervous system shunting blood away from the periphery to preserve vital organ function.

Step-by-Step Solution

1
Analyze the client's risk factors based on the clinical presentation.
The client experienced a massive anterior wall myocardial infarction, which significantly damages the left ventricle and places the client at high risk for pump failure (cardiogenic shock).
Identifying the underlying etiology helps anticipate the specific pathophysiological changes that will occur if the condition deteriorates.
2
Recall the pathophysiology and compensatory mechanisms associated with cardiogenic shock.
Cardiogenic shock is characterized by a severe drop in cardiac output and tissue perfusion. The body compensates via the sympathetic nervous system by causing profound peripheral vasoconstriction to maintain blood pressure and shunt blood to vital organs.
Understanding the mechanism allows for the logical deduction of expected clinical signs, such as cold skin, narrowed pulse pressure, and decreased end-organ perfusion.
3
Evaluate each option to determine if it aligns with the expected signs of cardiogenic shock.
Hypotension with a narrow pulse pressure, oliguria (poor renal perfusion), and cool/clammy skin are direct results of pump failure and vasoconstriction. Warm extremities suggest vasodilation (distributive shock), and metabolic alkalosis contradicts the expected lactic acidosis.
Systematically filtering the choices prevents the selection of distractors that represent other types of shock or incorrect acid-base imbalances.

Key Concept

Cardiogenic shock manifests with signs of decreased cardiac output and compensatory systemic vasoconstriction, including hypotension with a narrowed pulse pressure, oliguria, cool/clammy skin, and metabolic acidosis.
Question 3038Question →

A nurse is assessing a client who is 4 hours post-operative following a total thyroidectomy. Which of the following clinical observations and assessment findings require immediate intervention by the nurse? Select all that apply.

Select all that apply

Show answer & explanation

Answer: The client demonstrates a high-pitched, harsh sound during inspiration.; The client reports a tingling sensation around the mouth and fingertips.; The client is swallowing frequently and reports a feeling of fullness in the neck.

Answer

The findings requiring immediate intervention are the high-pitched inspiratory sound, the tingling sensation around the mouth and fingertips, and the frequent swallowing with a feeling of neck fullness.
The correct findings represent three severe, rapid-onset complications of a thyroidectomy. A high-pitched, harsh inspiratory sound (stridor) indicates acute airway obstruction due to laryngeal edema or nerve damage. A tingling sensation around the mouth and fingertips (paresthesia) is an early, critical indicator of hypocalcemia resulting from inadvertent parathyroid gland removal or trauma, which can lead to tetany and cardiac dysrhythmias. Frequent swallowing and a feeling of neck fullness strongly suggest an expanding hematoma or active hemorrhage underneath the surgical site, which can quickly compress the trachea and block the airway.

Step-by-Step Solution

1
Analyze the surgical procedure (total thyroidectomy) to anticipate potential acute, life-threatening complications.
Identified risks include airway obstruction (from edema or vocal cord paralysis), hemorrhage/hematoma, and hypocalcemia (from inadvertent parathyroid gland injury).
Anticipating high-risk complications focuses the assessment on findings that indicate physiological decompensation.
2
Evaluate each assessment finding to differentiate between expected post-operative observations and indications of impending emergencies.
Stridor, circumoral paresthesia, and frequent swallowing are abnormal findings signaling severe complications. Hoarseness and the semi-Fowler's position are expected and safe.
Prioritization requires intervening immediately for findings that compromise the airway, breathing, or cardiovascular stability.

Key Concept

Post-thyroidectomy Complication Recognition and Risk Mitigation
Question 3039Question →

A nurse receives handoff report for a client who is 4 hours postpartum following a forceps-assisted vaginal delivery of an 8 lb 12 oz (3.97 kg) neonate. The client reports intense, deep pelvic pain and severe rectal pressure. The previous shift's assessment noted a firm, midline fundus, scant lochia rubra, heart rate of 118 bpm, and blood pressure of 92/58 mm Hg. Which action is the highest priority for the nurse to take?

Show answer & explanation

Answer: Inspect the client's perineal and vulvar area for localized swelling and discoloration

Answer

Inspect the client's perineal and vulvar area for localized swelling and discoloration
The client's presentation of severe pelvic pain, extreme rectal pressure, a firm fundus, scant lochia, tachycardia, and borderline hypotension is highly suspicious for a vulvar, vaginal, or retroperitoneal hematoma. A hematoma is a localized collection of blood in the tissues resulting from vessel damage, often associated with operative deliveries (forceps) and macrosomia. It can cause massive concealed hemorrhage, leading to hypovolemic shock despite minimal external bleeding. The nurse's highest priority is to inspect the perineum to confirm the presence of a hematoma so that prompt medical or surgical intervention can be initiated.

Step-by-Step Solution

1
Analyze the client's risk factors and presenting symptoms.
The client had a forceps-assisted delivery of a macrosomic infant, placing her at high risk for tissue trauma. She now has severe pelvic pain and rectal pressure.
Identifying risk factors helps narrow down the potential postpartum complications.
2
Evaluate the objective clinical findings (vital signs and physical assessment).
The fundus is firm with scant lochia, ruling out uterine atony. However, the client is tachycardic (118 bpm) and hypotensive (92/58 mm Hg).
Vital sign trends are critical for detecting early signs of shock that are disproportionate to the visible blood loss.
3
Synthesize the data to determine the likely complication and prioritize nursing action.
Intense pain, rectal pressure, and signs of shock with a firm fundus indicate a concealed hemorrhage, such as a vaginal or vulvar hematoma. The nurse must inspect the area to confirm.
The nursing process dictates that focused assessment must precede interventions when a new complication is suspected.

Key Concept

Recognition and assessment of postpartum hematoma and concealed hemorrhage
Estimated Time:1m 30s
Question 3040Question →

A client is recovering in the outpatient endoscopy unit after undergoing an esophagogastroduodenoscopy (EGD) with gastric biopsies. The client received intravenous midazolam and fentanyl for moderate sedation. Which assessment finding represents the highest priority physiological risk that the nurse must report immediately?

Show answer & explanation

Answer: A narrowing pulse pressure, resting tachycardia, and involuntary abdominal guarding.

Answer

The correct answer is the finding of a narrowing pulse pressure, resting tachycardia, and involuntary abdominal guarding.
The correct answer identifies signs of gastric perforation and early hypovolemic shock. A narrowing pulse pressure and tachycardia are compensatory mechanisms for fluid loss or sepsis, while involuntary guarding indicates severe peritoneal irritation. This is a life-threatening emergency requiring immediate provider notification for surgical evaluation.

Step-by-Step Solution

1
Analyze the procedure (EGD with biopsy) to identify potential life-threatening complications.
The most critical risks are gastric perforation (causing peritonitis and hemorrhagic shock) and aspiration.
Understanding procedure-specific risks is essential for focused post-operative monitoring.
2
Evaluate the clinical findings in each option to distinguish between expected post-sedation side effects and critical emergencies.
Mild respiratory acidosis, a sluggish gag reflex, and positional hypoxia are expected or easily reversible effects of sedation and intubation.
The nurse must filter out normal recovery data to identify true pathological changes.
3
Prioritize the finding that indicates a systemic, life-threatening complication.
Narrowing pulse pressure, tachycardia, and guarding indicate an acute surgical abdomen, which is the highest priority.
Gastrointestinal perforation leads to rapid physiological decompensation and requires immediate medical or surgical intervention.

Key Concept

Recognizing early signs of physiological decompensation and procedural complications.
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