HESI LPN
Practice HESI Fundamentals Exam
1. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
2. A client has been sitting in a chair for 1 hour. Which of the following complications poses the greatest risk to the client?
- A. Decreased subcutaneous fat
- B. Muscle atrophy
- C. Pressure injury
- D. Fecal impaction
Correct answer: C
Rationale: The correct answer is C: Pressure injury. Prolonged sitting can lead to pressure injuries due to continuous pressure on certain body areas, reducing blood flow and causing tissue damage. While decreased subcutaneous fat, muscle atrophy, and fecal impaction are potential concerns, pressure injuries pose the greatest immediate risk as they can lead to serious complications such as tissue necrosis and infection if not addressed promptly. Decreased subcutaneous fat and muscle atrophy may develop over time with prolonged immobility but are not as acutely dangerous as a pressure injury. Fecal impaction, while uncomfortable and potentially serious, does not pose an immediate life-threatening risk compared to the development of a pressure injury.
3. A nurse receives a prescription for an antibiotic for a client with cellulitis. The nurse checks the client’s medical record, discovers the client's allergy to the antibiotic, and calls the provider for a different prescription. Which of the following critical thinking attitudes did the nurse demonstrate?
- A. Fairness
- B. Responsibility
- C. Risk-taking
- D. Creativity
Correct answer: B
Rationale: The nurse demonstrated responsibility by recognizing the potential harm of administering an antibiotic the client is allergic to and taking the necessary steps to ensure the client's safety. Choice A, 'Fairness,' is not applicable in this scenario as it does not involve treating individuals equitably. Choice C, 'Risk-taking,' is incorrect as the nurse's actions aimed to minimize risks rather than taking them. Choice D, 'Creativity,' is not the best fit as the nurse's actions focused on following established protocols and ensuring patient safety rather than thinking innovatively.
4. A healthcare professional is caring for a client who has a prescription for a vest restraint. Which of the following actions should the healthcare professional take?
- A. Tie the restraint with a quick-release knot.
- B. Use a slipknot to secure the restraint.
- C. Ensure the restraint is tightly secured.
- D. Attach the restraint to the bed frame.
Correct answer: A
Rationale: The correct action for the healthcare professional to take when applying a vest restraint is to tie it with a quick-release knot. A quick-release knot allows for easy and rapid removal in case of an emergency, ensuring the safety of the client. Using a slipknot (Choice B) is not recommended as it may not provide quick release in emergencies. Ensuring the restraint is tightly secured (Choice C) can be dangerous as it can restrict circulation or cause discomfort. Attaching the restraint to the bed frame (Choice D) is inappropriate and can lead to potential harm or injury to the client.
5. A healthcare professional is preparing to administer 0.9% sodium chloride (0.9% NaCl) 250 mL IV to infuse over 30 min. The drop factor of the manual IV tubing is 10 gtt/mL. How many gtt/min should the healthcare professional adjust the manual IV infusion to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 83 gtt/min
- B. 125 gtt/min
- C. 100 gtt/min
- D. 75 gtt/min
Correct answer: C
Rationale: To administer 250 mL over 30 min with a drop factor of 10 gtt/mL, the healthcare professional should adjust the IV infusion to deliver 100 gtt/min. The correct calculation is: (250 mL ÷ 30 min) x 10 gtt/mL = 100 gtt/min. This rate ensures the proper administration of the IV solution within the specified time frame. Choices A, B, and D are incorrect as they do not align with the accurate calculation based on the provided data.
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