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 with type 2 diabetes mellitus is receiving metformin (Glucophage). Which laboratory test should the LPN/LVN monitor while the client is taking this medication?
- A. Complete blood count (CBC)
- B. Liver function tests
- C. Serum electrolytes
- D. Renal function tests
Correct answer: B
Rationale: The correct answer is B: Liver function tests. While a client is taking metformin, monitoring liver function tests is crucial to assess for potential hepatic side effects. Metformin is primarily eliminated by the liver, and monitoring liver function tests helps in early detection of any liver-related complications. Choices A, C, and D are incorrect. A complete blood count (CBC) is not specifically required for monitoring metformin therapy. Serum electrolytes are not directly impacted by metformin, making it less relevant for monitoring this medication. Renal function tests are important for some other diabetes medications, but in the case of metformin, liver function tests take precedence due to its hepatic metabolism.
3. A nurse educator is conducting a parenting class for new guardians of infants. Which of the following statements made by a participant indicated understanding?
- A. “I will set my water heater at 130°F.”
- B. “Once my baby can sit up, they should be safe in the bathtub.”
- C. “I will place my baby on their stomach to sleep.”
- D. “Once my infant starts to push up, I will remove the mobile from over the crib.”
Correct answer: D
Rationale: The correct answer is D. Removing the mobile when the baby starts to push up prevents choking hazards as infants can reach and grab objects posing a risk of choking. Choice A is unsafe as setting the water heater at 130°F can scald a child. Choice B is incorrect because even when a baby can sit up, they still require close supervision in the bathtub. Choice C is unsafe as current guidelines recommend placing babies on their backs to sleep to reduce the risk of sudden infant death syndrome (SIDS). Therefore, choices A, B, and C are incorrect or unsafe practices for infant care.
4. A client with a history of hypertension is taking a beta-blocker. Which side effect should the LPN/LVN monitor for in this client?
- A. Increased appetite
- B. Dry mouth
- C. Bradycardia
- D. Insomnia
Correct answer: C
Rationale: The correct answer is C: Bradycardia. Beta-blockers are medications that can lower heart rate, leading to bradycardia as a potential side effect. It is essential for the LPN/LVN to monitor for this adverse effect due to the medication's mechanism of action. Choices A, B, and D are incorrect because increased appetite, dry mouth, and insomnia are not typically associated with beta-blocker use. Monitoring for bradycardia is crucial to ensure patient safety and to prevent any potential complications.
5. When ambulating a frail, older adult client, the nurse should:
- A. Use the transfer belt if the client is unsteady
- B. Walk beside the client without support
- C. Encourage the client to use a walker
- D. Hold the client's arm for support
Correct answer: A
Rationale: Using a transfer belt if the client is unsteady is essential to provide added safety and support during ambulation. This device helps the nurse assist the client in maintaining balance and prevents falls. Walking beside the client without support (choice B) may not offer enough assistance for a frail, older adult who is unsteady. Encouraging the client to use a walker (choice C) could be helpful in some cases, but if the client is unsteady during ambulation, additional support like a transfer belt is more appropriate. Holding the client's arm for support (choice D) may not provide enough stability and safety compared to using a transfer belt.
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