HESI LPN
HESI Practice Test for Fundamentals
1. A client with congestive heart failure (CHF) is receiving furosemide (Lasix). Which laboratory value should the LPN monitor closely while the client is taking this medication?
- A. Sodium
- B. Potassium
- C. Calcium
- D. Magnesium
Correct answer: B
Rationale: The LPN should monitor potassium levels closely while the client is taking furosemide (Lasix) due to the medication's potential to cause hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss through increased urine output. Hypokalemia can result in serious complications such as cardiac dysrhythmias. Monitoring sodium levels (choice A) is important but not as critical as monitoring potassium in this context. Calcium (choice C) and magnesium (choice D) levels are not typically affected by furosemide and are not the priority for monitoring in this scenario.
2. A nurse questions a medication prescription as too extreme in light of the client’s advanced age and unstable status. The nurse understands that this action is an example of which of the following ethical principles?
- A. Fidelity
- B. Autonomy
- C. Justice
- D. Nonmaleficence
Correct answer: D
Rationale: The correct answer is D, Nonmaleficence. Nonmaleficence refers to the principle of 'do no harm.' In this scenario, questioning a potentially harmful prescription for a client with advanced age and unstable status aligns with the principle of nonmaleficence, as the nurse is advocating for the client's safety and well-being. Choice A, Fidelity, refers to being faithful and keeping promises, which is not directly related to the situation described. Choice B, Autonomy, pertains to respecting a patient's right to make their own decisions, which is not the focus of the nurse questioning the prescription. Choice C, Justice, involves fairness and equal treatment, which is not the primary ethical principle at play in this situation.
3. When reviewing car seat use with the parents of a 1-month-old infant, which of the following instructions should the nurse include?
- A. Use a car seat that has a three-point harness system.
- B. Position the car seat so that the infant is rear-facing.
- C. Secure the car seat in the front passenger seat of the vehicle.
- D. Convert to a booster seat after 12 months.
Correct answer: B
Rationale: The correct instruction for car seat use with a 1-month-old infant is to position the car seat so that the infant is rear-facing. This orientation provides the safest option for infants as it supports their head, neck, and spine. While using a car seat with a three-point harness system is appropriate for infants, placing the car seat in the front passenger seat is not recommended due to the presence of airbags, which can pose a risk to the infant in the event of deployment. Additionally, transitioning to a booster seat is not suitable at 12 months; infants should remain in rear-facing car seats until they outgrow the seat's height or weight limits, typically around 2 years of age.
4. A healthcare professional is assessing a client’s oculomotor nerve functions. Which of the following actions should the healthcare professional take?
- A. Check the client’s pupillary reaction to light
- B. Ask the client to read print from the Snellen chart
- C. Ask the client to identify different scents
- D. Use cotton to lightly touch the client’s cornea
Correct answer: A
Rationale: Checking the client’s pupillary reaction to light is a key assessment to evaluate the oculomotor nerve function. The oculomotor nerve controls the pupil's constriction response to light. Choices B, C, and D are incorrect because testing vision with a Snellen chart, identifying scents, or touching the cornea are not specific assessments for oculomotor nerve function.
5. A child is postoperative following a tonsillectomy. Which of the following actions should the nurse take?
- A. Administer analgesics to the child on a routine schedule throughout the day and night.
- B. Offer fluids to the child immediately after surgery.
- C. Allow the child to return to solid foods gradually.
- D. Avoid administering any medication until the child is fully awake.
Correct answer: A
Rationale: Administering analgesics to the child on a routine schedule throughout the day and night is crucial for managing postoperative pain effectively and ensuring the child's comfort. Pain management is a priority in the postoperative period to promote healing and prevent complications. Offering fluids to the child immediately after surgery (Choice B) is essential to prevent dehydration, but pain control takes precedence. Allowing the child to return to solid foods gradually (Choice C) is important, but initially, the child may need to start with clear liquids and progress to soft foods post-tonsillectomy. Avoiding administering any medication until the child is fully awake (Choice D) is not advisable because timely pain relief is essential for the child's comfort and recovery.
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