HESI LPN
CAT Exam Practice Test
1. The nurse is teaching a class on child care to new parents. Which instruction should be included about the prevention of rotavirus infection in infants who are starting to eat foods?
- A. Keep house pets away from the food preparation area
- B. Avoid feeding infants fresh fruits
- C. Use only lactose-free formulas
- D. Wash hands before any food preparation
Correct answer: D
Rationale: The correct answer is D: Wash hands before any food preparation. Rotavirus is a highly contagious virus that can be prevented by maintaining proper hygiene. Washing hands before handling food can help prevent the spread of infections, including rotavirus. Choices A, B, and C are incorrect because while they are good practices for general hygiene and infant care, they are not specifically targeted at preventing rotavirus infection.
2. The healthcare provider is completing a head-to-toe assessment for a client admitted for observation after falling out of a tree. Which finding warrants immediate intervention by the healthcare provider?
- A. Sluggish pupillary response to light
- B. Clear fluid leaking from the nose
- C. Complaint of severe headache
- D. Periorbital ecchymosis of the right eye
Correct answer: B
Rationale: Clear fluid leaking from the nose is concerning for cerebrospinal fluid leakage, which is a medical emergency requiring immediate intervention. Sluggish pupillary response to light may indicate neurological issues but is not as urgent as CSF leakage. Complaint of severe headache is important but not as critical as the possibility of CSF leakage. Periorbital ecchymosis of the right eye could be indicative of trauma but does not pose an immediate threat to the patient's life.
3. A client who received multiple antihypertensive medications experiences syncope due to a drop in blood pressure to 70/40. What is the rationale for the nurse’s decision to hold the client’s scheduled antihypertensive medication?
- A. Increased urinary clearance of the multiple medications has led to diuresis and lowered the blood pressure.
- B. The antagonistic interaction among the various blood pressure medications has reduced their effectiveness.
- C. The additive effect of multiple medications has caused the blood pressure to drop too low.
- D. The synergistic effect of the multiple medications has resulted in drug toxicity and resulting hypotension.
Correct answer: C
Rationale: The correct answer is C. When a client experiences syncope due to a significant drop in blood pressure after receiving multiple antihypertensive medications, the additive effect of these medications can cause the blood pressure to drop excessively. This additive effect can lead to hypotension, which is why the nurse decided to hold the client's scheduled antihypertensive medication. Choices A, B, and D provide incorrect rationales. Choice A mentions diuresis, which is not directly related to the drop in blood pressure due to additive medication effects. Choice B refers to an antagonistic interaction reducing effectiveness, which is not applicable in this scenario. Choice D talks about a synergistic effect leading to drug toxicity, which is not the cause of the sudden drop in blood pressure observed in the client.
4. The urinary drainage of a client with continuous bladder irrigation is becoming increasingly red. Which intervention should the nurse implement?
- A. Increase the irrigation rate
- B. Lower the head of the bed
- C. Milk the catheter tubing
- D. Evaluate for fluid overload
Correct answer: A
Rationale: Increasing the irrigation rate can help clear any blood clots and reduce the redness in the urinary drainage. This intervention aims to improve the flushing of the bladder and potentially resolve the issue. Lowering the head of the bed would not directly address the red urinary drainage. Milking the catheter tubing is not recommended as it can cause trauma to the catheter or bladder, leading to further complications. While evaluating for fluid overload is an important nursing consideration, it does not directly address the immediate concern of redness in the urinary drainage, which requires a focused intervention to clear any blockages or clots in the system.
5. Which client is at the greatest risk for developing delirium?
- A. An adult client who cannot sleep due to constant pain
- B. An older client who attempted suicide 1 month ago
- C. A young adult who takes antipsychotic medications twice a day
- D. A middle-aged woman who uses a tank for supplemental oxygen
Correct answer: B
Rationale: The correct answer is B because older adults are at higher risk for delirium, especially following a recent suicide attempt, which can be a significant stressor. Choice A is less likely to develop delirium solely due to difficulty sleeping; delirium is more complex and multifactorial. Choice C, a young adult taking antipsychotic medications, may be at risk for other conditions but not necessarily delirium. Choice D, a middle-aged woman using supplemental oxygen, is not directly linked to an increased risk of delirium compared to the older client who recently attempted suicide.
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