HESI LPN
HESI CAT Exam
1. A client admitted to the intensive care unit with syndrome of inappropriate antidiuretic hormone (SIADH) has developed osmotic demyelination. Which intervention should the nurse implement first?
- A. Patch one eye.
- B. Reorient often.
- C. Range of motion.
- D. Evaluate swallow
Correct answer: B
Rationale: Frequent reorientation is crucial for clients with neurological impairments from osmotic demyelination to prevent confusion and assist with orientation. It helps maintain a proper sense of time, place, and person, reducing disorientation. Patching one eye (Choice A) is not a priority intervention for osmotic demyelination and does not address the immediate need for reorientation. Range of motion exercises (Choice C) may be important for overall care, but reorientation takes precedence due to its impact on neurological functioning. Evaluating swallow (Choice D) is not the primary intervention needed for osmotic demyelination; it is essential but not the first priority.
2. Which action should the school nurse take first when conducting a screening for scoliosis?
- A. Compare dorsal trunk measurements
- B. Have the individual extend arms over the head for visualization
- C. Inspect for symmetrical shoulder height
- D. Observe weight-bearing on each leg
Correct answer: C
Rationale: Inspecting for symmetrical shoulder height is a crucial initial step in screening for scoliosis. Asymmetry in shoulder height can indicate the presence of spinal curvature, which is a key indicator of scoliosis. This assessment is prioritized as it provides a visual clue to potential spinal abnormalities. Choices A, B, and D are not the first steps in scoliosis screening. Choice A involves a more detailed measurement that is not the primary visual indicator for scoliosis; choice B is not a primary indicator of scoliosis but can be used for further examination, and choice D is not directly related to identifying spinal curvature.
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. A client who sustained a pellet gun injury with a resulting comminuted skull fracture is admitted overnight for observation. Which assessment finding obtained two hours after admission necessitates immediate intervention?
- A. The client complains of a throbbing headache rated 10 (on a scale of 1 to 10)
- B. The client repeatedly falls asleep while talking with the nurse
- C. The entry site has a slow trickle of bright red blood
- D. The entry site appears reddened and edematous
Correct answer: B
Rationale: In a client with a pellet gun injury and a comminuted skull fracture, repeatedly falling asleep while talking with the nurse is a concerning sign. It can indicate increased intracranial pressure or a deteriorating condition, requiring immediate intervention. The other options, such as a throbbing headache (choice A), slow trickle of bright red blood at the entry site (choice C), or reddened and edematous entry site (choice D), while important to monitor, do not directly indicate a need for immediate intervention as much as the client falling asleep repeatedly while talking does.
5. To evaluate the client's therapeutic response to lactulose for signs of hepatic encephalopathy, which assessment should the nurse obtain?
- A. Level of consciousness
- B. Percussion of abdomen
- C. Serum electrolytes
- D. Blood glucose
Correct answer: A
Rationale: The correct answer is A: Level of consciousness. Monitoring the client's level of consciousness is essential in evaluating the effectiveness of lactulose in treating hepatic encephalopathy. Lactulose helps reduce blood ammonia levels by promoting the excretion of ammonia in the stool, thereby improving the client's mental status. Assessing the client's level of consciousness helps determine if the medication is effectively managing hepatic encephalopathy symptoms. Choices B, percussion of the abdomen, and D, blood glucose, are not directly related to evaluating the therapeutic response to lactulose for hepatic encephalopathy. Choice C, serum electrolytes, while important in overall patient care, is not the primary assessment to determine lactulose's effectiveness in treating hepatic encephalopathy.
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