HESI LPN
CAT Exam Practice
1. A client is admitted to the intensive care unit with diabetes insipidus due to a pituitary gland tumor. Which potential complication should the nurse monitor closely?
- A. Hypokalemia
- B. Ketonuria
- C. Peripheral edema
- D. Elevated blood pressure
Correct answer: A
Rationale: The correct answer is A: Hypokalemia. In diabetes insipidus, there is excessive urination leading to fluid loss, which can result in electrolyte imbalances such as hypokalemia. Monitoring potassium levels is crucial to prevent complications like cardiac arrhythmias. Choices B, C, and D are incorrect. Ketonuria is typically seen in diabetic ketoacidosis, peripheral edema is more commonly associated with conditions like heart failure or kidney disease, and elevated blood pressure is not a direct complication of diabetes insipidus related to a pituitary gland tumor.
2. The nurse working on a mental health unit is prioritizing nursing care activities due to a staffing shortage. One practical nurse (PN) is on the unit with the nurse, and another RN is expected to arrive within two hours. Clients need to be awakened, and morning medications need to be prepared. Which plan is best for the nurse to implement?
- A. Wake all the clients and instruct them to go to the dining area for medication administration
- B. Explain to the clients that it will be necessary to cooperate until another RN arrives
- C. Ask the PN to administer medications as clients are awakened so both nurses are available
- D. Allow the clients to sleep until a third staff person can assist with unit activities
Correct answer: C
Rationale: The best plan for the nurse to implement is to ask the PN to administer medications as clients are awakened. This approach ensures that medication administration and client care are efficiently managed despite the staffing shortage. Option A is incorrect as it may disrupt the workflow and create unnecessary chaos. Option B is not the best choice as it does not address the immediate need for medication administration. Option D is not ideal as it delays client care until additional staff arrive, potentially compromising patient safety and timely medication administration.
3. A client is admitted with the diagnosis of Wernicke’s syndrome. What assessment finding should the nurse use in planning the client’s care?
- A. Right lower abdominal pain
- B. Confusion
- C. Depression
- D. Peripheral neuropathy
Correct answer: B
Rationale: Confusion is a key symptom of Wernicke’s syndrome, which is due to thiamine deficiency. Wernicke’s syndrome is characterized by a triad of symptoms known as the classic triad, which includes confusion, ataxia, and ophthalmoplegia. Right lower abdominal pain, depression, and peripheral neuropathy are not typically associated with Wernicke’s syndrome, making them incorrect choices for this question.
4. 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.
5. A male client who fell into the lake while fishing and was submerged for about 3 min was successfully resuscitated by his friends. He was brought to the Emergency Department for evaluation and was admitted for a 24-hour uneventful hospital stay. What follow-up instruction should the nurse give?
- A. Avoid smoke-filled environments
- B. Seek medical care promptly if a fever develops
- C. Increase oral fluids if a cough becomes productive
- D. Schedule frequent rest periods
Correct answer: B
Rationale: After being submerged in water, the client should be instructed to seek medical care promptly if a fever develops since complications may arise later. Choices A, C, and D are not directly related to the potential complications from submersion in water and are therefore incorrect. Avoiding smoke-filled environments, increasing oral fluids for a productive cough, and scheduling frequent rest periods are not the priority concerns in this scenario.
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