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HESI CAT Exam Test Bank
1. 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.
2. 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.
3. A client with deep vein thrombosis (DVT) in the left leg is on a heparin protocol. Which intervention is most important for the nurse to include in this client's plan of care?
- A. Observe for bleeding side effects related to heparin therapy.
- B. Assess blood pressure and heart rate at least every 4 hours.
- C. Measure calf girth to evaluate edema in the affected leg.
- D. Encourage mobilization to prevent pulmonary embolism.
Correct answer: A
Rationale: The correct answer is to 'Observe for bleeding side effects related to heparin therapy.' This is the most crucial intervention for a client with deep vein thrombosis (DVT) on a heparin protocol. Heparin, being an anticoagulant, increases the risk of bleeding as a side effect. Therefore, close monitoring for signs of bleeding, such as bruising, petechiae, or blood in stool or urine, is essential to prevent severe complications. While assessing blood pressure and heart rate (Choice B) is important, it is not as critical as monitoring for bleeding. Measuring calf girth (Choice C) may help evaluate edema but is not as vital as observing for bleeding complications. Encouraging mobilization (Choice D) is beneficial for preventing complications like pulmonary embolism, but in this scenario, monitoring for bleeding takes precedence due to the immediate risk associated with anticoagulant therapy.
4. Which assessment finding is most indicative of deep vein thrombosis (DVT) in a client’s right leg?
- A. Dorsiflexes the right foot and left foot on command
- B. A 3 by 5 cm ecchymosis area on the right calf
- C. Right calf is 3 cm larger in circumference than the left calf
- D. Bilateral lower extremities have 3+ pitting edema
Correct answer: C
Rationale: The correct answer is C because a significant difference in calf circumference between the legs is a classic sign of DVT. This is due to the obstruction of blood flow in the deep veins of the leg, leading to swelling in the affected limb. Choices A, B, and D are not typical findings of DVT. Choice A describes a neurological response, choice B indicates a bruise on the right calf, and choice D describes pitting edema in both lower extremities, which are not specific signs of DVT.
5. The nurse administers an oral antiviral to a client with shingles. Which finding is most important for the nurse to report to the healthcare provider?
- A. Decreased white blood cell count
- B. Pruritus and muscle aches
- C. Elevated liver function tests
- D. Vomiting and diarrhea
Correct answer: C
Rationale: The correct answer is C: Elevated liver function tests. When administering antivirals, especially orally, monitoring liver function tests is crucial as it may indicate liver toxicity. This finding should be reported promptly to the healthcare provider to prevent further complications. Choice A, decreased white blood cell count, may be expected with certain antivirals but is not the most critical finding in this scenario. Pruritus and muscle aches (choice B) are common side effects of antivirals and do not require immediate reporting. Vomiting and diarrhea (choice D) are also common side effects that may not be as concerning as elevated liver function tests.
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