HESI RN
HESI RN CAT Exam Quizlet
1. A client with cirrhosis is taking lactulose (Cephulac). Which finding indicates that the lactulose is having the desired effect?
- A. Two to three soft bowel movements per day
- B. Increased serum ammonia levels
- C. Decreased white blood cell count
- D. Soft, formed stool twice a day
Correct answer: A
Rationale: The correct answer is A: 'Two to three soft bowel movements per day.' Lactulose is prescribed to produce soft, regular bowel movements to reduce ammonia levels in clients with cirrhosis. This helps in preventing hepatic encephalopathy. Option B is incorrect because increased serum ammonia levels would indicate that lactulose is not effectively reducing ammonia levels. Option C is incorrect because lactulose does not directly affect white blood cell counts. Option D is incorrect because soft, formed stools twice a day may not be frequent enough to effectively reduce ammonia levels in clients with cirrhosis.
2. A client in the oliguric phase of acute renal failure (ARF) has a 24-hour urine output of 400 ml. How much oral intake should the nurse allow this client to have during the next 24 hours?
- A. Encourage oral fluids as tolerated
- B. Decrease oral intake to 200 ml
- C. Allow the client to have exactly 400 ml oral intake
- D. Limit oral intake to 900 to 1,000 ml
Correct answer: D
Rationale: In the oliguric phase of acute renal failure (ARF), the goal is to prevent fluid overload. Since the client has a low urine output of 400 ml in 24 hours, limiting oral intake to 900 to 1,000 ml is appropriate. Encouraging unrestricted oral fluids (Choice A) can exacerbate fluid overload. Decreasing oral intake to 200 ml (Choice B) would be too restrictive and may lead to dehydration. Allowing the client to have exactly 400 ml oral intake (Choice C) would not account for other sources of fluid intake and output, potentially resulting in fluid imbalance.
3. A male client with diabetes mellitus takes Novolin 70/30 insulin before meals and azithromycin (Zithromax) PO daily, using medication he brought from home. When the nurse delivers his breakfast tray, the client tells the nurse that he took his insulin but forgot to take his daily dose of the Zithromax an hour before breakfast as instructed. What action should the nurse implement?
- A. Offer to obtain a new breakfast tray in an hour so the client can take the Zithromax
- B. Instruct the client to eat his breakfast and take the Zithromax two hours after eating
- C. Tell the client to skip that day's dose and resume taking the Zithromax the next day
- D. Provide a PRN dose of an antacid to take with the Zithromax right after breakfast
Correct answer: B
Rationale: To ensure the effectiveness of the antibiotic and manage blood glucose levels, the client should take the Zithromax two hours after eating. Option A is incorrect because obtaining a new breakfast tray is not necessary to administer the missed dose. Option C is incorrect as skipping a dose can lead to decreased effectiveness of the antibiotic. Option D is incorrect because providing an antacid is not indicated in this situation.
4. A nurse is planning care for a client who has a new prescription for metoprolol (Lopressor). Which assessment finding should the nurse report to the healthcare provider before administering the medication?
- A. Heart rate of 50 beats per minute
- B. Blood pressure of 90/60 mm Hg
- C. Respiratory rate of 20 breaths per minute
- D. Temperature of 99°F (37.2°C)
Correct answer: A
Rationale: A heart rate of 50 beats per minute is a concerning finding that should be reported before administering metoprolol. Metoprolol is a beta-blocker that can further lower the heart rate, so a heart rate of 50 bpm indicates potential bradycardia, which is a contraindication for administering this medication. Choices B, C, and D are within normal ranges and do not pose immediate concerns related to metoprolol administration.
5. What assessment technique should the nurse use to monitor a client for a common untoward effect of phenytoin (Dilantin)?
- A. Bladder palpation
- B. Inspection of the mouth
- C. Blood glucose monitoring
- D. Auscultation of breath sounds
Correct answer: B
Rationale: The correct answer is B: Inspection of the mouth. This assessment technique is crucial for monitoring gingival hyperplasia, a common side effect of phenytoin. Bladder palpation (choice A) is not relevant to monitoring for phenytoin's side effects. Blood glucose monitoring (choice C) is important for clients with diabetes but is not specifically related to phenytoin. Auscultation of breath sounds (choice D) is more relevant for assessing respiratory conditions, not side effects of phenytoin.
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