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. The nurse is assessing a client who has a prescription for digoxin (Lanoxin). Which finding indicates that the client is at risk for digoxin toxicity?
- A. Heart rate of 60 beats per minute
- B. Blood pressure of 120/80 mm Hg
- C. Respiratory rate of 18 breaths per minute
- D. Serum potassium level of 3.0 mEq/L
Correct answer: D
Rationale: A low serum potassium level increases the risk of digoxin toxicity. Digoxin toxicity is more likely to occur in individuals with low potassium levels because potassium is crucial for proper heart function. A heart rate of 60 beats per minute, blood pressure of 120/80 mm Hg, and respiratory rate of 18 breaths per minute are within normal ranges and do not directly indicate an increased risk of digoxin toxicity.
3. A nurse is planning care for a client who is receiving chemotherapy. Which intervention should the nurse include to manage the client's nausea?
- A. Administer an antiemetic before meals
- B. Provide frequent mouth care
- C. Encourage small, frequent meals
- D. Offer clear liquids
Correct answer: A
Rationale: Administering an antiemetic before meals is a crucial intervention to manage chemotherapy-induced nausea. Antiemetics are medications specifically designed to prevent or relieve nausea and vomiting. By administering the antiemetic before meals, the nurse can help prevent the onset of nausea, allowing the client to eat more comfortably. Providing frequent mouth care (Choice B) is important for maintaining oral hygiene but does not directly address nausea. Encouraging small, frequent meals (Choice C) and offering clear liquids (Choice D) are generally recommended for clients experiencing nausea, but administering an antiemetic is a more targeted approach to specifically address and manage the symptom.
4. A nurse is planning care for a client who is newly diagnosed with diabetes mellitus. Which instruction should the nurse include in this client’s teaching plan?
- A. Avoid all forms of sugar
- B. Check blood glucose levels once a week
- C. Rotate insulin injection sites
- D. Monitor urine ketone levels
Correct answer: C
Rationale: Rotating insulin injection sites prevents lipodystrophy and ensures proper insulin absorption.
5. A client with diabetes mellitus reports feeling dizzy and has a blood glucose level of 50 mg/dl. What action should the nurse take first?
- A. Administer 1 mg of glucagon intramuscularly
- B. Provide 15 grams of carbohydrate
- C. Check the client's blood pressure
- D. Notify the healthcare provider
Correct answer: B
Rationale: Providing 15 grams of carbohydrate is the initial action to treat hypoglycemia. When a client with diabetes mellitus experiences symptoms of hypoglycemia, such as dizziness and with a blood glucose level of 50 mg/dl, the immediate priority is to raise their blood sugar levels quickly. Administering carbohydrates, such as fruit juice or glucose tablets, is the recommended first step to reverse hypoglycemia. Administering glucagon intramuscularly is usually reserved for severe hypoglycemia when the client is unconscious or unable to swallow. Checking the client's blood pressure is important but not the primary intervention for hypoglycemia. Notifying the healthcare provider can be done after the immediate management of hypoglycemia.
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