HESI RN
HESI Nutrition Practice Exam
1. A client is scheduled for a colonoscopy. Which of these instructions should the nurse provide?
- A. You should avoid eating or drinking anything after midnight the day before the test.
- B. You may have a light breakfast the morning of the test.
- C. You will need to drink a bowel preparation solution the day before the test.
- D. You will need to avoid taking any medications the day before the test.
Correct answer: C
Rationale: The correct answer is C: 'You will need to drink a bowel preparation solution the day before the test.' Before a colonoscopy, it is essential to cleanse the colon thoroughly by drinking a bowel preparation solution. This helps to ensure that the colon is clear for the procedure, allowing for better visualization and examination of the colon. Choices A, B, and D are incorrect because avoiding eating or drinking after midnight, having a light breakfast, and avoiding medications are not specific instructions related to the colonoscopy preparation process.
2. A nurse is reinforcing teaching with a group of older adults about oil-rich foods. The nurse should include which of the following foods as the equivalent of 4 tsp of oil?
- A. 1 tbsp of soft margarine
- B. ½ oz of nuts
- C. 2 tbsp of peanut butter
- D. 1 oz of sunflower seeds
Correct answer: C
Rationale: The correct answer is C: 2 tbsp of peanut butter. Two tablespoons of peanut butter is approximately equivalent to 4 teaspoons of oil, providing healthy fats in the diet. Choice A, 1 tbsp of soft margarine, is not equivalent to 4 tsp of oil as margarine contains additional ingredients. Choice B, ½ oz of nuts, and choice D, 1 oz of sunflower seeds, do not provide an equivalent amount of oil as requested in the question.
3. The nurse is reviewing laboratory results on a client with acute renal failure. Which one of the following should be reported immediately?
- A. Blood urea nitrogen 50 mg/dl
- B. Hemoglobin of 10.3 g/dl
- C. Venous blood pH 7.30
- D. Serum potassium 6 mEq/L
Correct answer: D
Rationale: A serum potassium level of 6 mEq/L indicates hyperkalemia, which can be life-threatening and requires immediate intervention. Hyperkalemia can lead to dangerous cardiac arrhythmias and must be addressed promptly. The other options are not as urgent. A blood urea nitrogen level of 50 mg/dl may indicate kidney dysfunction but does not require immediate intervention. Hemoglobin of 10.3 g/dl may suggest anemia, which needs management but is not an immediate threat. A venous blood pH of 7.30 may indicate acidosis, which is concerning but not as acutely dangerous as hyperkalemia.
4. While providing home care to a client with congestive heart failure, the nurse is asked how long diuretics must be taken. What is the nurse's best response?
- A. As you urinate more, you will need less medication to control fluid.
- B. You will have to take this medication for about a year.
- C. The medication must be continued so the fluid problem is controlled.
- D. Please talk to your health care provider about medications and treatments.
Correct answer: C
Rationale: Diuretics must be continued to control fluid retention, as stopping them can lead to worsening of congestive heart failure.
5. Discharge instructions for a client taking alprazolam (Xanax) should include which of the following?
- A. Sedative hypnotics are effective analgesics
- B. Sudden cessation of alprazolam (Xanax) can cause rebound insomnia and nightmares
- C. Caffeine beverages can increase the effect of sedative hypnotics
- D. Avoidance of excessive exercise and high temperature is recommended
Correct answer: B
Rationale: The correct answer is B. Alprazolam should not be stopped abruptly as it can cause rebound insomnia and nightmares; gradual tapering is necessary. Choice A is incorrect as sedative hypnotics are not primarily used as analgesics. Choice C is incorrect as caffeine can decrease the effects of sedative hypnotics rather than increase them. Choice D is incorrect as there is no specific recommendation to avoid excessive exercise or high temperature related to alprazolam use.
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