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. 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.
3. The nurse has been teaching a client with Insulin Dependent Diabetes Mellitus. Which statement by the client indicates a need for further teaching?
- A. I use a sliding scale to adjust regular insulin to my sugar level.
- B. Since my eyesight is so bad, I ask the nurse to fill several syringes.
- C. I keep my regular insulin bottle in the refrigerator.
- D. I always make sure to shake the NPH bottle hard to mix it well.
Correct answer: D
Rationale: Shaking the NPH insulin bottle hard can cause air bubbles and affect dosing accuracy; it should be rolled gently instead.
4. When assessing a client for signs and symptoms of a fluid volume deficit, the nurse would be most concerned with which finding?
- A. Blood pressure of 90/60 mm Hg
- B. Heart rate of 110 beats per minute
- C. Respiratory rate of 24 breaths per minute
- D. Urine output of 30 mL per hour
Correct answer: A
Rationale: Corrected Rationale: A low blood pressure of 90/60 mm Hg is a significant finding indicating fluid volume deficit. In fluid volume deficit, the body tries to compensate by increasing heart rate (choice B) to maintain cardiac output. Respiratory rate (choice C) may increase as a compensatory mechanism, but it is not the primary concern in fluid volume deficit. Urine output (choice D) may decrease in response to fluid volume deficit, but it is a late sign and not the most concerning finding.
5. The nurse is caring for a client in atrial fibrillation. The atrial heart rate is 250, and the ventricular rate is controlled at 75. Which of the following findings is cause for the most concern?
- A. Diminished bowel sounds
- B. Loss of appetite
- C. A cold, pale lower leg
- D. Tachypnea
Correct answer: C
Rationale: A cold, pale lower leg is the most concerning finding as it indicates poor blood flow, potentially suggesting a serious circulatory problem that requires immediate attention. Diminished bowel sounds, loss of appetite, and tachypnea may be relevant but are not as indicative of a critical circulatory issue as a cold, pale lower leg.
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