HESI RN
Evolve HESI Medical Surgical Practice Exam
1. The nurse is teaching the main principles of hemodialysis to a client with chronic kidney disease. Which statement by the client indicates a need for further teaching by the nurse?
- A. My sodium level changes due to the movement from the blood into the dialysate.
- B. Dialysis works by the movement of wastes from higher to lower concentration.
- C. Extra fluid can be pulled from the blood by osmosis.
- D. The dialysate is similar to blood but without any toxins.
Correct answer: B
Rationale: The correct answer is B because dialysis works by the movement of solutes from an area of higher concentration to an area of lower concentration, which is known as diffusion. The other statements are accurate: A correctly describes the movement of sodium during hemodialysis, C explains the removal of excess fluid by osmosis, and D highlights the purpose of the dialysate in removing toxins from the blood.
2. A client's laboratory findings indicate elevations in thyroxine and triiodothyronine hormones. The nurse suspects that the client may have hyperthyroidism. Which assessment finding is most often associated with hyperthyroidism?
- A. Periorbital edema.
- B. Atrophied thyroid gland.
- C. Increased pulse rate.
- D. Diarrhea stools.
Correct answer: C
Rationale: Increased pulse rate is commonly associated with hyperthyroidism due to the increased metabolic rate. Periorbital edema (Choice A) is more commonly associated with conditions like nephrotic syndrome or heart failure, not hyperthyroidism. Atrophied thyroid gland (Choice B) is not typically an assessment finding for hyperthyroidism as the gland is usually enlarged in this condition. Diarrhea stools (Choice D) can occur in hyperthyroidism, but it is not the most common assessment finding associated with the condition.
3. A nurse is assessing a postoperative client on an hourly basis. The nurse notes that the client’s urine output for the past hour was 25 mL. Based on this finding, the nurse first:
- A. Calls the physician
- B. Increases the rate of the IV infusion
- C. Checks the client’s overall intake and output record
- D. Administers a 250-mL bolus of normal saline solution (0.9%)
Correct answer: C
Rationale: Clients are at risk of hypovolemia postoperatively, and decreased urine output can be an early sign. However, to accurately interpret this finding, the nurse must assess the overall fluid balance by checking the client’s intake and output records. Increasing the IV infusion rate or administering a bolus of normal saline solution without a physician's order would not be appropriate as these interventions require a prescription. The physician should be notified once the nurse has collected all necessary assessment data, including fluid status and vital signs.
4. A client is experiencing diarrhea. For which acid-base disorder should the nurse assess the client?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: When a client experiences diarrhea, the loss of bicarbonate-rich fluids from the body leads to a decrease in the bicarbonate levels in the blood, resulting in metabolic acidosis. Metabolic alkalosis (choice B) is characterized by an increase in bicarbonate levels, which is not typically associated with diarrhea. Respiratory acidosis (choice C) is caused by retention of carbon dioxide, while respiratory alkalosis (choice D) results from excessive exhalation of carbon dioxide, neither of which are directly related to diarrhea. Therefore, the correct answer is metabolic acidosis (choice A) in the context of diarrhea.
5. The client with peripheral vascular disease (PVD) and a history of heart failure may have a low tolerance for exercise due to:
- A. Decreased blood flow.
- B. Increased blood flow.
- C. Decreased pain.
- D. Increased blood viscosity.
Correct answer: A
Rationale: The correct answer is A: Decreased blood flow. In clients with peripheral vascular disease (PVD) and a history of heart failure, decreased blood flow due to heart failure can result in reduced oxygen delivery to tissues. This reduced oxygen supply can lead to low exercise tolerance. Increased blood flow (Choice B) is not typically associated with reduced exercise tolerance in these clients. Decreased pain (Choice C) and increased blood viscosity (Choice D) are not the primary factors contributing to low exercise tolerance in this scenario.
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