HESI RN
HESI Medical Surgical Practice Exam
1. A client is receiving continuous ambulatory peritoneal dialysis. Which of the following statements indicates the need for more teaching by the nurse?
- A. I should take all my medications every morning.
- B. The catheter should always remain in place.
- C. The catheter should be flushed daily with sterile saline.
- D. If I gain 2 pounds, I should skip dialysis that day.
Correct answer: D
Rationale: The correct answer is D. Gaining weight is a sign that the client may be retaining fluid, indicating a need for dialysis to remove excess fluid. Skipping dialysis based on weight gain can lead to fluid overload, electrolyte imbalances, and other serious complications. Choices A, B, and C are all correct statements regarding peritoneal dialysis care: taking medications as prescribed is essential for overall health, ensuring the catheter remains in place is crucial to prevent infection, and flushing the catheter with sterile saline daily helps maintain its patency and reduce the risk of infections.
2. A client with chronic obstructive pulmonary disease (COPD) presented with shortness of breath. Oxygen therapy was started at 2 liters/minute via nasal cannula. The arterial blood gases (ABGs) after treatment were pH 7.36, PaO2 62, PaCO2 59, and HCO3. Which statement describes the most likely cause of the simultaneous increase in both the PaO2 and the PaCO2?
- A. The hypercapnia resulted from the rapid respirations.
- B. The hypoxic drive was reduced by the oxygen therapy.
- C. The client had a pneumothorax which restricted ventilation.
- D. The client had a pulmonary embolism that reduced perfusion.
Correct answer: B
Rationale: In patients with COPD, oxygen therapy can reduce the hypoxic drive, which is the primary stimulus for breathing in these individuals. By providing supplemental oxygen, the hypoxic drive is diminished, resulting in decreased respiratory effort. As a consequence, the PaO2 may increase due to the supplemental oxygen, but this can lead to a decrease in the respiratory drive and subsequent retention of carbon dioxide, causing an increase in PaCO2 levels. Option A is incorrect because rapid respirations would typically lower PaCO2 levels. Option C is incorrect as a pneumothorax would lead to impaired gas exchange and decreased PaO2 levels without necessarily affecting PaCO2 levels. Option D is incorrect as a pulmonary embolism would typically result in ventilation-perfusion mismatch and decreased PaO2 levels without directly impacting PaCO2 levels.
3. A client with diabetes is taking insulin lispro (Humalog) injections. The nurse should advise the client to eat:
- A. Within 10 to 15 minutes after the injection.
- B. 1 hour after the injection.
- C. At any time, because timing of meals with lispro injections is unnecessary.
- D. 2 hours before the injection.
Correct answer: A
Rationale: The correct answer is to eat within 10 to 15 minutes after the injection. Insulin lispro, also known as Humalog, is a rapid-acting insulin that starts working very quickly. Eating shortly after the injection helps match the food intake with the insulin action, reducing the risk of hypoglycemia. Choice B is incorrect because waiting 1 hour after the injection may lead to a mismatch between insulin activity and food intake. Choice C is incorrect as timing meals with lispro injections is essential to optimize glycemic control. Choice D is incorrect as eating 2 hours before the injection is not in alignment with the rapid action of insulin lispro and may lead to fluctuations in blood sugar levels.
4. A client with elevated levels of antidiuretic hormone (ADH) triggers the release of this hormone due to which disorder?
- A. Pneumonia
- B. Dehydration
- C. Renal failure
- D. Edema
Correct answer: B
Rationale: Antidiuretic hormone (ADH) increases tubular permeability to water, causing more water absorption into the capillaries. ADH is released in response to a rising extracellular fluid osmolarity, such as in dehydration. Pneumonia, renal failure, and edema do not typically lead to the release of ADH. Pneumonia is an inflammatory lung condition, renal failure affects kidney function, and edema is the accumulation of excess fluid in the tissues, none of which directly stimulate the release of ADH.
5. A client with chronic renal failure is receiving epoetin alfa (Epogen) to treat anemia. The nurse should assess the client for which of the following side effects?
- A. Hypertension.
- B. Hypotension.
- C. Infection.
- D. Edema.
Correct answer: A
Rationale: The correct answer is A: Hypertension. Epoetin alfa (Epogen) is a medication used to treat anemia in clients with chronic renal failure. One common side effect of this medication is hypertension. Epoetin alfa stimulates red blood cell production, which can lead to an increase in blood pressure. Therefore, the nurse should closely monitor the client for signs and symptoms of hypertension while on this medication. Choices B, C, and D are incorrect. Hypotension is not typically associated with epoetin alfa administration. Infection is not a direct side effect of epoetin alfa. Edema is also not a common side effect of this medication.
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