HESI RN
HESI Medical Surgical Practice Exam
1. In a patient with chronic kidney disease, which of the following is a common electrolyte imbalance?
- A. Hyperkalemia.
- B. Hypokalemia.
- C. Hypernatremia.
- D. Hyponatremia.
Correct answer: A
Rationale: Hyperkalemia is a common electrolyte imbalance in chronic kidney disease. In chronic kidney disease, the kidneys' reduced function leads to the decreased excretion of potassium, resulting in elevated serum potassium levels. This can be dangerous as hyperkalemia can lead to life-threatening arrhythmias. Hypokalemia (Choice B) is less common in chronic kidney disease as the impaired kidneys tend to retain potassium. Hypernatremia (Choice C) is more commonly seen in conditions such as dehydration, not primarily in chronic kidney disease. Hyponatremia (Choice D) is also possible in chronic kidney disease but is less common compared to hyperkalemia.
2. The nurse is preparing to administer the first dose of hydrochlorothiazide (HydroDIURIL) 50 mg to a patient who has a blood pressure of 160/95 mm Hg. The nurse notes that the patient had a urine output of 200 mL in the past 12 hours. The nurse will perform which action?
- A. Administer the medication as ordered.
- B. Encourage the patient to drink more fluids.
- C. Hold the medication and request an order for serum BUN and creatinine.
- D. Request an order for serum electrolytes and administer the medication.
Correct answer: C
Rationale: The correct action is to hold the medication and request an order for serum BUN and creatinine. Thiazide diuretics, such as hydrochlorothiazide, are contraindicated in renal failure. In this case, the patient has oliguria, which is a reduced urine output, indicating potential renal insufficiency. Before administering the diuretic, it is crucial to evaluate the patient's renal function through serum BUN and creatinine levels. Encouraging the patient to drink more fluids (Choice B) may not address the underlying issue of renal function. Administering the medication as ordered (Choice A) without assessing renal function can be harmful. Requesting serum electrolytes and administering the medication (Choice D) overlooks the need for a specific evaluation of renal function in this scenario.
3. The client with chronic renal failure is receiving instruction on dietary restrictions. Which of the following food items should the client be instructed to avoid?
- A. Bananas.
- B. Apples.
- C. Rice.
- D. Potatoes.
Correct answer: A
Rationale: The correct answer is A: Bananas. Bananas are high in potassium, and individuals with chronic renal failure are often advised to limit potassium intake to prevent hyperkalemia. Apples, rice, and potatoes are lower in potassium and can be included in moderation in the diet of clients with chronic renal failure.
4. The patient is receiving a high dose of intravenous azithromycin to treat an infection and taking acetaminophen for pain. The nurse should expect to review which lab values when monitoring for this drug’s side effects?
- A. Complete blood counts
- B. Electrolytes
- C. Liver enzymes
- D. Urinalysis
Correct answer: C
Rationale: When a patient is receiving a high dose of intravenous azithromycin, which is a macrolide antibiotic, in combination with acetaminophen, a potentially hepatotoxic drug, the nurse should monitor liver enzymes. High doses of macrolides when taken with hepatotoxic drugs like acetaminophen can lead to hepatotoxicity. Reviewing liver enzymes helps in early detection of liver damage. Complete blood counts (Choice A) are not typically affected by azithromycin or acetaminophen. Electrolytes (Choice B) are not directly impacted by these medications. Urinalysis (Choice D) is not specifically indicated for monitoring the side effects of azithromycin and acetaminophen combination therapy.
5. The nurse is instructing the client on insulin administration. The client's morning dose of insulin is 10 units of regular and 22 units of NPH. The nurse checks the dose accuracy with the client. The nurse determines that the client has prepared the correct dose when the syringe reads how many units?
- A. 10 units.
- B. 22 units.
- C. 32 units.
- D. 24 units.
Correct answer: C
Rationale: The correct dose would be 32 units, which is the sum of 10 units of regular insulin and 22 units of NPH. It is essential to combine the doses of both types of insulin to ensure the client administers the correct total dose. Choices A and B represent the individual doses of regular and NPH insulin, respectively, not the combined total. Choice D is incorrect as it does not reflect the sum of both insulin doses.
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