HESI RN
HESI RN Medical Surgical Practice Exam
1. A client admitted to the hospital with a diagnosis of acute pancreatitis has blood drawn for several serum laboratory tests. Which of the following serum amylase values, noted by the nurse reviewing the results, would be expected in this client at this time?
- A. 48 units/L
- B. 97 units/L
- C. 150 units/L
- D. 395 units/L
Correct answer: D
Rationale: The correct answer is D: "395 units/L." The normal serum amylase range is 25 to 151 units/L. In acute pancreatitis, the amylase level is greatly increased, typically exceeding the upper limit of the normal range. Choices A, B, and C fall within the normal range of serum amylase levels and would not be expected in a client with acute pancreatitis.
2. A client tells the clinic nurse about experiencing burning on urination, and assessment reveals that the client had sexual intercourse four days ago with a person who was casually met. Which action should the nurse implement?
- A. Observe the perineal area for a chancroid-like lesion
- B. Obtain a specimen of urethral drainage for culture
- C. Assess for perineal itching, erythema, and excoriation
- D. Identify all sexual partners in the last four days
Correct answer: B
Rationale: Obtaining a urethral drainage specimen for culture is crucial in diagnosing a potential sexually transmitted infection (STI) in this client. While assessing for perineal symptoms like itching, erythema, and excoriation (Choice C) may provide additional information, obtaining a culture is more definitive. Observing for a chancroid-like lesion (Choice A) is not as pertinent as obtaining a culture for a broader diagnostic approach. Identifying all sexual partners in the last four days (Choice D) is important for contact tracing but obtaining a specimen for culture takes priority in this scenario.
3. The patient will take a high dose of azithromycin after discharge from the hospital. Which statement by the patient indicates understanding of the teaching?
- A. I may take antacids 2 hours before taking this drug.
- B. I should take acetaminophen for fever or mild pain.
- C. I should expect diarrhea to be a common, mild side effect.
- D. I should avoid dairy products while taking this drug.
Correct answer: A
Rationale: The correct answer is A. Azithromycin peak levels may be reduced by antacids when taken at the same time, so patients should be cautioned to take antacids 2 hours before or 2 hours after taking the drug. Choice B is incorrect because high-dose azithromycin carries a risk for hepatotoxicity when taken with other potentially hepatotoxic drugs such as acetaminophen. Choice C is incorrect as diarrhea may indicate pseudomembranous colitis and should be reported, not expected as a common mild side effect. Choice D is incorrect; there is no restriction for dairy products while taking azithromycin.
4. The patient is receiving a high dose of tetracycline (Sumycin). Which laboratory values should the nurse monitor while caring for this patient?
- A. Blood urea nitrogen (BUN) and creatinine levels
- B. Complete blood counts
- C. Electrolytes
- D. Liver enzyme levels
Correct answer: A
Rationale: High doses of tetracyclines can lead to nephrotoxicity, especially when given along with other nephrotoxic drugs. Renal function tests, such as monitoring blood urea nitrogen (BUN) and creatinine levels, should be performed to assess for nephrotoxicity. Monitoring complete blood counts (choice B) is not directly related to tetracycline therapy. Checking electrolytes (choice C) is important but not the priority when monitoring for tetracycline-induced nephrotoxicity. Monitoring liver enzyme levels (choice D) is not typically indicated in the context of tetracycline therapy.
5. A client with chronic renal failure is prescribed a low-protein diet. The nurse should explain to the client that the purpose of this diet is to:
- A. Prevent fluid overload.
- B. Reduce the workload on the kidneys.
- C. Prevent dehydration.
- D. Maintain electrolyte balance.
Correct answer: B
Rationale: The correct answer is B: 'Reduce the workload on the kidneys.' A low-protein diet is prescribed for clients with chronic renal failure to decrease the production of urea and other nitrogenous wastes, which can accumulate in the body when the kidneys are not functioning properly. This reduction in protein intake helps to lessen the burden on the kidneys, as they may have difficulty in filtering and excreting waste products. Choice A is incorrect because fluid overload is more related to restrictions in fluid intake rather than protein intake. Choice C is incorrect as a low-protein diet does not directly prevent dehydration. Choice D is incorrect because while electrolyte balance is essential in renal failure, the primary purpose of a low-protein diet is to reduce the workload on the kidneys by limiting the production of waste products.
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