HESI RN
HESI Medical Surgical Test Bank
1. The nurse is monitoring a client who is receiving continuous ambulatory peritoneal dialysis. The nurse should notify the physician of which of the following findings?
- A. Clear dialysate outflow.
- B. Cloudy dialysate outflow.
- C. Decreased urine output.
- D. Increased blood pressure.
Correct answer: B
Rationale: Cloudy dialysate outflow is an indication of peritonitis, a serious complication of peritoneal dialysis that requires immediate medical attention. Clear dialysate outflow is a normal finding indicating proper dialysis function and should not raise concern. Decreased urine output may be expected in a client undergoing dialysis due to the removal of excess fluids from the body. Increased blood pressure is a common complication in clients with kidney disease but is not directly related to cloudy dialysate outflow.
2. The nurse is teaching a nursing student about the minimal effective concentration (MEC) of antibiotics. Which statement by the nursing student indicates understanding of this concept?
- A. A serum drug level greater than the MEC ensures that the drug is bacteriostatic.
- B. A serum drug level greater than the MEC broadens the spectrum of the drug.
- C. A serum drug level greater than the MEC helps eradicate bacterial infections.
- D. A serum drug level greater than the MEC increases the therapeutic index.
Correct answer: C
Rationale: The MEC is the minimum amount of drug needed to halt the growth of a microorganism. A level greater than the MEC helps eradicate infections. Drugs at or above the MEC are usually bactericidal, not bacteriostatic. Therefore, choice A is incorrect. Broadening the spectrum of a drug refers to its range of activity against different microorganisms, which is not directly related to MEC. Thus, choice B is incorrect. Increasing the therapeutic index involves maximizing the effectiveness of a drug while minimizing its toxicity, which is not specifically related to MEC. Therefore, choice D is also incorrect.
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. In a patient with asthma, which of the following is the most important indicator of respiratory function?
- A. Oxygen saturation.
- B. Respiratory rate.
- C. Arterial blood gases.
- D. Peak expiratory flow rate.
Correct answer: D
Rationale: The peak expiratory flow rate is the most important indicator of respiratory function in asthma because it measures how quickly air can be exhaled, reflecting the severity of airflow limitation. Oxygen saturation (Choice A) is important in assessing oxygenation, but it does not directly reflect respiratory function. Respiratory rate (Choice B) can provide information on breathing patterns but does not quantify airflow limitation. Arterial blood gases (Choice C) give information about gas exchange but are not as specific for assessing asthma control and severity as peak expiratory flow rate.
5. A client has just regained bowel sounds after undergoing surgery. The physician has prescribed a clear liquid diet for the client. Which of the following items should the nurse ensure is available in the client’s room before allowing the client to drink?
- A. Straw
- B. Napkin
- C. Oxygen saturation monitor
- D. Suction equipment
Correct answer: D
Rationale: After surgery, when a client has just regained bowel sounds and is prescribed a clear liquid diet, the nurse needs to consider the possibility of impaired swallow reflexes due to anesthesia effects, leading to an increased risk of aspiration. Despite checking the gag and swallow reflexes before offering fluids, having suction equipment readily available in the client's room is essential to manage any potential aspiration risk. Therefore, the correct answer is suction equipment (choice D). Choices A, B, and C are incorrect because while a straw, napkin, and oxygen saturation monitor may be useful in other situations, they are not directly related to managing the risk of aspiration associated with offering fluids to a client post-surgery.
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