HESI RN
HESI Medical Surgical Exam
1. After a myocardial infarction, why is the hospitalized client taught to move the legs while resting in bed?
- A. Prepare the client for ambulation.
- B. Promote urinary and intestinal elimination.
- C. Prevent thrombophlebitis and blood clot formation.
- D. Decrease the likelihood of pressure ulcer formation.
Correct answer: C
Rationale: The correct answer is C. Moving the legs helps prevent thrombophlebitis and blood clot formation by promoting venous return in clients on bed rest. This prevents stasis and clot formation in the lower extremities. Choices A, B, and D are incorrect because the primary goal of moving the legs is to prevent thrombophlebitis and blood clot formation, rather than preparing for ambulation, promoting elimination, or decreasing pressure ulcer formation. Ambulation preparation involves different exercises, urinary and intestinal elimination are not directly related to leg movements, and pressure ulcer prevention is more related to repositioning and skin care.
2. After confirming that liquids are allowed, which assessment action should the nurse consider a priority for a client who is fully awake after a gastroscopy?
- A. Listen to bilateral lung and bowel sounds.
- B. Obtain the client's pulse and blood pressure.
- C. Assist the client to the bathroom to void.
- D. Check the client's gag and swallow reflexes.
Correct answer: D
Rationale: After a gastroscopy, it is crucial for the nurse to prioritize checking the client's gag and swallow reflexes before allowing them to drink anything. This is because the effects of local anesthesia need to dissipate, and the airway's protective reflexes, including the gag and swallow reflexes, must have returned to prevent aspiration. Listening to lung and bowel sounds (Choice A) may be important but does not take precedence over ensuring the client's safety post-gastroscopy. Obtaining the client's pulse and blood pressure (Choice B) is also important but not the priority in this scenario. Assisting the client to the bathroom to void (Choice C) is a routine nursing action and is not directly related to the immediate safety concern of checking the client's gag and swallow reflexes post-gastroscopy.
3. The client with chronic renal failure is receiving education on managing fluid intake. Which of the following statements by the client indicates a need for further teaching?
- A. I can drink as much water as I want.
- B. I should increase my intake of high-sodium foods.
- C. I can skip a dialysis session if I feel tired.
- D. I can eat whatever I want as long as I take my medications.
Correct answer: C
Rationale: Choice C is the correct answer. Clients with chronic renal failure should not skip dialysis sessions, as this can lead to serious complications. Dialysis is crucial for managing fluid and electrolyte balance in these clients. Choice A is incorrect because clients with renal failure often have fluid restrictions. Choice B is incorrect as high-sodium foods can worsen fluid retention in clients with renal failure. Choice D is incorrect because dietary restrictions are important in managing chronic renal failure, and eating whatever one wants can lead to further complications.
4. 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.
5. A postmenopausal client asks the nurse why she is experiencing discomfort during intercourse. What response is best for the nurse to provide?
- A. Estrogen deficiency causes the vaginal tissues to become dry and thinner.
- B. Infrequent intercourse results in the vaginal tissues losing their elasticity.
- C. Dehydration from inadequate fluid intake causes vulva tissue dryness.
- D. Lack of adequate stimulation is the most common reason for dyspareunia.
Correct answer: A
Rationale: Estrogen deficiency in postmenopausal clients leads to a decrease in the moisture-secreting capacity of vaginal cells. This results in vaginal tissues becoming thinner, drier, and smoother, which reduces vaginal stretching and contributes to discomfort during intercourse. Choice B is incorrect because the primary reason for discomfort is not infrequent intercourse but rather physiological changes due to estrogen deficiency. Choice C is incorrect as dehydration may cause dryness but is not the primary reason for discomfort in this scenario. Choice D is incorrect as lack of stimulation is not the most common reason for dyspareunia in postmenopausal clients; estrogen deficiency is the key factor.
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