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. Why is the combination drug trimethoprim-sulfamethoxazole (TMP-SMX) necessary?
- A. To broaden the antibacterial spectrum.
- B. To decrease bacterial resistance.
- C. To improve the taste.
- D. To minimize toxic effects.
Correct answer: B
Rationale: The correct answer is B: To decrease bacterial resistance. Trimethoprim-sulfamethoxazole (TMP-SMX) is a combination drug used to prevent bacterial resistance to sulfonamides. It works by targeting different steps in the bacterial metabolic pathway, making it harder for bacteria to develop resistance. Choice A is incorrect because the combination does not broaden the antibacterial spectrum; instead, it enhances effectiveness against specific bacteria. Choice C is incorrect as taste improvement is not the primary reason for combining these drugs. Choice D is incorrect because while combination therapy can sometimes help minimize toxic effects, the primary purpose in this case is to address bacterial resistance.
3. A client is being prepared for a colonoscopy. Into which position does the nurse assist the client for the procedure?
- A. Left Sims' position
- B. Lithotomy position
- C. Knee-chest position
- D. Right Sims' position
Correct answer: A
Rationale: During a colonoscopy, the client is positioned in the left Sims' position. This position is chosen as it optimally utilizes the client’s anatomy to facilitate the introduction of the colonoscope. The lithotomy position (Choice B) is commonly used for gynecological exams, not colonoscopies. The knee-chest position (Choice C) is typically employed for rectal examinations or certain surgical procedures, not colonoscopies. The right Sims' position (Choice D) is a less common position for colonoscopy compared to the left Sims' position.
4. What types of medications should the healthcare provider expect to administer to a client during an acute respiratory distress episode?
- A. Vasodilators and hormones.
- B. Analgesics and sedatives.
- C. Anticoagulants and expectorants.
- D. Bronchodilators and steroids.
Correct answer: D
Rationale: During an acute respiratory distress episode, the priority is to widen air passages, increase air space, and reduce alveolar membrane inflammation. Therefore, the client would likely require bronchodilators to open up the airways and steroids to reduce inflammation. Vasodilators and hormones (Choice A) are not typically indicated in this situation. Analgesics and sedatives (Choice B) may be used for pain management and anxiety but are not primary treatments for respiratory distress. Anticoagulants and expectorants (Choice C) are not the main medications used during an acute respiratory distress episode and may not address the immediate needs of the client.
5. The client is being taught about the best time to plan sexual intercourse in order to conceive. Which information should be provided?
- A. Two weeks before menstruation.
- B. Vaginal mucous discharge is thick.
- C. Low basal temperature.
- D. First thing in the morning.
Correct answer: A
Rationale: The correct answer is A: 'Two weeks before menstruation.' Ovulation typically occurs 14 days before menstruation begins during a typical 28-day cycle. To increase the chances of conception, sexual intercourse should occur within 24 hours of ovulation. High estrogen levels during ovulation lead to changes in vaginal mucous discharge, making it more 'slippery' and stretchy. Basal temperature rises during ovulation. The timing of intercourse during the day is less significant than ensuring it happens around ovulation. The other options are incorrect because planning intercourse two weeks before menstruation is likely to miss the fertile window, thick vaginal mucous discharge indicates ovulation is approaching, and low basal temperature is not indicative of the fertile period.
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