HESI RN
HESI Medical Surgical Exam
1. What is the most common side effect of diuretics such as furosemide (Lasix)?
- A. Hypokalemia.
- B. Hyperkalemia.
- C. Hypernatremia.
- D. Hyponatremia.
Correct answer: A
Rationale: The correct answer is 'Hypokalemia.' Diuretics like furosemide increase the excretion of potassium, leading to hypokalemia as a common side effect. Hyperkalemia (choice B) is the opposite condition characterized by high potassium levels, which is not typically associated with furosemide use. Hypernatremia (choice C) is increased sodium levels, while hyponatremia (choice D) is decreased sodium levels, neither of which are the most common side effects of furosemide. Therefore, choice A is the best answer.
2. 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.
3. Which of the following is a common complication of immobility?
- A. Muscle hypertrophy.
- B. Pressure ulcers.
- C. Bone fractures.
- D. Joint stiffness.
Correct answer: B
Rationale: The correct answer is B, Pressure ulcers. Immobility can lead to pressure ulcers due to prolonged pressure on the skin, especially over bony prominences. Muscle hypertrophy (Choice A) is not a common complication of immobility; instead, muscle atrophy is more likely to occur due to disuse. Bone fractures (Choice C) can result from trauma but are not directly associated with immobility unless there is a fall or accident. Joint stiffness (Choice D) can develop due to lack of movement but is not as common or severe as pressure ulcers in cases of prolonged immobility.
4. Which of the following is a characteristic symptom of hypothyroidism?
- A. Fatigue.
- B. Weight gain.
- C. Cold intolerance.
- D. Heat intolerance.
Correct answer: C
Rationale: The correct answer is 'Cold intolerance.' Hypothyroidism is associated with a decreased metabolic rate, leading to a decreased ability to regulate body temperature and a feeling of being cold. Fatigue (Choice A) and weight gain (Choice B) are also common symptoms of hypothyroidism due to the overall slowing down of bodily functions. Heat intolerance (Choice D) is more commonly associated with hyperthyroidism, where the body's metabolism is overactive, leading to increased heat production.
5. Which of the following is a common cause of acute kidney injury?
- A. Hypertension
- B. Dehydration
- C. Infection
- D. Hypotension
Correct answer: C
Rationale: Infection is a common cause of acute kidney injury because when the body fights an infection, it activates the immune response, leading to inflammation. This inflammatory response can affect the kidneys and impair their function. While hypertension (choice A) is a risk factor for chronic kidney disease, it is not a direct cause of acute kidney injury. Dehydration (choice B) can lead to prerenal acute kidney injury due to decreased blood flow to the kidneys, but infection is a more common cause of acute kidney injury. Hypotension (choice D) can contribute to prerenal acute kidney injury, but it is not a direct cause like infection.
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