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. What information will the nurse provide when counseling a patient starting a sulfonamide drug for a urinary tract infection?
- A. Drink several quarts of water daily.
- B. If stomach upset occurs, avoid taking antacids.
- C. Limit sun exposure to avoid skin reactions.
- D. Report any sore throat promptly.
Correct answer: A
Rationale: The correct answer is A: Drink several quarts of water daily. This advice aims to prevent crystalluria, a potential side effect of sulfonamide drugs. Option B is incorrect because antacids should not be taken with sulfonamides as they can decrease drug absorption. Option C is incorrect as sulfonamides can increase sensitivity to sunlight, not requiring sun exposure limitations but sun protection measures. Option D is incorrect because a sore throat could indicate a more serious adverse effect and should be promptly reported for evaluation.
3. A client has a chest drainage system in place. The fluid in the water seal chamber rises and falls during inspiration and expiration. The nurse interprets this finding as an indication that:
- A. The tube is patent
- B. There is probably a kink in the tubing
- C. Suction should be added to the system
- D. The client is retaining airway secretions
Correct answer: A
Rationale: The correct answer is A: 'The tube is patent.' When the fluid in the water seal chamber rises and falls during inspiration and expiration, it indicates that the chest tube is patent, allowing for proper drainage. Choice B is incorrect because a kink in the tubing would obstruct the flow of fluid, leading to abnormal fluctuations in the water seal chamber. Choice C is incorrect as adding suction to the system is not indicated based on the described finding. Choice D is incorrect as the rising and falling of fluid in the water seal chamber is not indicative of the client retaining airway secretions.
4. Blood for arterial blood gas determinations is drawn from a client with pneumonia, and testing reveals a pH of 7.45, PCO2 of 30 mm Hg, and HCO3 of 19 mEq/L. The nurse interprets these results as indicative of:
- A. Compensated metabolic acidosis
- B. Compensated respiratory alkalosis
- C. Uncompensated metabolic alkalosis
- D. Uncompensated respiratory acidosis
Correct answer: B
Rationale: The correct answer is 'Compensated respiratory alkalosis.' In this case, the client's pH is within the normal range (7.35-7.45), indicating compensation. The low PCO2 (30 mm Hg) suggests respiratory alkalosis, while the low HCO3 (19 mEq/L) is also consistent with a compensatory response. Therefore, the client has a primary respiratory alkalosis that is being compensated for by metabolic acidosis. Choices A, C, and D are incorrect because they do not fit the pattern of the given blood gas values, which indicate respiratory alkalosis with metabolic compensation.
5. The nurse is obtaining a health history from a new client who has a history of kidney stones. Which statement by the client indicates an increased risk for renal calculi?
- A. Eats a vegetarian diet with cheese 2 to 3 times a day
- B. Experiences additional stress since adopting a child
- C. Jogs more frequently than usual daily routine
- D. Drinks several bottles of carbonated water daily
Correct answer: D
Rationale: The correct answer is D. Drinking several bottles of carbonated water daily may contribute to renal calculi formation due to the high mineral content. Carbonated drinks can increase the risk of kidney stones due to their high levels of phosphoric acid and caffeine, which can lead to the formation of crystals in the urine. Choices A, B, and C are less likely to directly contribute to an increased risk of renal calculi compared to the excessive consumption of carbonated water.
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