HESI RN
HESI Medical Surgical Exam
1. A client with Diabetes Insipidus (DI) is being cared for by a nurse. Which data warrants the most immediate intervention by the nurse?
- A. Serum sodium of 185 mEq/L (185 mmol/L)
- B. Dry skin with poor skin turgor
- C. Apical rate of 110 beats per minute
- D. Polyuria and excessive thirst
Correct answer: A
Rationale: A serum sodium level of 185 mEq/L (185 mmol/L) is dangerously high and indicates severe dehydration, requiring immediate intervention to prevent neurological damage. The other options are not as critical as high serum sodium levels, which can lead to serious complications such as seizures, coma, and death if not promptly addressed. Dry skin with poor skin turgor and polyuria with excessive thirst are common findings in clients with Diabetes Insipidus and should be managed but do not pose an immediate threat to the client's life. An apical heart rate of 110 beats per minute may indicate tachycardia, which could be related to dehydration but is not as urgent as addressing the severe hypernatremia.
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 recovering from extracorporeal shock wave lithotripsy for renal calculi has an ecchymotic area on the right lower back. What action should the nurse take?
- A. Administer fresh-frozen plasma.
- B. Apply an ice pack to the site.
- C. Place the client in the prone position.
- D. Obtain serum coagulation test results.
Correct answer: B
Rationale: After extracorporeal shock wave lithotripsy, ecchymosis can occur due to bleeding into the tissues from the shock waves. Applying an ice pack helps reduce the extent and discomfort of bruising. Administering fresh-frozen plasma and obtaining coagulation test results are not necessary as ecchymosis after this procedure is common and does not indicate a bleeding disorder that requires immediate intervention. Placing the client in the prone position will not address the bleeding or bruising in this situation.
4. When conducting discharge teaching for a client diagnosed with diverticulitis, which diet instruction should the nurse include?
- A. Have small, frequent meals and sit up for at least two hours after meals
- B. Eat a bland diet and avoid spicy foods
- C. Eat a high-fiber diet and increase fluid intake
- D. Eat a soft diet with increased intake of milk and milk products
Correct answer: C
Rationale: For a client diagnosed with diverticulitis, the nurse should instruct them to eat a high-fiber diet and increase fluid intake. This diet helps in managing diverticulitis by promoting bowel regularity and preventing complications such as diverticular inflammation or infection. Choice A of having small, frequent meals and sitting up for at least two hours after meals may be beneficial for gastroesophageal reflux disease but is not specific to diverticulitis. Choice B of eating a bland diet and avoiding spicy foods is not the preferred recommendation for diverticulitis management. Choice D of eating a soft diet with increased intake of milk and milk products may not provide enough fiber to aid in diverticulitis management, and the increased intake of dairy products may worsen symptoms in some individuals.
5. 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.
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