HESI RN
HESI Medical Surgical Specialty Exam
1. A client who is postmenopausal and has had two episodes of bacterial urethritis in the last 6 months asks, “I never have urinary tract infections. Why is this happening now?†How should the nurse respond?
- A. Your immune system becomes less effective as you age.
- B. Low estrogen levels can make the tissue more susceptible to infection.
- C. You should be more careful with your personal hygiene in this area.
- D. It is likely that you have an untreated sexually transmitted disease.
Correct answer: B
Rationale: Low estrogen levels in postmenopausal women decrease moisture and secretions in the perineal area, causing tissue changes that predispose them to infection, including urethritis. This is a common reason for urethritis in postmenopausal women. While immune function does decrease with aging and sexually transmitted diseases can cause urethritis, the most likely reason in this case is the low estrogen levels. Personal hygiene practices are usually not a significant factor in the development of urethritis.
2. A female client taking oral contraceptives reports to the nurse that she is experiencing calf pain. What action should the nurse implement?
- A. Determine if the client has also experienced breast tenderness and weight gain.
- B. Encourage the client to begin a regular, daily program of walking and exercise.
- C. Advise the client to notify the healthcare provider for immediate medical attention.
- D. Tell the client to stop taking the medication for a week to see if symptoms subside.
Correct answer: C
Rationale: Calf pain is indicative of thrombophlebitis, a serious, life-threatening complication associated with the use of oral contraceptives which requires further assessment and possibly immediate medical intervention.
3. When assessing the lower extremities of a client with peripheral vascular disease (PVD), the nurse notes bilateral ankle edema. The edema is related to:
- A. Competent venous valves.
- B. Decreased blood volume.
- C. Increase in muscular activity.
- D. Increased venous pressure.
Correct answer: D
Rationale: The correct answer is 'Increased venous pressure.' In peripheral vascular disease (PVD), impaired blood flow leads to increased venous pressure in the lower extremities, causing fluid to leak out of the blood vessels and accumulate as edema. Choice A, 'Competent venous valves,' is incorrect because in PVD, the venous valves may be incompetent, contributing to venous pooling and edema. Choice B, 'Decreased blood volume,' is incorrect as PVD is associated with impaired blood flow rather than reduced blood volume. Choice C, 'Increase in muscular activity,' is incorrect as it does not directly relate to the development of edema in PVD.
4. A client with elevated levels of antidiuretic hormone (ADH) triggers the release of this hormone due to which disorder?
- A. Pneumonia
- B. Dehydration
- C. Renal failure
- D. Edema
Correct answer: B
Rationale: Antidiuretic hormone (ADH) increases tubular permeability to water, causing more water absorption into the capillaries. ADH is released in response to a rising extracellular fluid osmolarity, such as in dehydration. Pneumonia, renal failure, and edema do not typically lead to the release of ADH. Pneumonia is an inflammatory lung condition, renal failure affects kidney function, and edema is the accumulation of excess fluid in the tissues, none of which directly stimulate the release of ADH.
5. 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.
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