a patient is prescribed finasteride proscar for benign prostatic hyperplasia bph what outcome should the nurse expect to observe

ATI RN

WGU Pathophysiology Final Exam

1. A patient is prescribed finasteride (Proscar) for benign prostatic hyperplasia (BPH). What outcome should the nurse expect to observe?

A. Decreased urinary frequency and urgency
B. Increased prostate size
C. Increased blood pressure
D. Increased risk of kidney stones

Correct answer: A

Rationale: The correct answer is A: Decreased urinary frequency and urgency. Finasteride is expected to decrease urinary frequency and urgency in patients with BPH by reducing prostate size. It works by inhibiting the enzyme that converts testosterone to dihydrotestosterone, which helps shrink the prostate gland. Choices B, C, and D are incorrect. Finasteride does not increase prostate size, blood pressure, or the risk of kidney stones.

2. What is the action of amphotericin B?

A. It binds to ergosterol and forms holes in the membrane.
B. It binds to an enzyme required for the synthesis of ergosterol.
C. It disrupts the fungal cell walls rather than the cell membrane.
D. It inhibits glucan synthetase required for glucan synthesis.

Correct answer: A

Rationale: Amphotericin B is an antifungal medication that acts by binding to ergosterol, a component of fungal cell membranes, forming pores that disrupt the integrity of the membrane. This action leads to leakage of cellular contents and ultimately cell death. Choice B is incorrect as amphotericin B does not bind to an enzyme required for the synthesis of ergosterol. Choice C is incorrect as the drug primarily affects the cell membrane rather than the cell wall. Choice D is also incorrect as amphotericin B does not inhibit glucan synthetase.

3. The signs of thyroid crisis resulting from Graves' disease include:

A. constipation with gastric distension.
B. bradycardia and bradypnea.
C. hyperthermia and tachycardia.
D. constipation and lethargy.

Correct answer: C

Rationale: Thyroid crisis in Graves' disease typically presents with hyperthermia (high body temperature) and tachycardia (rapid heart rate). These symptoms are a result of excessive thyroid hormone production and can lead to life-threatening complications if not promptly addressed. Choices A, B, and D are incorrect because constipation with gastric distension, bradycardia and bradypnea, and constipation and lethargy are not typical signs of a thyroid crisis in Graves' disease.

4. A patient has been prescribed conjugated estrogens for the treatment of menopausal symptoms. What should the nurse include in the patient teaching?

A. Increase the intake of calcium-rich foods.
B. Decrease the intake of high-fat foods.
C. Avoid the use of tobacco.
D. Avoid exposure to sunlight.

Correct answer: A

Rationale: The correct answer is A: Increase the intake of calcium-rich foods. Patients taking conjugated estrogens should increase their intake of calcium-rich foods to help prevent osteoporosis. Estrogen therapy can lead to an increased risk of osteoporosis, so ensuring an adequate intake of calcium is crucial. Choices B, decreasing high-fat foods, and C, avoiding tobacco, are general health recommendations but not directly related to the prescription of conjugated estrogens. Choice D, avoiding exposure to sunlight, is not a direct concern when taking conjugated estrogens.

5. What causes hepatic encephalopathy?

A. A brain infection
B. Increased ammonia levels in the bloodstream
C. Decreased albumin blood levels
D. Untreated chronic bronchitis

Correct answer: B

Rationale: Hepatic encephalopathy is caused by increased ammonia levels in the bloodstream. Ammonia, a byproduct of protein metabolism normally processed by the liver, accumulates in the bloodstream when the liver is unable to function properly. This excess ammonia affects brain function, leading to symptoms of hepatic encephalopathy. Choices A, C, and D are incorrect because they do not directly relate to the pathophysiology of hepatic encephalopathy.