ATI RN
Final Exam Pathophysiology
1. When educating a patient starting on oral contraceptives, what should the nurse include regarding the medication's effectiveness?
- A. Oral contraceptives are 100% effective when taken correctly.
- B. Oral contraceptives are effective immediately after starting.
- C. Oral contraceptives are less effective if taken with antibiotics.
- D. Oral contraceptives are less effective if taken with food.
Correct answer: C
Rationale: The correct answer is C. Oral contraceptives can be less effective when taken with certain antibiotics as they may interfere with the contraceptive's efficacy, potentially leading to decreased effectiveness. Therefore, patients should be advised to use additional contraception methods if they are also taking antibiotics. Choice A is incorrect because while oral contraceptives are highly effective, they are not 100% foolproof. Choice B is incorrect as oral contraceptives may take some time to reach their full effectiveness after starting. Choice D is incorrect since taking oral contraceptives with food does not necessarily impact their effectiveness.
2. When arterial blood pressure declines, the kidneys secrete a hormone to increase blood pressure and peripheral resistance. What is this hormone called?
- A. Renin
- B. Antidiuretic hormone
- C. Atrial natriuretic
- D. Insulin
Correct answer: A
Rationale: Renin is the correct answer. When arterial blood pressure decreases, the kidneys release renin, which triggers a series of reactions ultimately leading to an increase in blood pressure and peripheral resistance. Antidiuretic hormone (choice B) is involved in water retention, atrial natriuretic hormone (choice C) promotes sodium excretion and lowers blood pressure, and insulin (choice D) regulates glucose metabolism, not blood pressure.
3. When starting on oral contraceptives, what key point should the nurse emphasize about taking the medication consistently?
- A. Oral contraceptives should be taken at the same time each day to maintain stable hormone levels and prevent pregnancy.
- B. Oral contraceptives can be taken at any time of day, as long as the schedule is consistent.
- C. Oral contraceptives should be taken in the morning to avoid nighttime side effects.
- D. Oral contraceptives are effective immediately upon starting, regardless of timing.
Correct answer: A
Rationale: When starting on oral contraceptives, it is crucial to take them at the same time each day to maintain stable hormone levels and ensure their effectiveness in preventing pregnancy. Choice B is incorrect because consistency in timing is essential to maximize contraceptive efficacy. Choice C is incorrect as there is no evidence that taking oral contraceptives in the morning helps avoid nighttime side effects. Choice D is incorrect because oral contraceptives do not provide immediate effectiveness and require consistent use to prevent pregnancy.
4. A patient is prescribed tadalafil (Cialis) for erectile dysfunction. What critical contraindication should the nurse discuss with the patient?
- A. Use of nitrates
- B. Use of antihypertensive medications
- C. History of hypertension
- D. History of peptic ulcer disease
Correct answer: A
Rationale: The correct answer is A: Use of nitrates. Tadalafil (Cialis) is contraindicated in patients taking nitrates due to the risk of severe hypotension. Nitrates potentiate the hypotensive effects of tadalafil, leading to a potentially life-threatening drop in blood pressure. Choices B, C, and D are incorrect because antihypertensive medications, history of hypertension, and history of peptic ulcer disease are not critical contraindications for tadalafil use. While caution may be needed in patients with certain conditions, the highest priority is addressing the interaction with nitrates.
5. A patient is prescribed finasteride (Proscar) for benign prostatic hyperplasia (BPH). What should the nurse include in the patient teaching regarding the expected outcomes of this therapy?
- A. The medication will cure BPH after treatment is complete.
- B. The effects of the medication may take several weeks or months to become noticeable.
- C. The medication may cause increased hair growth.
- D. The medication may decrease libido.
Correct answer: B
Rationale: The correct answer is B. The effects of finasteride in treating BPH may take several weeks or months to become noticeable, so patients should be informed about this expected time frame. Choice A is incorrect because finasteride does not cure BPH but helps manage symptoms. Choice C is incorrect as increased hair growth is a side effect of finasteride, not an expected outcome for BPH treatment. Choice D is also incorrect as decreased libido is a potential side effect of finasteride, not an expected outcome for BPH treatment.
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