Pharmacology and the Nursing Process Test Bank

Correct Answer: A

Rationale: Step-by-step rationale for why choice A is correct: 1. Enalapril maleate is an angiotensin-converting enzyme (ACE) inhibitor. 2. ACE inhibitors like enalapril maleate block the conversion of angiotensin I to angiotensin II. 3. By inhibiting the formation of angiotensin II, enalapril maleate decreases the levels of angiotensin II. 4. Angiotensin II is a potent vasoconstrictor, so decreasing its levels leads to vasodilation and decreased blood pressure. Summary of why other choices are incorrect: - Choice B: Enalapril maleate primarily dilates arterioles by decreasing angiotensin II levels, not veins. - Choice C: Enalapril maleate does not directly adjust extracellular volume; it primarily affects the renin-angiotensin-aldosterone system. - Choice D: Enalapril maleate

Correct Answer: C

Rationale: The correct answer is C: A decreased number of functioning acetyl-choline receptor sites. This is because in diseases like myasthenia gravis, there is an autoimmune attack on acetylcholine receptor sites, leading to decreased functionality. Choice A is incorrect because it refers to a genetic defect in acetylcholine production, which is not typically the cause of myasthenia gravis. Choice B is incorrect as it suggests a reduced amount of acetylcholine, which is not the primary issue in myasthenia gravis. Choice D is incorrect as it mentions inhibition of the enzyme Ache, which is not the main mechanism in this disease.

Correct Answer: A

Rationale: The correct answer is A: Increased ICP. Decreasing level of consciousness is a classic sign of increased intracranial pressure (ICP) due to the compression of the brain. As ICP rises, it impairs cerebral perfusion leading to altered mental status. Parasympathetic response (B) and sympathetic response (C) are related to autonomic nervous system functions, not consciousness. Increased cerebral blood flow (D) might lead to conditions like hyperemia but does not directly cause a decreased level of consciousness.

Correct Answer: C

Rationale: The correct answer is C because measuring the wound and observing for redness, swelling, or drainage are essential steps in evaluating wound healing progress. Measuring the wound provides objective data on its size changes, while observing for signs of infection like redness, swelling, or drainage helps identify complications. - Choice A is incorrect because the nursing assistive personnel may not have the necessary knowledge to assess wound healing accurately. - Choice B is incorrect because documenting progress as "better" without objective data is subjective and does not provide a clear picture of the wound status. - Choice D is incorrect because leaving the dressing off can expose the wound to contaminants and compromise healing, making it a potentially harmful action.

Correct Answer: B

Rationale: The correct answer is B: Monitor temperature every 4hrs. This is crucial in detecting signs of urinary tract infection as fever is a common symptom. Monitoring temperature regularly allows for early detection and appropriate intervention. A: Encouraging the client to breathe deeply and cough every 2hrs is a measure to prevent respiratory complications postoperatively, not related to UTI detection. C: Splinting the incision when repositioning the client is important for wound care, not for detecting UTI. D: Irrigating tubes as ordered is a specific intervention for tube care, not for monitoring UTI symptoms.