Pharmacology and the Nursing Process Test Bank

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: C

Rationale: Correct Answer: C - Dryness of mouth Rationale: 1. Trihexyphenidyl is an anticholinergic medication commonly used to treat Parkinson's disease. 2. Anticholinergic drugs inhibit the parasympathetic nervous system, leading to decreased secretions. 3. Dryness of mouth (xerostomia) is a common side effect of anticholinergic medications. 4. Excessive salivation, bradycardia, and constipation are not typically associated with anticholinergic drugs, making them incorrect choices.

Correct Answer: B

Rationale: The correct answer is B: Take the NSAID with meals. Taking NSAIDs with meals helps reduce stomach irritation and risk of developing ulcers. Food acts as a protective barrier and helps in the absorption of the medication. Incorrect Choices: A: Taking NSAID with aspirin can increase the risk of stomach irritation and bleeding due to combined antiplatelet effects. C: Orange juice does not potentiate the effect of NSAIDs and may even worsen stomach irritation due to its acidity. D: NSAIDs do not coat the stomach lining; in fact, they can irritate the stomach lining and increase the risk of ulcers.

Correct Answer: B

Rationale: The correct answer is B: maintain blood pressure control. After PTCA, the priority goal is to ensure stable hemodynamics. Maintaining blood pressure control is crucial to prevent complications such as bleeding or thrombosis. Choices A, C, and D are incorrect because preventing fluid volume deficit, decreasing myocardial contractility, and minimizing dyspnea are not immediate priorities post-PTCA. Oxygenation and hemodynamic stability take precedence over these concerns.

Correct Answer: B

Rationale: The correct answer is B: Redness of the upper part of the feet. During lymphangiography, a contrast dye is injected into the lymphatic vessels. This may cause temporary redness in the upper part of the feet due to the dye spreading throughout the lymphatic system. Purplish stools (A), bluish urine (C), and coldness of the soles (D) are not expected side effects of lymphangiography and do not have a direct correlation with the procedure.