Test Bank Pharmacology and the Nursing Process

Correct Answer: A

Rationale: The correct answer is A because it demonstrates data validation in nursing clinical decision-making. In this scenario, the nurse considers the patient's self-reported information (time of last dressing change and observation of old and new drainage) as key data points to validate the need for changing the wound dressing. This aligns with the principles of evidence-based practice and ensures that the decision is based on accurate and relevant information. Choices B, C, and D are incorrect because they do not involve the systematic validation of data to inform the nursing decision-making process. Choice B relies on family input rather than objective data, Choice C jumps to a treatment decision without confirming the underlying cause, and Choice D does not involve validating the patient's reported symptom before taking action.

Correct Answer: A

Rationale: The correct answer is A: It inhibits deoxyribonucleic acid (DNA) synthesis. Mitomycin is an alkylating agent that works by cross-linking DNA, preventing DNA synthesis and leading to cell death. This mechanism of action makes it effective against rapidly dividing cells like cancer cells. Choice B, inhibiting ribonucleic acid (RNA) synthesis, is incorrect as mitomycin primarily targets DNA synthesis. Choice C, being cell cycle-phase specific, is incorrect as mitomycin affects cells in all phases of the cell cycle. Choice D, inhibiting protein synthesis, is incorrect because mitomycin's primary mode of action is on DNA replication, not protein synthesis.

Correct Answer: A

Rationale: The correct answer is A: Shrimp and tomatoes. Shrimp is a good source of heme iron, which is more easily absorbed by the body compared to non-heme iron found in plant-based foods. Tomatoes are rich in Vitamin C, which helps enhance iron absorption. Cheese, bananas, lobster, squash, lamb, and peaches do not provide significant amounts of iron essential for an anemic client. The combination of shrimp and tomatoes offers a balanced approach to increase iron levels effectively.

Correct Answer: B

Rationale: The correct answer is B: Because these clients may experience difficulty voiding. Antihistamines can worsen urinary symptoms in men with prostatic hypertrophy by causing urinary retention. This is due to the anticholinergic effects of antihistamines, which can lead to decreased bladder contraction and difficulty in voiding. Increased drowsiness (choice A) is a common side effect of antihistamines but is not specific to older men with prostatic hypertrophy. Choice C, greater risk of cardiac arrest, is not directly related to the use of antihistamines in older men with prostatic hypertrophy. Choice D, lower autoimmune response in clients with AIDS, is unrelated to the use of antihistamines in older men with prostatic hypertrophy.

Correct Answer: C

Rationale: The correct answer is C: Autoantibodies. In Hashimoto's thyroiditis, the immune system mistakenly attacks the thyroid gland by producing autoantibodies against thyroid proteins such as thyroglobulin and thyroid peroxidase. These autoantibodies lead to inflammation and destruction of thyroid tissue. Antigen-antibody complexes (choice A) are not the main mechanism in Hashimoto's thyroiditis. Viral (choice B) and bacterial infections (choice D) do not directly cause autoimmune destruction of the thyroid in this condition. Autoantibodies targeting the thyroid gland are the key pathogenic factor in Hashimoto's thyroiditis.