Pharmacology and the Nursing Process 10th Edition Test Bank Quizlet

Correct Answer: D

Rationale: The correct answer is D: Vitamin D. Vitamin D is essential for the absorption of calcium in the intestines. Without sufficient vitamin D, the body cannot effectively absorb calcium, leading to potential issues with calcium absorption. Vitamin A (choice A) is not directly involved in calcium absorption. Vitamin B (choice B) and Vitamin C (choice C) also do not play a significant role in calcium absorption. Therefore, the lack of Vitamin D is the most likely cause for problems with calcium absorption.

Correct Answer: B

Rationale: Step-by-step rationale: 1. CD4+ cells are a type of white blood cell crucial for immune function. 2. HIV targets and destroys CD4+ cells, leading to immune system damage. 3. Measuring CD4+ levels helps determine the extent of this damage. 4. Therefore, the correct answer is B. Summary: A: Presence of opportunistic infections - CD4+ levels indirectly affect susceptibility, but not measured for this purpose. C: Level of the viral load - Measured separately from CD4+ levels. D: Resistance to antigens - CD4+ levels do not directly indicate resistance.

Correct Answer: B

Rationale: The correct answer is B because maintaining the head of the bed at a 30-degree angle can cause the radioactive material to shift within the client's body, increasing the risk of radiation exposure. This position should be avoided to prevent displacement of the applicator. A: Strict bed rest is appropriate to minimize movement and dislodgement of the applicator, ensuring proper treatment delivery. C: Providing a bed bath does not pose a radiation hazard as long as proper precautions are taken. D: Checking the applicator's position every 4 hours is essential for monitoring and ensuring it remains in place to deliver the intended treatment.

Correct Answer: A

Rationale: The correct answer is A because the drug should be resumed when the WBC count falls to 5,000mm3 to ensure the client's safety and efficacy of treatment. This criterion indicates that the client's immune system has recovered sufficiently to tolerate the drug. Choices B, C, and D are incorrect because they do not directly correlate with the client's immune system recovery, which is crucial for drug tolerance. Choice B focuses on the rise in WBC count, not the fall to a specific level. Choice C is related to a cosmetic side effect, not clinical readiness. Choice D is unrelated to immune system recovery.

Correct Answer: A

Rationale: The correct answer is A: 30 minutes before breakfast. Glyburide is a sulfonylurea medication that stimulates insulin release from the pancreas, enhancing glucose uptake. Taking it before breakfast ensures peak insulin levels coincide with the postprandial glucose spike, aiding in glucose control throughout the day. Option B is incorrect as taking it after dinner may lead to hypoglycemia during sleep. Option C is incorrect as midmorning is not an optimal time for a sulfonylurea dose. Option D is incorrect as taking it at bedtime may also increase the risk of hypoglycemia overnight.