Correct Answer: D

Rationale: The most crucial characteristic for successful adherence to a diabetic diet is the client's willingness to consistently follow the prescribed diet plan. Option A, understanding insulin timing, is important for treatment but not directly related to dietary adherence. Option B, consuming fruits and vegetables, is a healthy practice but does not ensure adherence to a specific diabetic diet. Option C, having assistance with meal preparation, is beneficial but not as essential as the client's personal commitment to adhering to the diet consistently.

Correct Answer: C

Rationale: The correct answer is C. When a client experiences syncope due to a significant drop in blood pressure after receiving multiple antihypertensive medications, the additive effect of these medications can cause the blood pressure to drop excessively. This additive effect can lead to hypotension, which is why the nurse decided to hold the client's scheduled antihypertensive medication. Choices A, B, and D provide incorrect rationales. Choice A mentions diuresis, which is not directly related to the drop in blood pressure due to additive medication effects. Choice B refers to an antagonistic interaction reducing effectiveness, which is not applicable in this scenario. Choice D talks about a synergistic effect leading to drug toxicity, which is not the cause of the sudden drop in blood pressure observed in the client.

Correct Answer: B

Rationale: The most important action to take in this situation is to record 'no known drug allergies' on the preoperative checklist. This ensures that all healthcare staff involved in the surgery are aware of the client's stated lack of drug allergies, helping to prevent any potential adverse reactions. Assessing the client's knowledge of an allergic response (Choice A) may be valuable but is not the most crucial action at this point. Flagging 'no known drug allergies' on the front of the chart (Choice C) is less practical and visible compared to documenting it on the preoperative checklist. Assessing the client's allergies to non-drug substances (Choice D) is not the priority in this scenario where the focus is on medications due to the upcoming surgery.

Correct Answer: D

Rationale: Proper application of personal protective equipment (PPE) is crucial to maintain infection control. In this scenario, the nurse should help the UAP reposition the gown sleeve over the gloves' edges. This action ensures that the gown properly covers the gloves, reducing the risk of contamination. Choices A, B, and C are incorrect because the primary concern is to address the improper application of PPE by repositioning the gown sleeves over the gloves, not checking other aspects of PPE or reminding about hand hygiene.

Correct Answer: C

Rationale: Inspecting for symmetrical shoulder height is a crucial initial step in screening for scoliosis. Asymmetry in shoulder height can indicate the presence of spinal curvature, which is a key indicator of scoliosis. This assessment is prioritized as it provides a visual clue to potential spinal abnormalities. Choices A, B, and D are not the first steps in scoliosis screening. Choice A involves a more detailed measurement that is not the primary visual indicator for scoliosis; choice B is not a primary indicator of scoliosis but can be used for further examination, and choice D is not directly related to identifying spinal curvature.