Correct Answer: B

Rationale: Monitoring for weight loss is critical with methylphenidate, a stimulant, as it commonly causes appetite suppression, which can lead to significant weight loss, especially in children with ADHD.
Choice A is incorrect because methylphenidate should be taken in the morning or early afternoon, as it can cause insomnia if taken at bedtime.
Choice C is incorrect because methylphenidate may take days to weeks to improve focus, not immediately.
Choice D is incorrect because methylphenidate can be taken with or without food; a high-fat meal may delay absorption but is not necessary.

Correct Answer: A

Rationale: Encouraging the client to ambulate within 4 hours after a cholecystectomy promotes circulation, prevents complications like deep vein thrombosis, and aids in recovery of bowel function.
Choice B is incorrect because morphine should be administered as needed (PRN) for pain, not on a fixed every-6-hour schedule, to avoid overmedication.
Choice C is incorrect because a supine position with legs elevated is not necessary and may be uncomfortable; a semi-Fowler's position is preferred to reduce abdominal strain.
Choice D is incorrect because a high-fat meal should be avoided post-cholecystectomy, as it can cause discomfort or diarrhea due to altered bile metabolism; a low-fat diet is recommended initially.

Correct Answer: A

Rationale: Weight gain is a common adverse effect of risperidone, an atypical antipsychotic, due to its effects on metabolism and appetite, requiring monitoring to manage long-term health risks.
Choice B is incorrect because, while hypotension may occur, it is less frequent than weight gain and more associated with initial dosing.
Choice C is incorrect because bradycardia is not a typical side effect; tachycardia may occur with agitation or overdose.
Choice D is incorrect because hypoglycemia is not associated with risperidone; hyperglycemia may occur due to metabolic changes.

Correct Answer: C

Rationale: Reporting weight gain is important with fluoxetine, as it can affect weight. It's taken in the morning, tyramine is unrelated, and relief takes weeks.

Correct Answer: A

Rationale: Increasing dietary fiber prevents constipation, a common side effect of hydrocodone, an opioid that slows gastrointestinal motility.
Choice B is incorrect because grapefruit juice can interact with some medications but does not enhance hydrocodone absorption and may increase side effects.
Choice C is incorrect because driving should be avoided while taking hydrocodone, as it can cause drowsiness and impair coordination, regardless of time of day.
Choice D is incorrect because hydrocodone typically causes sedation, not increased energy levels.