Correct Answer: C

Rationale: The correct statement that the nurse should include in the teaching for a client prescribed furosemide is to eat foods high in potassium. Furosemide can lead to potassium depletion (hypokalemia) due to increased urine output. Consuming potassium-rich foods like bananas, oranges, spinach, and potatoes can help prevent this electrolyte imbalance. Choices A, B, and D are incorrect because taking furosemide in the morning, monitoring for muscle weakness, and expecting weight gain are not directly related to the potential side effects or necessary dietary adjustments when taking furosemide.

Correct Answer: B

Rationale: The correct answer is B. Sexual dysfunction is a common side effect of sertraline. When the client mentions this potential side effect, it indicates an understanding of the teaching about the medication's effects. This response shows awareness of a significant adverse effect that the client should be informed about when starting sertraline. Choices A, C, and D are incorrect because taking sertraline at bedtime, avoiding grapefruit juice, or experiencing weight loss are not key teaching points associated with this medication.

Correct Answer: B

Rationale: Shaking the inhaler well before use is a crucial step in ensuring proper medication delivery. This action helps disperse the medication evenly within the device, optimizing the effectiveness of each dose. It ensures that the client receives the intended amount of medication. The other options are incorrect: Option A suggests a fixed time interval for inhaler use, which may not be suitable for all clients and can lead to overuse. Option C, rinsing the mouth, is more relevant for corticosteroid inhalers to prevent oral thrush. Option D, using the inhaler while lying down, is not recommended as it may lead to improper drug delivery and is not the correct position for inhaler use.

Correct Answer: C

Rationale: In a client taking levothyroxine for thyroid hormone replacement, decreased TSH levels indicate that the medication is effective. TSH levels decrease as the thyroid hormone levels are adequately replaced by levothyroxine, signaling a positive response to treatment. Choices A, B, and D are incorrect because weight gain, increased heart rate, and elevated blood pressure are not expected findings indicating the effectiveness of levothyroxine therapy. Weight gain may suggest inadequate dosing, while increased heart rate and elevated blood pressure could indicate over-replacement or side effects of the medication.

Correct Answer: A

Rationale: A WBC count of 1,200/mm³ indicates leukopenia, a serious side effect of methotrexate that can lead to increased risk of infections. It is crucial to report this finding promptly to the provider for further evaluation and possible adjustments in the treatment plan. Choices B, C, and D are within normal ranges and do not represent significant concerns related to methotrexate therapy in this context.