Correct Answer: B

Rationale: The correct instruction that the nurse should include for a client prescribed hydrochlorothiazide is to increase their intake of potassium-rich foods. Hydrochlorothiazide is a diuretic that can lead to potassium depletion, so increasing potassium-rich foods helps prevent hypokalemia. Option A is incorrect because hydrochlorothiazide is usually taken in the morning to prevent diuresis at night. Option C is not necessary as hydrochlorothiazide can be taken with or without food. Option D is incorrect because hydrochlorothiazide is used to lower blood pressure, not increase it.

Correct Answer: C

Rationale: An increased respiratory rate is a sign of fluid volume deficit as the body attempts to compensate for decreased blood volume. Jugular vein distention, bradycardia, and bounding pulses are not typical findings of fluid volume deficit. Jugular vein distention is more commonly associated with fluid volume overload, bradycardia can be a sign of fluid volume excess or other issues, and bounding pulses are not typically seen in fluid volume deficit.

Correct Answer: B

Rationale: The correct answer is to use a soft-bristle toothbrush to prevent gum irritation in clients undergoing radiation therapy for laryngeal cancer. Radiation therapy can cause oral mucositis and increase the risk of gum irritation, so using a soft-bristle toothbrush is recommended to minimize trauma to the gums and oral mucosa. Applying heat to the neck is contraindicated as it can exacerbate tissue damage caused by radiation. Rinsing the mouth with an alcohol-free mouthwash is preferred over an alcohol-based one to prevent drying and irritation of the oral mucosa. Wearing loose-fitting clothing is advised to prevent friction and irritation on the skin, rather than tight-fitting clothing that may cause pressure ulcers or skin breakdown.

Correct Answer: D

Rationale: The correct answer is D because clients taking spironolactone should have their potassium levels checked regularly. Spironolactone is a potassium-sparing diuretic, meaning it helps the body retain potassium and can lead to hyperkalemia if levels become too high. Choices A, B, and C are incorrect because avoiding foods high in potassium, sodium, or monitoring blood pressure are not specific to the teaching related to spironolactone.

Correct Answer: B

Rationale: The correct answer is B: 'Avoid crowds to reduce the risk of infection.' Clients receiving chemotherapy are immunocompromised, so avoiding crowds can help decrease the likelihood of exposure to infections. Wearing a mask when gardening (choice A) is important but not directly related to infection prevention in the context of chemotherapy. Taking a daily vitamin (choice C) may be beneficial for overall health but is not specifically focused on infection prevention. Increasing intake of high-protein foods (choice D) is essential for nutrition but does not directly address infection prevention.