Correct Answer: D

Rationale: The correct answer is to monitor for signs of dehydration. Hydrochlorothiazide is a diuretic that can lead to fluid loss and electrolyte imbalance, potentially causing dehydration. Signs of dehydration include dry mouth, increased thirst, and decreased urine output. It is important for the client to be vigilant in monitoring and reporting these symptoms to healthcare providers to prevent complications. Choices A, B, and C are incorrect because taking the medication in the morning, increasing potassium-rich foods, or taking the medication with food are not specific instructions related to the potential side effects of Hydrochlorothiazide.

Correct Answer: A

Rationale: Corrected Rationale: Valsartan is an angiotensin II receptor blocker (ARB) that can cause hyperkalemia by affecting the renin-angiotensin-aldosterone system. The nurse should closely monitor the client's potassium levels due to the risk of hyperkalemia, which can lead to serious cardiac complications. Choice B, hypoglycemia, is not a common adverse effect of Valsartan. Choice C, bradycardia, is not directly associated with Valsartan use. Choice D, hypercalcemia, is not a typical adverse effect of Valsartan.

Correct Answer: A

Rationale: Platelets are fragile components that must be administered promptly to minimize the risk of clumping. The correct administration time for platelets is within 15 to 30 minutes per unit to maintain their therapeutic effectiveness and reduce adverse effects. Administering platelets over longer time frames can lead to decreased efficacy and potential harm to the patient. Therefore, the correct answer is to administer the 300 mL of pooled platelets within 30 minutes per unit.

Correct Answer: C

Rationale: When starting therapy with Lisinopril, a client should be instructed to monitor for a persistent dry cough as an adverse effect. Lisinopril, an ACE inhibitor, commonly causes this cough as an adverse effect. It is important for the client to monitor for this symptom and notify their healthcare provider if it occurs. Choices A, B, and D are incorrect because tinnitus, diarrhea, and weight gain are not commonly associated adverse effects of Lisinopril.

Correct Answer: A

Rationale: Dexamethasone, a glucocorticoid, is indicated for clients with brain cancer experiencing headaches as it decreases inflammation and swelling. It is commonly used to reduce cerebral edema and relieve pressure caused by the tumor. Methylphenidate (Choice B) is a central nervous system stimulant used in conditions like ADHD and narcolepsy, not for brain cancer headaches. Hydroxyzine (Choice C) is an antihistamine used for anxiety and allergic conditions, not indicated for brain cancer headaches. Amitriptyline (Choice D) is a tricyclic antidepressant used for depression, neuropathic pain, and migraine prophylaxis, but not typically indicated for brain cancer headaches.