A nurse is instructing a young adult client about healthful sleep habits. Which of the following statements should the nurse identify as an indication that the client needs further teaching?

A. Propranolol is a beta-blocker medication commonly used to treat hypertension, angina, and certain heart rhythm disorders. However, it is contraindicated in clients with a history of asthma or other obstructive airway diseases due to its potential to cause bronchoconstriction and exacerbate respiratory symptoms.

B. Migraines:
Propranolol is actually commonly used for the prophylactic treatment of migraines, particularly in individuals with frequent or severe migraines. It helps reduce the frequency and severity of migraine attacks by blocking the release of certain chemicals in the brain.

C. Glaucoma:
Propranolol can be used in the treatment of glaucoma, particularly when other treatments have been ineffective. It works by reducing intraocular pressure, which can help prevent vision loss associated with glaucoma.

D. Depression:
Propranolol is not contraindicated in clients with depression. In fact, it may sometimes be used off-label to manage certain symptoms of anxiety or performance anxiety. However, it is important to monitor clients with depression closely when prescribing propranolol, as it may interact with other medications used to treat depression or worsen certain depressive symptoms.

A) Hydrochlorothiazide: Hydrochlorothiazide is a thiazide diuretic that promotes sodium and water excretion, leading to decreased blood volume and decreased potassium excretion. While it can cause hypokalemia due to increased potassium excretion, it does not typically lead to hyperkalemia.

B) Spironolactone: Spironolactone is a potassium-sparing diuretic that inhibits aldosterone, leading to decreased sodium reabsorption and increased potassium retention. This mechanism of action can predispose clients to hyperkalemia due to potassium retention. Additionally, spironolactone can cause hyponatremia by promoting the excretion of sodium and water. Therefore, clients receiving spironolactone are at risk for both hyperkalemia and hyponatremia.

C) Furosemide: Furosemide is a loop diuretic that inhibits sodium and chloride reabsorption in the loop of Henle, promoting sodium, chloride, potassium, and water excretion. While it can cause hypokalemia due to increased potassium excretion, it does not typically lead to hyperkalemia.

D) Metolazone: Metolazone is a thiazide-like diuretic that acts similarly to hydrochlorothiazide by promoting sodium and water excretion. Like hydrochlorothiazide, it can cause hypokalemia due to increased potassium excretion but does not typically lead to hyperkalemia.