Correct Answer: B

Rationale: The nurse should instruct the client to report a pulse rate less than 60 beats per minute, as it could indicate digoxin toxicity. Consuming potassium-rich foods is encouraged due to the potential for furosemide (Lasix) to cause hypokalemia. The medications should be taken in the morning to prevent nocturia. Additionally, the client should weigh themselves daily to monitor for fluid retention, which is crucial in managing heart failure.

Correct Answer: C

Rationale: The correct answer is C. Hydrochlorothiazide is a thiazide diuretic, which can lead to hypokalemia, hyperglycemia, hypercalcemia, hyperlipidemia, and hyperuricemia. It is a sulfa-based medication, so individuals with a sulfa allergy are at risk for an allergic reaction when taking hydrochlorothiazide.

Correct Answer: C

Rationale: Heparin is an anticoagulant, so the primary potential complication is bleeding. The healthcare provider should monitor the client for signs of bleeding, such as bruising, hematuria, and gastrointestinal bleeding. Hypertension, tachycardia, and hyperkalemia are not direct complications of heparin therapy.

Correct Answer: D

Rationale: Chemical sunscreens are most effective when applied at least 30 minutes before exposure to the sun to allow them to penetrate the skin and provide optimal protection. Applying sunscreen in advance ensures it has enough time to be absorbed and offer the intended protection. It is important to reapply sunscreen after swimming or sweating to maintain its effectiveness.

Correct Answer: B

Rationale: Lansoprazole is a gastric acid pump inhibitor commonly used to treat gastroesophageal reflux disease (GERD) by reducing stomach acid. Heartburn is a key symptom of GERD, so asking about heartburn can help assess the effectiveness of lansoprazole in managing acid reflux symptoms.