Correct Answer: A

Rationale: The correct answer is A. Taking omeprazole before meals is important as it improves the medication's effectiveness in reducing gastric acid production. Option B is incorrect as omeprazole should not be taken with antacids as it can interfere with its absorption. Option C is incorrect because omeprazole is usually recommended to be taken before breakfast, not at bedtime. Option D is incorrect as omeprazole is generally taken on an empty stomach, at least 1 hour before a meal.

Correct Answer: C

Rationale: The correct answer is C. Spironolactone is a potassium-sparing diuretic, which means it helps the body retain potassium and excrete sodium and water. Therefore, clients on spironolactone should reduce their intake of foods high in potassium to prevent hyperkalemia. Choices A, B, and D are incorrect because limiting spinach intake due to warfarin, eating anchovies with gout, and taking calcium carbonate with water for osteoporosis do not directly relate to the medication's side effects or dietary restrictions associated with spironolactone.

Correct Answer: A

Rationale: The correct answer is A. Taking omeprazole before meals is important as it improves the medication's effectiveness in reducing gastric acid production. Option B is incorrect as omeprazole should not be taken with antacids as it can interfere with its absorption. Option C is incorrect because omeprazole is usually recommended to be taken before breakfast, not at bedtime. Option D is incorrect as omeprazole is generally taken on an empty stomach, at least 1 hour before a meal.

Correct Answer: D

Rationale: In clients with cirrhosis, the liver is unable to produce clotting factors efficiently, leading to impaired clotting function. Therefore, an increased prothrombin time is expected in cirrhosis. Choices A, B, and C are incorrect. Decreased bilirubin levels are not typically seen in cirrhosis; prothrombin time is usually increased, not decreased; and albumin levels are often decreased in cirrhosis due to reduced synthetic liver function.

Correct Answer: B

Rationale: The correct answer is B because a new onset of tachypnea can indicate a respiratory complication, which requires immediate assessment. Sinus arrhythmia, epidural analgesia with weakness, and a hemoglobin A1C level of 6.8% in a client with diabetes do not pose immediate life-threatening concerns that require urgent assessment compared to the potential respiratory issues associated with tachypnea.