Correct Answer: C

Rationale: The correct answer is C. Using cold packs to relieve joint pain is appropriate for clients with rheumatoid arthritis as cold therapy is more effective at reducing inflammation and pain in these conditions. Heat applications may exacerbate the symptoms by increasing swelling. Taking warm showers before activity may provide comfort but does not directly address joint pain or prevent injury. While anti-inflammatory medications are commonly prescribed, they are not directly related to preventing injury in clients with rheumatoid arthritis.

Correct Answer: D

Rationale: The correct answer is D: Reduce gastric acid secretion. Omeprazole is a proton pump inhibitor that works by reducing the production of gastric acid in the stomach. This helps in managing GERD by decreasing the acidity levels in the stomach. Choice A is incorrect because omeprazole does not coat the lining of the stomach. Choice B is incorrect as omeprazole does not neutralize stomach acid but rather reduces its production. Choice C is incorrect because omeprazole does not promote gastric motility; instead, it acts on acid secretion.

Correct Answer: D

Rationale: The correct answer is D: Potassium level. Furosemide is a loop diuretic that can cause potassium loss, leading to hypokalemia. Monitoring potassium levels is crucial to prevent complications such as cardiac arrhythmias. While calcium, sodium, and magnesium levels are important in various conditions and treatments, they are not the primary electrolyte affected by furosemide.

Correct Answer: A

Rationale: The correct answer is A: Medication compliance over the past few weeks. In a client with chronic emphysema experiencing acute symptoms, it is crucial to assess medication compliance as it directly impacts symptom control and disease management. Ensuring the client has been adherent to their prescribed medications can provide insights into potential exacerbating factors or the need for adjustments in the treatment plan. Choices B, C, and D are less critical during the initial assessment compared to medication compliance. Recent sleep patterns and rest (choice B) may be relevant but are secondary to ensuring proper medication management. While smoking history (choice C) is important in chronic lung conditions, the immediate focus should be on the current status of medication use. Activity level prior to symptom onset (choice D) is also pertinent but not as crucial as confirming medication compliance to address the acute symptoms.

Correct Answer: C

Rationale: Clients with diabetic ketoacidosis typically present with elevated blood glucose levels, often above 300 mg/dL. This high blood glucose level, along with other symptoms, helps confirm the diagnosis of DKA. A pH level of 7.45 would be indicative of alkalosis, not the acidosis seen in DKA. A serum calcium level of 15 mg/dL is significantly elevated and is not a typical finding in DKA. A sodium level of 120 mEq/L indicates hyponatremia, which is not a characteristic laboratory finding in DKA.