The nurse receives report that a client's pH level is 7.4. Which nursing action would be most appropriate?

A. Encourage the client to practice deep breathing: Deep breathing may be helpful in correcting respiratory acidosis or alkalosis, but it is not needed when the pH is normal. The client’s acid-base balance does not require intervention at this time.
B. Call the health care provider with the report: A pH of 7.4 is within the normal range (7.35–7.45). Reporting a normal pH value in isolation is generally not necessary unless it's part of a trend or if the clinical picture suggests otherwise. The nurse should complete their assessment and consider all findings before contacting the provider.
C. Obtain an ECG: An ECG may be warranted if there are signs of electrolyte imbalances or cardiac symptoms. However, a normal pH level alone does not justify performing an ECG in the absence of additional findings.
D. Finish the head-to-toe assessment: With a normal pH level, the nurse should continue routine care, including completing the assessment. No urgent intervention is required, making this the most appropriate next step.

A. An angiotensin receptor blocker (ARB): ARBs, such as losartan or valsartan, block the angiotensin II receptor but are pharmacologically distinct from ACE inhibitors. Captopril is not classified in this drug group.
B. A calcium channel blocker: Calcium channel blockers, such as amlodipine, reduce blood pressure by relaxing vascular smooth muscle. Captopril does not function through calcium channel modulation and is unrelated to this class.
C. An angiotensin converting enzyme inhibitor (ACE) inhibitor: Captopril is an ACE inhibitor that lowers blood pressure and reduces afterload by inhibiting the conversion of angiotensin I to angiotensin II. It is commonly prescribed for heart failure management to improve cardiac output and prevent fluid overload.
D. A thiazide diuretic: Thiazide diuretics like hydrochlorothiazide promote sodium and water excretion. They help manage hypertension but work differently from captopril, which targets the renin-angiotensin-aldosterone system.