A 58-year-old male with hypertension presents for routine follow-up. His office BP is 148/92 mmHg on two readings. Which approach best confirms a diagnosis of sustained hypertension before intensifying therapy?
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A
Order ambulatory blood pressure monitoring (ABPM)
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B
Repeat BP in 1 week in the office
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C
Start a second antihypertensive immediately
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D
Order renal artery Doppler ultrasound