If you ask me, the extra time it takes to obtain a 2nd reading is well worth it. Why? How many of us get our blood pressure measured immediately after we sit down, before our pressures have had a chance to come down? I doubt that too many staff members wait 3-5 minutes after seating their patient . That's why I check blood pressure after I've had a chance to chat w/my patient for a while. So checking blood pressure in the other arm means a bit more time will have elapsed. Sure this might widen the gap. But if that's the case, recheck it again in the first arm. Better safe than sorry.Follow @alvinblin
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