Jefferson University Hospitals

Ambulatory Blood Pressure Monitoring

Ambulatory blood pressure monitoring (ABPM) is a service provided by Jefferson physicians which measures a patient's blood pressure during a 24-hour period in their home environment, representing a true reflection of their blood pressure. Blood pressures may be skewed at the time of examination in a doctor's office due to the "white coat effect" – when blood pressure rises due to the anxiety of a clinical situation.

Any patient with persistently raised blood pressure readings should be considered for ABPM.

What Does Ambulatory Blood Pressure Monitoring Involve?

The patient wears a blood pressure cuff on the upper arm that is connected to a lightweight, portable device worn on the waist to track blood pressure levels during a 24-hour period.

The monitor takes blood pressures every 20 minutes (including overnight, though less frequently). It is important to monitor blood pressure during the night, as levels should decrease.