What it is
A cuff connected to a small device worn on the belt inflates automatically at regular intervals, day and night, recording blood pressure and heart rate.
What it is used for
It confirms or rules out hypertension, identifies white-coat and masked hypertension, assesses night-time values and checks blood pressure control in treated patients. It is also useful for dizziness that may be due to low blood pressure.
How it is performed
The cuff is usually placed on the non-dominant arm. During each measurement it is best to stop and keep the arm relaxed by your side. Sleep times, medicines, activities and symptoms are noted in a diary.
Preparation
- Wear a top with loose sleeves.
- Take your usual medicines unless your doctor tells you otherwise.
- Do not shower or get the device wet during the recording.
- Spend as normal a day as possible.
Report
The cardiologist analyses the daytime, night-time and 24-hour averages and writes the report.
Frequently asked questions
Does the cuff inflate at night too?
Yes, at longer intervals: night-time values are important in assessing risk.
What values are normal?
Generally a 24-hour average below 130/80 mmHg, a daytime average below 135/85 and a night-time average below 120/70.
Can I go to work?
Yes; in fact it is recommended to carry on with your usual activities.