Readings taken at home tell us more than a single reading in clinic — as long as they are taken the same way each time. Here is how, plus a log to fill in and bring to your review.
Most odd readings come from what happened just before the cuff went on.
After coffee, tea, a cigarette, alcohol or exercise. All of them push the reading up.
A full bladder can add several points to the reading.
Back supported, feet flat on the floor, legs uncrossed. No phone, no talking.
Whichever arm we measured in clinic — usually the one that reads higher.
Roll the sleeve up rather than measuring over clothing. Rest your arm on a table so the cuff sits level with your heart.
Snug enough for two fingers underneath, with the lower edge about 2 cm above your elbow crease. A cuff that is too small reads high.
Don't talk or move. Talking during a reading can add up to 10 points.
Wait a minute between them. Record both — don't pick the nicer one.
Both numbers, the pulse if your machine shows it, and the time. Use the log on this page, or the machine's memory if it has one.
Morning before breakfast and before your medication; evening before bed. Keep to roughly the same times each day.
Blood pressure is written as one number over the other, in mmHg — for example 128/78.
The pressure while your heart is pumping. It is the number that usually rises with age and with salt, stress and weight.
The pressure while your heart rests between beats. In younger adults this is often the one we watch.
Your own target may be different from the ranges above — some conditions need a lower one, and for some patients we allow a little more. Go by the target we set for you.
If you'd rather not keep paper, use the BP Diary instead. It asks for one morning and one evening reading every other day, shows you the trend as it builds, and sends us a password-protected report when you're done.
Open the BP diaryWhichever period we asked you for, morning and evening on alternate days.
Nothing reaches us until you tap send, and the report is password-protected.
It then opens like an app and works without a connection.
Prefer to go manual with pen and paper? Print this.
Add it to your home screen and it opens like an app — it prompts you for each reading, shows the trend, and sends us the report when you're done.
Photograph the finished log and WhatsApp it over, or bring it to your review — whichever is easier.