24-Hour Blood Pressure Monitoring
A blood pressure cuff worn for 24 hours that takes readings during normal daily life and sleep.
Quick Summary
To confirm high blood pressure, check 'white coat' readings and see night-time pressure.
Average day and night blood pressure.
Wear a loose-sleeved top.
Overview
Readings at the clinic can be higher than usual because of anxiety.
Average readings give a more accurate picture.
What It Measures
Daytime average
Blood pressure while awake.
Night-time average
Should normally fall.
How It's Performed
- 01
Fitting
A cuff on your arm and a small recorder.
- 02
Daily life
Keep your arm still during readings.
- 03
Return
Remove the next day.
Reference Ranges
Note: Normal ranges vary by laboratory. Consult your report for the specific reference used.
| Parameter | Typical Range (Adult) | Units |
|---|---|---|
| Daytime average | Below 135/85 | mmHg |
Interpreting Results & Next Steps
Discuss with Doctor
Your doctor will explain the report and what happens next.
If values are High:
Averages above the target suggest high blood pressure.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Blood pressure measurement(opens in a new tab) · MedlinePlus, US National Library of Medicine
- Blood pressure test(opens in a new tab) · NHS