How long to wait between blood pressure readings

Keep the interval and number of readings consistent with the plan agreed with your healthcare team. A series is more useful when all of its measurements remain available.

Follow a defined interval and number of readings

The American Heart Association's general home instructions describe two readings one minute apart. Your clinician may give a different schedule for a particular assessment. Do not combine different protocols into a new rule or keep adding readings until the result looks acceptable.

Stay in the measuring position between readings and record the time of each one. Keep comments about talking, movement or an interrupted measurement so the record remains understandable.

Preserve the whole series

An illustrative entry is: “Two planned readings, same arm, one minute apart.” It describes what happened without claiming that every nearby timestamp must represent the same series.

A common mistake is replacing the first number with the second. Keep original results and ask how they should be summarized. A clinician's averaging instructions may differ from the way an app displays a chart.

A protocol has more than an interval

Before beginning a requested series, establish the number of readings, the pause between them, the posture and the purpose. A diagnostic home-monitoring protocol may also specify morning and evening sessions over several days. That is different from taking a couple of readings during an ordinary follow-up session.

Association recommendations can vary in details. The ESH position paper and ESC guidance describe structured home measurement, while other professional instructions may use a different summary rule. Follow the plan assigned to you rather than taking the shortest interval from one document and the averaging rule from another.

Record a planned series as separate rows

Before starting, write down the agreed number of readings and pause between them. For each completed reading, keep:

• Date and time.

• Systolic and diastolic values.

• Pulse, if measured.

• Arm and any interruption.

Use one note for the session: “Planned __ readings; interval __; same arm and position: __.” Keep failed attempts distinguishable from completed readings. Stop according to the agreed plan rather than adding measurements until one looks better. Ask how the whole series should be summarized.