A blood pressure log gives your home measurements a clear home. Instead of trying to remember yesterday’s numbers or scrolling through photographs of the monitor, you can bring an organised record to your next appointment.
The most useful log is one you can maintain consistently. A notebook, printed table, spreadsheet, or monitor’s memory may suit you. Start with the information your healthcare professional wants, then choose the simplest format that captures it.
If you are new to home monitoring, read how to measure blood pressure at home before starting your record.
What Should a Blood Pressure Log Include?
Use these fields as a starting point:
| Field | What to enter |
|---|---|
| Date | The day you measured |
| Time | The actual measurement time |
| First reading | Systolic and diastolic numbers |
| Second reading | The repeat measurement |
| Pulse, if requested | The monitor’s pulse result |
| Notes | Relevant context or questions |
The American Heart Association recommends taking two readings one minute apart and recording the results. Keep both measurements rather than replacing the first with the second.
For help identifying the top and bottom numbers, visit blood pressure readings explained.
A Simple Blood Pressure Log Template
Copy this layout into your preferred recording format. Add morning and evening entries only if those sessions are part of your agreed schedule.
| Date | Time | Reading 1, mm Hg | Reading 2, mm Hg | Notes |
|---|---|---|---|---|
| __________ | __________ | _____ / _____ | _____ / _____ | __________ |
| __________ | __________ | _____ / _____ | _____ / _____ | __________ |
| __________ | __________ | _____ / _____ | _____ / _____ | __________ |
| __________ | __________ | _____ / _____ | _____ / _____ | __________ |
| __________ | __________ | _____ / _____ | _____ / _____ | __________ |
| __________ | __________ | _____ / _____ | _____ / _____ | __________ |
| __________ | __________ | _____ / _____ | _____ / _____ | __________ |
At the top of your record, leave space for:
- Your name.
- The monitoring dates.
- The arm your clinician has advised you to use.
- Your agreed measurement schedule.
- The date you should send or bring the results.
- Instructions about readings that require a call.
Keep personal records somewhere private, particularly if you use a shared computer or device.
How Many Days Should You Record?
Your monitoring schedule depends on its purpose. Ask whether you are collecting readings to help confirm a diagnosis, assess a treatment change, or support an ongoing review.
For diagnosis, NICE describes a home-monitoring protocol with two seated readings at least one minute apart, morning and evening, for at least four days and ideally seven. Under that protocol, the first day is excluded from the diagnostic average.
That does not mean everyone should measure twice daily indefinitely. Follow the schedule agreed with your healthcare professional.
Write the start and finish dates on your log. If the instructions are unclear, ask before collecting weeks of readings that may not match what your clinician needs.
What Belongs in the Notes Column?
Keep notes brief and factual. Examples include:
- “Spoke during the first measurement.”
- “Forgot the evening session.”
- “Monitor showed an error before the recorded readings.”
- “Medication changed by prescriber on this date.”
- “Question for appointment: confirm cuff fit.”
Describe what happened without deciding what caused a result.
For example, “felt worried before measuring” is more useful than “this reading is only anxiety.” Your healthcare professional can assess the numbers alongside the context.
Our stress and high blood pressure guide explores that topic separately.
Should You Calculate an Average?
Ask which readings your clinician wants included. Different monitoring protocols may specify different dates or exclusions.
If you are asked to calculate an average, calculate the two columns separately:
Average systolic pressure = total of included systolic values ÷ number of included readings
Average diastolic pressure = total of included diastolic values ÷ number of included readings
For example, these four fictional readings:
| Reading | Systolic | Diastolic |
|---|---|---|
| 1 | 132 | 82 |
| 2 | 128 | 80 |
| 3 | 134 | 84 |
| 4 | 130 | 82 |
| Average | 131 | 82 |
Keep the original measurements alongside any average. This example demonstrates arithmetic; it does not establish a diagnosis or treatment target.
Do not use an average to dismiss an individual reading that meets your urgent-action instructions.
What if You Miss a Session?
Leave a blank or write “not measured.” Do not copy a previous result into the missing space.
If you accidentally measure at a different time, record the actual time. If several sessions are missing, ask whether your healthcare professional wants you to extend or restart the recording period.
The record should show what you measured, including any gaps.
Paper, Spreadsheet, or Monitor Memory?
Choose the format you can use reliably.
| Format | Useful feature | Check before relying on it |
|---|---|---|
| Paper notebook | Easy to write short notes | Dates and numbers remain legible |
| Printed table | Consistent layout | Enough space for both readings |
| Spreadsheet | Easy organisation and arithmetic | Formulas include the intended cells |
| Monitor memory | Stores measurements automatically | Date, time, and user selection are correct |
| Phone app | Convenient access | Results can be shared in a readable format |
If you share a monitor, confirm how it separates users. Avoid presenting another person’s measurements as part of your own record.
Prepare Your Log for a Medical Review
Before your appointment, check that the record is readable and that the dates are clear.
Write down the questions you want answered:
- What does this pattern mean for me?
- Is my measurement schedule appropriate?
- Should we check my technique or monitor?
- What target should I use?
- When should I send another set of readings?
- Which results require urgent contact?
Home records can help your healthcare professional assess treatment, but they do not replace follow-up care. Do not stop or change prescribed medication based on the log without medical advice.
When Recording Must Give Way to Urgent Help
If your systolic pressure is above 180 or your diastolic pressure is above 120, and you have no concerning symptoms, wait at least one minute and repeat. If it remains that high, contact a healthcare professional immediately.
With chest pain, shortness of breath, weakness, vision changes, or difficulty speaking, call your local emergency service immediately. Do not delay to finish the log.
Using the Log Alongside Everyday Habits
You can note when you begin a new routine so you remember to discuss it at your review. Keep those notes separate from conclusions about whether the routine caused a change.
Explore our guides to daily habits for blood pressure and breathing exercises for blood pressure for related reading.
If you are considering a commercial audio program, read the Christian Goodman Blood Pressure Exercises review before making a purchase decision.
Start Your Record
Choose your format, write down the agreed schedule, and prepare space for paired readings.
For the measurement routine, return to how to measure blood pressure at home. For help understanding the numbers, continue to blood pressure readings explained.
This guide provides general adult health information. Your healthcare professional should set your monitoring schedule and treatment plan.