Blood Pressure Log · 2017 ACC/AHA · KDIGO 2021

Blood Pressure Log & Trend

Record each home reading; the tool computes a 7-day average, maps it to the 2017 ACC/AHA categories and draws a trend. Data stays in your browser.

What this tool does

Log home blood pressure in your browser, chart the trend and bring it to your visit.

What you need

A validated upper-arm monitor; sit and rest 5 minutes, measure twice morning and evening.

What the result means

Guideline category and averages; data stays on this device and is lost if you clear browser data.

Trend

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722 — 7-2-2 rule: 7 consecutive days, 2 sessions a day (within 1 h of waking; before bed), 2 readings per session 1 minute apart, averaged.

No smoking, caffeine or exercise for 30 min; sit and rest 5 min; arm at heart level; upper-arm device; don't talk.

Home thresholds are lower than office: a home average ≥135/85 (ESH) or ≥130/80 (ACC/AHA, Taiwan) corresponds to office hypertension. This tool uses ACC/AHA thresholds.

In CKD, KDIGO 2021 suggests systolic <120 (standardised office measurement, if tolerated); dialysis and transplant targets must be individualised.

Log

DateSessionSystolic/DiastolicPulseNote

Privacy: all calculations run on your device; no values are sent to a server or third party. Log-type tools store data only in your browser (localStorage); clearing browsing data removes it.

This is not a diagnosis. It maps the numbers you entered onto published guideline categories; a real assessment needs a clinician, your history, repeat testing and other investigations.

Scope and limitations

  • Categories follow 2017 ACC/AHA; ESH 2023 calls 130–139/80–89 "high-normal", not hypertension.
  • The tool does not know your diagnosis, medications or measurement quality; averages depend heavily on technique.
  • Wrist devices and single readings are less reliable.
  • This is a log, not a prescriber — it never suggests dose changes.

Formula & cut-off sources

  1. Whelton PK, et al. 2017 ACC/AHA Guideline for High Blood Pressure in Adults. Hypertension 2018;71:e13–e115
  2. Mancia G, et al. 2023 ESH Guidelines for the management of arterial hypertension. J Hypertens 2023;41:1874–2071
  3. KDIGO 2021 Clinical Practice Guideline for the Management of Blood Pressure in CKD. Kidney Int 2021;99(3S):S1–S87
  4. Wang TD, et al. 2022 Taiwan Hypertension Guidelines (722 原則). Acta Cardiol Sin 2022;38:225–325

To discuss with your doctor

  1. How does my home average compare with office readings? Do I need 24-hour monitoring?
  2. What is my target for my age and kidney function?
  3. My morning and evening readings differ a lot — what does that mean?
  4. How should medication change if I feel dizzy with low readings?

Next step

After this result, people usually continue with: