This is a free plotter for the home readings you already take — blood pressure and blood sugar. Paste in your numbers and it draws the pattern your GP actually reads: the morning-versus-evening difference, how much your readings spread, and which ones sit outside the usual Australian range.
It is for anyone keeping a home log — whether you have been asked to monitor your blood pressure before a medicine review, or you are tracking glucose with diabetes or pre-diabetes. A column of numbers is hard to interpret; a trend is not.
It runs entirely in your browser and stores nothing. The output is built to be screenshotted and handed over, so the appointment starts from your pattern rather than a single in-clinic reading.
General information to help you prepare for your GP — not a diagnosis, not personal medical advice.
Free patient tool · prepare for your GP visit
Paste your home readings and see the picture your GP reads off a trend — your mornings, your spread, the readings outside the usual range. Nothing you type leaves your browser.
Your readings
What the pattern shows
Your trend
The honest bit
For blood pressure, the trend matters more than any single reading — a doctor looks at your average across several days, the gap between morning and evening, and how variable the numbers are. Many guidelines treat a home average around 135/85 mmHg as a common discussion point, but your target is individual and set with your GP.
For blood sugar, the same logic applies: the shape of the day (fasting versus after meals) and the consistency of readings tell more than one value. The plotter flags readings outside the usual range so you can see them at a glance, but a single high or low reading is rarely the whole story.
A plotter shows patterns; it does not interpret them medically. It cannot tell you what your target should be, whether a medicine is working, or what a trend means for you — those are exactly the things to take to your GP, with the picture in front of you both.
The Heart Foundation supports home blood-pressure monitoring as a complement to in-clinic readings, because home averages avoid the "white-coat" spike and give a truer picture. healthdirect has plain-language guidance on both blood pressure and blood glucose for Australians.
Home targets and how often to measure are individual — set by your GP against the relevant Australian guideline for your situation. This plotter organises your data; it does not set your target.
Screenshot the trend and bring it to your next appointment: "Here are my last few weeks of readings — does this pattern change anything about my target or my monitoring?" A clear trend makes a short appointment far more productive.
What the pattern means, and whether anything should change, is your GP's call. This tool helps you and your doctor see the data clearly; it is never a reason to start, stop or adjust any medicine on your own.
General information to help you prepare for your GP — not a diagnosis, not personal medical advice. This tool does not start, stop or change any medicine. If something is urgent, call 000.
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