How we read your numbers
Every word the diary shows comes from a published guideline. Here are the exact numbers, so you — and your doctor — can check them.
Blood pressure words
We use the Indian Council of Medical Research's Standard Treatment Workflow for hypertension in adults (May 2026). It is what Indian clinics work from, and it starts calling BP high at 140/90 — the same line your doctor uses.
The top number and the bottom number are read separately; the higher of the two decides the word. So 135/90 is read as High · Grade 1, because the bottom number is in that band.
| Word on the screen | Top / bottom | Name in the doctor's PDF |
|---|---|---|
| Normal | <120 and <80 | Normal |
| Slightly high | 120–139 or 80–89 | Elevated |
| High · Grade 1 | 140–159 or 90–99 | HTN Grade 1 |
| High · Grade 2 | 160–179 or 100–109 | HTN Grade 2 |
| Very high | ≥180 or ≥110 | HTN Grade 3 |
| Very high | ≥180 or ≥120 | ≥180/120 |
| Low | <90 or <60 | Low (<90/60) |
Low: below 90 top or 60 bottom (NHS). Low readings are only a concern with dizziness or fainting — tell your doctor. A high band always wins over low: 150/55 reads High · Grade 1.
Readings that need action now
For these readings the diary saves the number first, then shows a plain screen with what to do. It never moves, never celebrates and never hides behind an ad.
BP 180/120 or more
Sit quietly for 5 minutes and measure again. With chest pain, breathlessness, sudden weakness, numbness or trouble speaking, blurred vision, confusion or a severe headache: go to a hospital now or call 108. If you feel fine, call your doctor today.
Sugar below 70 mg/dL
Take 15 g of sugar now and check again in 15 minutes. If the person is very drowsy, confused or cannot swallow, put nothing in the mouth and call 108.
Sugar above 250 mg/dL
Tell your doctor today. With vomiting, great thirst, drowsiness, confusion or fast breathing, go to a hospital now.
These steps are reminders of first aid from the guidelines below; a doctor is reviewing the exact words before the app is released.
Sugar ranges
Sugar targets come from ICMR's workflow for type 2 diabetes (2022) and the American Diabetes Association (ADA) Standards of Care 2026, which agree: before a meal 80–130 mg/dL, after a meal under 180. For bedtime and any-time readings we use the 70–180 range.
| When you measured | In range |
|---|---|
| Fasting or before a meal | 80–130 |
| 2 hours after a meal | 70–179 |
| Bedtime or any time | 70–180 |
| Word on the screen | Fasting or before a meal | 2 hours after a meal | Bedtime or any time |
|---|---|---|---|
| Very low — act now | <54 | <54 | <54 |
| Low — act now | 54–69 | 54–69 | 54–69 |
| A bit low | 70–79 | — | — |
| In range | 80–130 | 70–179 | 70–180 |
| A bit high | 131–179 | — | — |
| High | 180–250 | 180–250 | 181–250 |
| Very high | >250 | >250 | >250 |
These are targets for people who have diabetes. A home meter reading cannot diagnose diabetes, so the diary never says “diabetes” or “prediabetes” about a reading.
One reading is not a diagnosis
ICMR diagnoses high BP only after readings of 140/90 or more on two different clinic visits. Home readings are usually a little lower than clinic readings.
Your doctor may set a different target for you — ICMR suggests under 150/90 at 80 and over, and under 130/80 with diabetes, kidney or heart disease. Follow your doctor.
The 7-day average in the diary uses the same words, and only appears once there are at least 3 readings.
Sources
- ICMR / DHR — Standard Treatment Workflow: Hypertension in Adults (May 2026)Government of India
- ICMR / DHR — Standard Treatment Workflow: Diabetes Mellitus Type 2 (July 2022)Government of India
- American Diabetes Association — Standards of Care in Diabetes 2026, section 6Medical society
- NHS — Low blood pressure (hypotension)Public health service
We are not affiliated with any of these organisations.
Think a number here is wrong?
Write to us with the reading and the source you are looking at. We fix the rules in an app update.