NormRangeWhat the normal range is at your age — with the source printed on the page.

Blood sugar 282 1 hour after eating

282 mg/dL
Well above target
Blood sugar of 282 mg/dL measured 1 hour after a meal is well above the post-meal target by the ADA Standards of Care thresholds
Where it fallsthe ADA Standards of Care thresholdsWell above target
Blood sugarmeasured 1 hour after a meal282mg/dL
Usual reference rangeunder 140 in most people without diabetesmg/dL
Same reading in mmol/Lthe unit used in the UK, Canada, Australia and most of Europe15.7mmol/L
A1C this would imply if held constantreversing the ADAG formula — a single reading cannot actually predict A1C11.5%
Level 2 hypoglycaemiaunder 54mg/dL
Level 1 hypoglycaemia54 – 69mg/dL
Typical non-diabetic peak70 – 139mg/dL
Above the usual peak, within ADA target140 – 179mg/dL
Above the ADA post-meal target180 – 249mg/dL
Well above targetthis reading250 and abovemg/dL

Notes

  • A blood sugar of 282 mg/dL is outside the range a web page should be the end of. Repeat the measurement, and contact a doctor rather than reading further. If it comes with chest pain, breathlessness, confusion, weakness or a change in vision, treat it as an emergency.
  • Reference ranges differ between laboratories. The bands above follow the ADA Standards of Care thresholds. Your own report prints the range its analyser was calibrated against, and that printed range is the one to compare against — a difference of a few units between labs is normal and does not mean either is wrong.
  • There is no diagnostic category for a one-hour post-meal reading in non-pregnant adults. The bands above mix two different things: what people without diabetes typically peak at, and the under-180 post-meal figure ADA sets as a treatment target for people already diagnosed. Neither is a diagnosis. Pregnancy is the exception — gestational diabetes screening does use a one-hour threshold, and it is a different number again.
  • A meter is not a laboratory. Home glucose meters are permitted a margin of ±15% against a lab reference under ISO 15197, so a meter reading of 282 mg/dL is consistent with a lab value roughly between 240 and 324. Diagnosis is made on venous laboratory plasma glucose, never on a finger-stick.

What blood sugar reading of 282 mg/dL means

A reading of 282 mg/dLmeasured 1 hour after a meal falls in Well above target by the ADA Standards of Care thresholds.

The usual reference range is under 140 in most people without diabetes mg/dL.

Reading it next to the rest of the picture

A single figure is a snapshot. What a clinician does with it is set by what sits around it — the other results on the same report, what the person is being treated for, what they were doing in the hours before the sample, and what the previous result was. Two people can hand over the same number and leave with different advice, and neither has been given the wrong answer.

That is also why the bands on this page are drawn from a named guideline rather than from a rounded rule of thumb. A threshold is a decision point somebody argued for in print, not a law of nature, and knowing which document a line comes from is what lets you tell a meaningful result from a borderline one.

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