226 mg/dL
= 12.5 mmol/LHigh
A glucose reading of 226 mg/dL is 12.5 mmol/L (12.54 before rounding; 1 mmol/L = 18.01559 mg/dL). It is 46 mg/dL above the top of the target range (180).
226 mg/dL against each published threshold
| Threshold | 226 mg/dL is |
|---|---|
| CGM target range, 2019 international consensus | High (181–250 mg/dL) |
| ADA goal before meals, many adults with diabetes: 80–130 | Above the goal |
| ADA goal for the peak after meals: below 180 | Above the goal |
| Fasting lab test (no food for 8 h) | In the diabetes range (126 or above) |
| 2 hours into a 75 g glucose test | In the diabetes range (200 or above) |
The CGM range and the ADA goals are for people who have diabetes; a care team can set different ones. The two lab tests are how diabetes is diagnosed, on a plasma sample, and ADA asks for two abnormal results unless the high glucose is unmistakable. One meter or CGM reading does not diagnose anything.
Above 200
ADA advises people at risk of DKA to measure ketones when there are symptoms or a likely cause, such as illness or a missed insulin dose, “particularly if glucose levels exceed 200 mg/dL”.