Glucose Unit Conversion
0.37 mmol/L equals 6.7 mg/dL.
Conversion Method
To convert glucose from mmol/L to mg/dL, you have two equivalent options 1:
- Divide by 0.0555, or
- Multiply by 18
Using either method:
- 0.37 mmol/L ÷ 0.0555 = 6.7 mg/dL
- 0.37 mmol/L × 18 = 6.7 mg/dL
Clinical Context
This glucose value of 6.7 mg/dL (0.37 mmol/L) represents severe hypoglycemia and requires immediate clinical attention 1:
- Normal fasting glucose range: 70-99 mg/dL (3.9-5.5 mmol/L) 2
- Hypoglycemia threshold: <70 mg/dL (<3.9 mmol/L) 3, 4
- This value (6.7 mg/dL) is critically low and incompatible with normal consciousness
Important Caveats for Glucose Measurement
When interpreting glucose values, particularly at critically low levels, consider these factors 1:
- Meter accuracy standards: Home glucose meters must be within ±15 mg/dL of laboratory results at glucose concentrations <100 mg/dL 1
- Interfering substances: Maltose, galactose, and xylose can falsely elevate readings on some meters; however, at this critically low level, interference is less likely to be the issue 1
- Sample site matters: Alternate site testing (forearm, thigh) may show temporal lag compared to fingertip samples when glucose is changing rapidly 1
For values this critically low, immediate confirmation with laboratory plasma glucose measurement is essential, while simultaneously treating the presumed hypoglycemia 1.