Endocrinology• Updated 21 October 2026
Home Blood Sugar Monitoring
Checking your blood sugar at home with a glucometer and finger-prick test.
Results: Seconds Specimen: Finger-prick blood
Quick Summary
Primary Purpose
To manage diabetes, adjust insulin and spot low or high sugar.
What It Measures
Capillary blood glucose.
Preparation
Wash and dry hands; use the meter as instructed.
Overview
How often to test depends on your treatment.
Keep a record to share with your doctor.
What It Measures
Blood glucose
At that moment.
How It's Performed
- 01
Prick
The side of a fingertip.
- 02
Apply
Blood to the strip.
- 03
Record
The reading and time.
Reference Ranges
Note: Normal ranges vary by laboratory. Consult your report for the specific reference used.
| Parameter | Typical Range (Adult) | Units |
|---|---|---|
| Before meals (many adults) | 80–130 | mg/dL |
| 2 hours after meals | Below 180 | mg/dL |
Interpreting Results & Next Steps
Discuss with Doctor
Your doctor will explain what your result means and what happens next.
If values are Low:
Below 70 mg/dL is low: treat with sugar.
If values are High:
Persistently high readings need treatment review.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Blood Glucose Test(opens in a new tab) · MedlinePlus, US National Library of Medicine