Blood Sugar Fasting (Glucose)

A Fasting Glucose Test is a blood test that measures your blood glucose (blood sugar) level after fasting for 8–12 hours.

You can sit comfortably while the blood sample is collected; no special positioning is needed.

No. Apart from fasting for 8–12 hours, no additional preparation is usually required unless your doctor advises otherwise.

Eating before the test may affect the test result. Your doctor or the diagnostic facility may advise repeating the test if required.

Yes, you can drink plain water before the test unless your doctor has given you different instructions.

Your doctor may recommend a Fasting Glucose Test if you have symptoms such as increased thirst, frequent urination, unexplained weight changes, blurred vision or unusual tiredness. It may also be requested as part of a routine health check-up or based on your medical history.

Yes, you can brush your teeth before a fasting blood test, but avoid swallowing toothpaste or water. This ensures your fasting state remains intact and keeps the results accurate.

Blood sample collection usually takes only a few minutes.