Glucose testing is a medical procedure used to measure the level of glucose (sugar) in the blood. This test helps diagnose conditions like diabetes and monitor blood sugar levels in individuals with the disease. It can be performed using a fingerstick method or a blood draw from a vein, and results can be available quickly or sent to a lab for analysis. There are different types of glucose tests, including the fasting blood glucose test, which measures blood sugar after an overnight fast, and the oral glucose tolerance test, which assesses how the body processes sugar after consuming a sugary drink. Regular glucose testing is essential for managing health and preventing complications.