what does a glucose test show

A glucose test measures the amount of glucose (sugar) in your blood. It is commonly used to diagnose and monitor diabetes and prediabetes. Here’s what different glucose tests can show:

• Fasting Blood Glucose Test: Measures blood sugar after an overnight fast. Normal levels are below 100 mg/dL. Levels between 100-125 mg/dL indicate prediabetes, and 126 mg/dL or higher suggest diabetes.
• Oral Glucose Tolerance Test (OGTT): Measures blood sugar before and after drinking a glucose-rich drink. It helps diagnose gestational diabetes and type 2 diabetes.
• Random Blood Glucose Test: Measures blood sugar at any time, regardless of when you last ate. A level of 200 mg/dL or higher may indicate diabetes.
• A1C Test: Provides an average blood sugar level over the past 2-3 months. An A1C below 5.7% is normal, 5.7%-6.4% indicates prediabetes, and 6.5% or higher suggests diabetes.

These tests help healthcare providers assess your blood sugar control and risk for diabetes-related complications.