how accurate is a1c blood test

The A1C test is generally considered a reliable and accurate measure of average blood sugar levels over the past 2-3 months. However, its accuracy can be influenced by several factors:

• Conditions affecting red blood cells: Conditions like anemia, sickle cell anemia, or recent blood transfusions can affect A1C results.
• Kidney or liver disease: These conditions may alter the lifespan of red blood cells, impacting A1C accuracy.
• Medications: Certain medications, such as opioids or HIV drugs, can interfere with the test.
• Pregnancy: Hormonal changes during pregnancy can also affect A1C levels.

For most people, the A1C test provides a good estimate of long-term blood sugar control, but it should be interpreted in the context of other tests and clinical evaluations. Always consult your healthcare provider for a comprehensive assessment.