Genetic mutation analysis for MELAS (Mitochondrial Encephalopathy, Lactic Acidosis, and Stroke-like episodes) using whole blood DNA

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like headaches, muscle weakness, vision problems, seizures, or unexplained fatigue. It’s also used for genetic counseling or before certain surgeries in individuals with a family history of MELAS.

What to Expect Before the Test

You’ll likely need a simple blood draw, usually done at a clinic or lab. No special preparation is needed, but inform your provider about any medications or health conditions.

What the Test Results Mean

If the test finds the MELAS mutation, it confirms a genetic risk for the disorder. Results may guide treatment plans, family screening, or lifestyle adjustments. Results without the mutation suggest no direct genetic link to MELAS.

Common Symptoms Linked to MELAS

Symptoms may appear in childhood or adulthood and can include recurrent headaches, muscle weakness, short-term memory loss, vision changes, or seizures. Some people experience fatigue or lactic acid buildup in the blood.