Genetic analysis for deletions/duplications in the DMD gene (Duchenne/Becker Muscular Dystrophy)

This test helps your healthcare provider check how well your body is working and look for signs of certain health conditions. It can confirm a suspected diagnosis, rule out possible causes of your symptoms, or be part of a routine checkup to monitor your overall health.

Doctors may recommend this test if you or your child have symptoms of muscle weakness, delayed motor development, or a family history of Duchenne or Becker muscular dystrophy. It can also be used to confirm a diagnosis or guide treatment planning.

During this test, a small sample is collected from your body and examined in a laboratory using specialized equipment. Trained laboratory professionals analyze the sample to measure specific substances or markers, and your results are compared against standard reference ranges to see whether your values fall within a normal range.

Blood is drawn to collect a sample, which is then analyzed to detect deletions or duplications in the DMD gene. Advanced techniques like multiplex ligation-dependent probe amplification (MLPA) or next-generation sequencing are commonly used to identify these genetic changes.

Your healthcare provider will give you specific instructions to prepare for this test. You may be asked to avoid eating or drinking for a certain period of time, temporarily stop taking certain medications, or avoid strenuous exercise. Be sure to tell your provider about any medications, supplements, or allergies you have before the day of the test.

No special preparation is needed for this test. You may be asked to fast before the blood draw, but this is not always required. Bring any relevant medical records or family history details to your appointment.

The test itself is usually quick and relatively comfortable. A trained healthcare professional will collect the sample needed, which may involve drawing a small amount of blood or obtaining another type of specimen. You may feel a brief pinch or slight discomfort, but the entire process typically takes only a few minutes, and you can usually return to your normal activities right away.

A healthcare provider will insert a needle into a vein in your arm to draw blood. You may feel a slight sting, but it usually takes only a few minutes. You can sit or lie down while the blood is drawn.