What Does NxGen MDx Screen For?

We screen for up to 120 genetic disorders that can affect your pregnancy, the health of your baby, and your family's future. You can learn more about our various screens — and which sets of screens (or "panels") align with where you are in your reproductive journey.

What Does NxGen MDx Screen For?

Glutaric Acidemia Type I

What Your Test Results Mean:

Test results indicate that you are a carrier of glutaric acidemia type I. Carriers are not expected to show symptoms. You and your partner or donor would both have to be carriers of glutaric acidemia type I for there to be an increased chance to have a child with symptoms; this is known as autosomal recessive inheritance. Carrier testing of your partner or donor is recommended in addition to consultation with a genetic counselor for a more detailed risk assessment.

Since this is an inherited gene change, this information may be helpful to share with family members as it may impact their family planning.

Disease Explained:

Glutaric acidemia type I is an inherited metabolic disorder caused by a missing enzyme, known as glutaryl-CoA dehydrogenase. Without this enzyme, the body cannot break down the amino acids lysine and tryptophan. Symptoms vary widely; some individuals are only mildly affected, while others have severe problems. Affected individuals may present with metabolic crisis or low blood sugar, leading to severe vomiting and lethargy, seizures, and other complications in times of illness, fever, or fasting. If untreated, glutaric acidemia type I can lead to brain damage, intellectual disabilities, loss of motor skills, and death.


With early diagnosis and appropriate treatment and management, prognosis is typically favorable. If left untreated or improperly managed, neurologic damage can be irreversible.


To avoid a metabolic crisis, affected individuals should avoid fasting and may be placed on a special diet. In the event of a metabolic crisis, affected individuals must undergo prompt and comprehensive emergency treatment. Diet and medications are typically managed by a metabolic physician and dietitian.

Which Screens Are Right for You?

Determining which screens or set of screens are right for you will depend on where you are in your reproductive journey. Tell us where you are today so you can learn more about how to move forward tomorrow.

Planning to Have a Baby Already Expecting
Which Screens Are Right for You?

Talk to a Genetic Counselor

As a NxGen client, you'll have access to personal genetic counselors who can help explain the results of your screens and provide insight on how to move forward. To schedule a personal conference to discuss your screen results, call (855) 776-9436. or click the link below.

Discuss Your Screening Results