Galactose-1-phosphate uridyltransferase blood test

What is Galactose-1-phosphate uridyltransferase Blood Test?

A galactose-1-phosphate uridyltransferase (GALT) blood test is a diagnostic tool used to diagnose galactosemia, an inherited disorder that causes the body to be unable to break down and digest galactose, which is a simple sugar found in some foods. It is also used to determine the risk of a child developing galactosemia.

Preparation for GALT Blood Test

No preparation is required for a GALT blood test. A healthcare provider will draw a blood sample from a vein in the arm for testing.

Procedure for the GALT Blood Test

During the GALT blood test, a healthcare provider will draw a sample of blood from a vein in the arm. The sample is then sent to a lab for analysis.

Types of GALT Blood Test

There are two different types of GALT blood tests: quantitative and qualitative. The quantitative test measures the amount of GALT enzyme in the blood. The qualitative test measures the activity of the GALT enzyme.

Risks of GALT Blood Test

As with any blood draw, there is a small risk of infection, bruising, and soreness at the puncture site. Rarely, a person may faint or feel lightheaded during the blood draw procedure.

Why is the GALT Blood Test Ordered?

The GALT blood test is ordered when a healthcare provider suspects that a person has galactosemia or if there is a family history of galactosemia. The test can also be used to screen newborns for the disorder.

When is the GALT Blood Test Ordered?

The GALT blood test is generally ordered when a healthcare provider suspects that a person has galactosemia. The test can also be ordered when a pregnant woman has a family history of galactosemia or if a newborn is at high risk for the disorder.