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Galactose-1-phosphate uridyltransferase
Definition
Galactose-1-phosphate uridyltransferase is a blood test that measures the level of a substance called GALT, which helps break down milk sugars (lactose/galactose).
Alternative Names
Galactosemia screen; GALT; Gal-1-PUT
Why the Test is Performed
This is a screening test for galactosemia.
In normal diets, most galactose comes from the breakdown (metabolism) of lactose, which is found in milk and dairy products. About 1 out of 65,000 newborns lack a substance (enzyme) called GALT. Without this substance, the body can't break down galactose, and the substance builds up in the blood. Continued use of milk products can lead to failure to thrive, as well as cataracts, jaundice, liver enlargement, cirrhosis, and mental retardation.
How the Test is Performed
Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.
Next, the health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm.
Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.
In infants or young children, a sharp tool called a lancet may be used to puncture the skin and make it bleed. The blood collects into a small glass tube called a pipette, or onto a slide or test strip. A bandage may be placed over the area if there is any bleeding.
How to Prepare for the Test
For help preparing your baby for the test, see infant test or procedure preparation (birth to 1 year).
How the Test Will Feel
When the needle is inserted to draw blood, some infants feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.
Risks
Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.
Other risks associated with having blood drawn are slight but may include:
- Excessive bleeding
- Fainting or feeling light-headed
- Hematoma (blood accumulating under the skin)
- Infection (a slight risk any time the skin is broken)
Considerations
Early diagnosis is important, since the disease can be treated by removing milk from the diet.
Some states require that all newborns be screened for this disorder. These screening tests are set to be very sensitive so they do not miss many infants with galactosemia. Because of this, false-positives can occur. If your child has an abnormal screening result, follow-up tests must be done to confirm the result.
See: Newborn screening tests
Normal Results
The normal range is 18.5 to 28.5 U/g Hb (units per gram of hemoglobin).
It is important to note that normal values vary from laboratory to laboratory.
What Abnormal Results Mean
An abnormal result suggests galactosemia. Further tests must be done to confirm the diagnosis.
If your child has galactosemia, a genetics specialist should be consulted promptly. The child should immediately be placed on a no-milk diet. This means no breast milk and no animal milk. Soy milk and infant soy formulas are generally used as substitutes. For more detailed information, see the article on galactosemia.
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Typical mistypes for Galactose-1-phosphate uridyltransferase
falactose-1-phosphate uridyltransferase, valactose-1-phosphate uridyltransferase, balactose-1-phosphate uridyltransferase, halactose-1-phosphate uridyltransferase, yalactose-1-phosphate uridyltransferase, talactose-1-phosphate uridyltransferase, gzlactose-1-phosphate uridyltransferase, gslactose-1-phosphate uridyltransferase, gwlactose-1-phosphate uridyltransferase, gqlactose-1-phosphate uridyltransferase, gakactose-1-phosphate uridyltransferase, gapactose-1-phosphate uridyltransferase, gaoactose-1-phosphate uridyltransferase, galzctose-1-phosphate uridyltransferase, galsctose-1-phosphate uridyltransferase, galwctose-1-phosphate uridyltransferase, galqctose-1-phosphate uridyltransferase, galaxtose-1-phosphate uridyltransferase, galavtose-1-phosphate uridyltransferase, galaftose-1-phosphate uridyltransferase, galadtose-1-phosphate uridyltransferase, galacrose-1-phosphate uridyltransferase, galacfose-1-phosphate uridyltransferase, galacgose-1-phosphate uridyltransferase, galacyose-1-phosphate uridyltransferase, galac6ose-1-phosphate uridyltransferase, galac5ose-1-phosphate uridyltransferase, galactise-1-phosphate uridyltransferase, galactkse-1-phosphate uridyltransferase, galactlse-1-phosphate uridyltransferase, galactpse-1-phosphate uridyltransferase, galact0se-1-phosphate uridyltransferase, galact9se-1-phosphate uridyltransferase, galactoae-1-phosphate uridyltransferase, galactoze-1-phosphate uridyltransferase, galactoxe-1-phosphate uridyltransferase, galactode-1-phosphate uridyltransferase, galactoee-1-phosphate uridyltransferase, galactowe-1-phosphate uridyltransferase, galactosw-1-phosphate uridyltransferase, galactoss-1-phosphate uridyltransferase, galactosd-1-phosphate uridyltransferase, galactosr-1-phosphate uridyltransferase, galactos4-1-phosphate uridyltransferase, galactos3-1-phosphate uridyltransferase, galactose01-phosphate uridyltransferase, galactosep1-phosphate uridyltransferase, galactose-2-phosphate uridyltransferase, galactose-q-phosphate uridyltransferase, galactose-10phosphate uridyltransferase, galactose-1pphosphate uridyltransferase, galactose-1-ohosphate uridyltransferase, galactose-1-lhosphate uridyltransferase, galactose-1--hosphate uridyltransferase, galactose-1-0hosphate uridyltransferase, galactose-1-pgosphate uridyltransferase, galactose-1-pbosphate uridyltransferase, galactose-1-pnosphate uridyltransferase, galactose-1-pjosphate uridyltransferase, galactose-1-puosphate uridyltransferase, galactose-1-pyosphate uridyltransferase, galactose-1-phisphate uridyltransferase, galactose-1-phksphate uridyltransferase, galactose-1-phlsphate uridyltransferase, galactose-1-phpsphate uridyltransferase, galactose-1-ph0sphate uridyltransferase, galactose-1-ph9sphate uridyltransferase, galactose-1-phoaphate uridyltransferase, galactose-1-phozphate uridyltransferase, galactose-1-phoxphate uridyltransferase, galactose-1-phodphate uridyltransferase, galactose-1-phoephate uridyltransferase, galactose-1-phowphate uridyltransferase, galactose-1-phosohate uridyltransferase, galactose-1-phoslhate uridyltransferase, galactose-1-phos-hate uridyltransferase, galactose-1-phos0hate uridyltransferase, galactose-1-phospgate uridyltransferase, galactose-1-phospbate uridyltransferase, galactose-1-phospnate uridyltransferase, galactose-1-phospjate uridyltransferase, galactose-1-phospuate uridyltransferase, galactose-1-phospyate uridyltransferase, galactose-1-phosphzte uridyltransferase, galactose-1-phosphste uridyltransferase, galactose-1-phosphwte uridyltransferase, galactose-1-phosphqte uridyltransferase, galactose-1-phosphare uridyltransferase, galactose-1-phosphafe uridyltransferase, galactose-1-phosphage uridyltransferase, galactose-1-phosphaye uridyltransferase, galactose-1-phospha6e uridyltransferase, galactose-1-phospha5e uridyltransferase, galactose-1-phosphatw uridyltransferase, galactose-1-phosphats uridyltransferase, galactose-1-phosphatd uridyltransferase, galactose-1-phosphatr uridyltransferase, galactose-1-phosphat4 uridyltransferase, galactose-1-phosphat3 uridyltransferase, galactose-1-phosphate yridyltransferase, galactose-1-phosphate hridyltransferase, galactose-1-phosphate jridyltransferase, galactose-1-phosphate iridyltransferase, galactose-1-phosphate 8ridyltransferase, galactose-1-phosphate 7ridyltransferase, galactose-1-phosphate ueidyltransferase, galactose-1-phosphate udidyltransferase, galactose-1-phosphate ufidyltransferase, galactose-1-phosphate utidyltransferase, galactose-1-phosphate u5idyltransferase, galactose-1-phosphate u4idyltransferase, galactose-1-phosphate urudyltransferase, galactose-1-phosphate urjdyltransferase, galactose-1-phosphate urkdyltransferase, galactose-1-phosphate urodyltransferase, galactose-1-phosphate ur9dyltransferase, galactose-1-phosphate ur8dyltransferase, galactose-1-phosphate urisyltransferase, galactose-1-phosphate urixyltransferase, galactose-1-phosphate uricyltransferase, galactose-1-phosphate urifyltransferase, galactose-1-phosphate uriryltransferase, galactose-1-phosphate urieyltransferase, galactose-1-phosphate uridtltransferase, galactose-1-phosphate uridgltransferase, galactose-1-phosphate uridhltransferase, galactose-1-phosphate uridultransferase, galactose-1-phosphate urid7ltransferase, galactose-1-phosphate urid6ltransferase, galactose-1-phosphate uridyktransferase, galactose-1-phosphate uridyptransferase, galactose-1-phosphate uridyotransferase, galactose-1-phosphate uridylrransferase, galactose-1-phosphate uridylfransferase, galactose-1-phosphate uridylgransferase, galactose-1-phosphate uridylyransferase, galactose-1-phosphate uridyl6ransferase, galactose-1-phosphate uridyl5ransferase, galactose-1-phosphate uridylteansferase, galactose-1-phosphate uridyltdansferase, galactose-1-phosphate uridyltfansferase, galactose-1-phosphate uridylttansferase, galactose-1-phosphate uridylt5ansferase, galactose-1-phosphate uridylt4ansferase, galactose-1-phosphate uridyltrznsferase, galactose-1-phosphate uridyltrsnsferase, galactose-1-phosphate uridyltrwnsferase, galactose-1-phosphate uridyltrqnsferase, galactose-1-phosphate uridyltrabsferase, galactose-1-phosphate uridyltramsferase, galactose-1-phosphate uridyltrajsferase, galactose-1-phosphate uridyltrahsferase, galactose-1-phosphate uridyltranaferase, galactose-1-phosphate uridyltranzferase, galactose-1-phosphate uridyltranxferase, galactose-1-phosphate uridyltrandferase, galactose-1-phosphate uridyltraneferase, galactose-1-phosphate uridyltranwferase, galactose-1-phosphate uridyltransderase, galactose-1-phosphate uridyltranscerase, galactose-1-phosphate uridyltransverase, galactose-1-phosphate uridyltransgerase, galactose-1-phosphate uridyltransterase, galactose-1-phosphate uridyltransrerase, galactose-1-phosphate uridyltransfwrase, galactose-1-phosphate uridyltransfsrase, galactose-1-phosphate uridyltransfdrase, galactose-1-phosphate uridyltransfrrase, galactose-1-phosphate uridyltransf4rase, galactose-1-phosphate uridyltransf3rase, galactose-1-phosphate uridyltransfeease, galactose-1-phosphate uridyltransfedase, galactose-1-phosphate uridyltransfefase, galactose-1-phosphate uridyltransfetase, galactose-1-phosphate uridyltransfe5ase, galactose-1-phosphate uridyltransfe4ase, galactose-1-phosphate uridyltransferzse, galactose-1-phosphate uridyltransfersse, galactose-1-phosphate uridyltransferwse, galactose-1-phosphate uridyltransferqse, galactose-1-phosphate uridyltransferaae, galactose-1-phosphate uridyltransferaze, galactose-1-phosphate uridyltransferaxe, galactose-1-phosphate uridyltransferade, galactose-1-phosphate uridyltransferaee, galactose-1-phosphate uridyltransferawe, galactose-1-phosphate uridyltransferasw, galactose-1-phosphate uridyltransferass, galactose-1-phosphate uridyltransferasd, galactose-1-phosphate uridyltransferasr, galactose-1-phosphate uridyltransferas4, galactose-1-phosphate uridyltransferas3, alactose-1-phosphate uridyltransferase, glactose-1-phosphate uridyltransferase, gaactose-1-phosphate uridyltransferase, galctose-1-phosphate uridyltransferase, galatose-1-phosphate uridyltransferase, galacose-1-phosphate uridyltransferase, galactse-1-phosphate uridyltransferase, galactoe-1-phosphate uridyltransferase, galactos-1-phosphate uridyltransferase, galactose1-phosphate uridyltransferase, galactose--phosphate uridyltransferase, galactose-1phosphate uridyltransferase, galactose-1-hosphate uridyltransferase, galactose-1-posphate uridyltransferase, galactose-1-phsphate uridyltransferase, galactose-1-phophate uridyltransferase, galactose-1-phoshate uridyltransferase, galactose-1-phospate uridyltransferase, galactose-1-phosphte uridyltransferase, galactose-1-phosphae uridyltransferase, galactose-1-phosphat uridyltransferase, galactose-1-phosphateuridyltransferase, galactose-1-phosphate ridyltransferase, galactose-1-phosphate uidyltransferase, galactose-1-phosphate urdyltransferase, galactose-1-phosphate uriyltransferase, galactose-1-phosphate uridltransferase, galactose-1-phosphate uridytransferase, galactose-1-phosphate uridylransferase, galactose-1-phosphate uridyltansferase, galactose-1-phosphate uridyltrnsferase, galactose-1-phosphate uridyltrasferase, galactose-1-phosphate uridyltranferase, galactose-1-phosphate uridyltranserase, galactose-1-phosphate uridyltransfrase, galactose-1-phosphate uridyltransfease, galactose-1-phosphate uridyltransferse, galactose-1-phosphate uridyltransferae, galactose-1-phosphate uridyltransferas, aglactose-1-phosphate uridyltransferase, glaactose-1-phosphate uridyltransferase, gaalctose-1-phosphate uridyltransferase, galcatose-1-phosphate uridyltransferase, galatcose-1-phosphate uridyltransferase, galacotse-1-phosphate uridyltransferase, galactsoe-1-phosphate uridyltransferase, galactoes-1-phosphate uridyltransferase, galactos-e1-phosphate uridyltransferase, galactose1--phosphate uridyltransferase, galactose--1phosphate uridyltransferase, galactose-1p-hosphate uridyltransferase, galactose-1-hposphate uridyltransferase, galactose-1-pohsphate uridyltransferase, galactose-1-phsophate uridyltransferase, galactose-1-phopshate uridyltransferase, galactose-1-phoshpate uridyltransferase, galactose-1-phospahte uridyltransferase, galactose-1-phosphtae uridyltransferase, galactose-1-phosphaet uridyltransferase, galactose-1-phosphat euridyltransferase, galactose-1-phosphateu ridyltransferase, galactose-1-phosphate ruidyltransferase, galactose-1-phosphate uirdyltransferase, galactose-1-phosphate urdiyltransferase, galactose-1-phosphate uriydltransferase, galactose-1-phosphate uridlytransferase, galactose-1-phosphate uridytlransferase, galactose-1-phosphate uridylrtansferase, galactose-1-phosphate uridyltarnsferase, galactose-1-phosphate uridyltrnasferase, galactose-1-phosphate uridyltrasnferase, galactose-1-phosphate uridyltranfserase, galactose-1-phosphate uridyltransefrase, galactose-1-phosphate uridyltransfrease, galactose-1-phosphate uridyltransfearse, galactose-1-phosphate uridyltransfersae, galactose-1-phosphate uridyltransferaes, ggalactose-1-phosphate uridyltransferase, gaalactose-1-phosphate uridyltransferase, gallactose-1-phosphate uridyltransferase, galaactose-1-phosphate uridyltransferase, galacctose-1-phosphate uridyltransferase, galacttose-1-phosphate uridyltransferase, galactoose-1-phosphate uridyltransferase, galactosse-1-phosphate uridyltransferase, galactosee-1-phosphate uridyltransferase, galactose--1-phosphate uridyltransferase, galactose-11-phosphate uridyltransferase, galactose-1--phosphate uridyltransferase, galactose-1-pphosphate uridyltransferase, galactose-1-phhosphate uridyltransferase, galactose-1-phoosphate uridyltransferase, galactose-1-phossphate uridyltransferase, galactose-1-phospphate uridyltransferase, galactose-1-phosphhate uridyltransferase, galactose-1-phosphaate uridyltransferase, galactose-1-phosphatte uridyltransferase, galactose-1-phosphatee uridyltransferase, galactose-1-phosphate uridyltransferase, galactose-1-phosphate uuridyltransferase, galactose-1-phosphate urridyltransferase, galactose-1-phosphate uriidyltransferase, galactose-1-phosphate uriddyltransferase, galactose-1-phosphate uridyyltransferase, galactose-1-phosphate uridylltransferase, galactose-1-phosphate uridylttransferase, galactose-1-phosphate uridyltrransferase, galactose-1-phosphate uridyltraansferase, galactose-1-phosphate uridyltrannsferase, galactose-1-phosphate uridyltranssferase, galactose-1-phosphate uridyltransfferase, galactose-1-phosphate uridyltransfeerase, galactose-1-phosphate uridyltransferrase, galactose-1-phosphate uridyltransferaase, galactose-1-phosphate uridyltransferasse, galactose-1-phosphate uridyltransferasee, etc.
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