Printable Test Catalog - OU Medicine

TEST INCLUDES: Galactose-1-phosphate uridyltransferase
quantitative and phenotyping
TEST AVAILABILITY: Daily
TURNAROUND TIME: 2-5 days
METHODOLOGY: Isoelectric Focusing
CLINICAL USE: Determine the likely genotype when quantitative
galactose-1-phosphate uridyltransferase (GALT)
data suggests a GG or DG genotype (a patient with
a GG genotype must be on a galactose-free diet).
The biochemical phenotype of a child should be
identified when the activity of GALT is 10.0 U/g
of hemoglobin or less
CPT: 82664
[GALPUTQNT] Galactose-1-Phos Uridyl Transferase
SPECIMEN REQUIRED: Refrigerated whole blood
TUBE OR CONTAINER: Lavender (EDTA)
SPECIMEN VOLUME: 5 mL
MINIMUM VOLUME: 2 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 2-3 days
REFERENCE RANGE: 18.5 - 28.5 U/g of hemoglobin
OTHER NAMES: G-1-PU (Galactose-1-Phosphate Uridyltransferase);
Galactose-1-Phosphate Uridyltransferase; GALT
(Galactose-1-Phosphate Uridyltransferase)
METHODOLOGY: Ultraviolet, Kinetic
CLINICAL USE: Aid in diagnosis of galactosemia
CPT: 82775
[GANCIC] Ganciclovir Level
SPECIMEN REQUIRED: Frozen serum or plasma
TUBE OR CONTAINER: Red or Lavender (EDTA)
SPECIAL HANDLING: Do NOT collect specimen in gel barrier tube
SPECIMEN VOLUME: 2 mL
MINIMUM VOLUME: 1 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 6-8 days
CLINICAL USE: Therapeutic drug monitoring
CPT: 80299
[GANRES] GANCICLOVIR RESISTANCE
SPECIMEN REQUIRED: Actively growing isolate at room temperature
TUBE OR CONTAINER: Media tube
TEST AVAILABILITY: Daily
METHODOLOGY: Plaque reduction assay
CLINICAL USE: Measures the extent to which various
concentrations of Ganciclovir inhibit the growth
of virus in cell culture
CPT: 87252; 87253