Printable Test Catalog - OU Medicine

MINIMUM VOLUME: 0.5 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 3-5 days
OTHER NAMES: Lyrica
METHODOLOGY: Liquid Chromatography/Tandem Mass Spectrometry
(LC/MS/MS)
CLINICAL USE: Monitor therapeutic drug level
CPT: 80299
[PREGNEN] Pregnenolone
SPECIMEN REQUIRED: Frozen serum (preferred) or plasma
TUBE OR CONTAINER: Red, Gold, Lavender (EDTA) or Green (heparin)
SPECIAL HANDLING: Separate within 1 hour of collection
SPECIMEN VOLUME: 2.5 mL
MINIMUM VOLUME: 1.1 mL (this volume does not allow for repeat
testing)
TEST AVAILABILITY: Daily
TURNAROUND TIME: 3-7 days
REFERENCE RANGE: Age-specific
METHODOLOGY: Radioimmunoassay (RIA) after column chromatography
CPT: 84140
[PREGTM] PREGNANETRIOL TIMED URINE
SPECIMEN REQUIRED: Frozen aliquot (24 hour urine collection)
TUBE OR CONTAINER: Plastic urine container
SPECIAL HANDLING: Aliquot a well-mixed 24-hour urine; add boric
acid (0.5 gm/100 mL) as preservative
SPECIMEN VOLUME: 50 mL
MINIMUM VOLUME: 10 mL
TEST INCLUDES: Pregnanetriol; Creatinine and ratio
TEST AVAILABILITY: Daily
TURNAROUND TIME: 6-36 days
REFERENCE RANGE: Age specific
METHODOLOGY: Gas chromatography (GC), Colorimetric
CLINICAL USE: Pregnanetriol is increased in congenital adrenal
hyperplasia, in the most common form of the
adrenogenital syndrome, 21-hydroxylase deficiency
CPT: 82570, 84138
[PREKAL] Prekallikrein Factor Activity
SPECIMEN REQUIRED: Frozen plasma
TUBE OR CONTAINER: Blue (Citrate)
SPECIMEN VOLUME: 2 mL
MINIMUM VOLUME: 1 ml
TEST AVAILABILITY: Daily
TURNAROUND TIME: 3-8 days
REFERENCE RANGE: 65-135 %
OTHER NAMES: Fletcher Factor
METHODOLOGY: Clotting time assay
CPT: 85292