Printable Test Catalog - OU Medicine

METHODOLOGY: Electrochemiluminescence Immunoassay (ECLIA)
CLINICAL USE: Work up women with infertility, amenorrhea, or
hirsutism, to identify the source of excessive
androgen; aid in the evaluation of androgen
excess (hirsutism and/or virilization)
CPT: 82627
[DHEAU] Urine Dehydroepiandrosterone (DHEA)
SPECIMEN REQUIRED: Frozen urine aliquot (24-hour or random)
TUBE OR CONTAINER: Plastic urine container
SPECIMEN VOLUME: 5 mL
MINIMUM VOLUME: 1 mL
TEST AVAILABILITY: Daily
METHODOLOGY: Radioimmunoassay (RIA) or GC/MS
CPT: 82626
[DHPR] Dihydropteridine Reductase Deficien
SPECIMEN REQUIRED: PKU card or filter paper
TUBE OR CONTAINER: PKU card or Filter paper with blood spot
TEST AVAILABILITY: Daily
TURNAROUND TIME: 2 weeks
REFERENCE RANGE: 0.8 - 3.9 nmol/min/mg Hgb
CPT: 82657
[DHT] Dihydrotestosterone
SPECIMEN REQUIRED: Frozen serum (preferred) or plasma
TUBE OR CONTAINER: Red, Gold, Lavender (EDTA) or Green (heparin)
SPECIAL HANDLING: Serum must be separated within 1 hour of
collection
SPECIMEN VOLUME: 1 mL
MINIMUM VOLUME: 0.5 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 3-8 days
REFERENCE RANGE: Age specific
OTHER NAMES: Androstaner-3-one; 17-(Beta); DHT; Hydroxy-5 Alpha
METHODOLOGY: Radioimmunoassay (RIA) after solvent extraction
CPT: 82651
[DIAZ] DIAZEPAM (VALIUM)
SPECIMEN REQUIRED: Refrigerated serum or plasma
TUBE OR CONTAINER: Red, Dark Green (heparin) or Lavender (EDTA)
SPECIAL HANDLING: Do NOT collect in gel barrier tube
SPECIMEN VOLUME: 1 mL
MINIMUM VOLUME: 0.4 mL
TEST INCLUDES: Diazepam and its metabolite-Nordiazepam
TEST AVAILABILITY: Daily
REFERENCE RANGE: Therapeutic: Diazepam+Nordiazepam: 0.1-2.5 g/mL
Potentially toxic: >5.0 g/mL
OTHER NAMES: Valium
METHODOLOGY: High-pressure liquid chromatography (HPLC)