Printable Test Catalog - OU Medicine

SPECIMEN REQUIRED: Refrigerated or frozen serum
TUBE OR CONTAINER: Gold or Red
SPECIAL HANDLING: Specimen can be maintained at room
temperature for 3 hours prior to analysis.
Specimen stability: 7 days - refrigerated
2 months - frozen
SPECIMEN VOLUME: 1 mL
MINIMUM VOLUME: 0.5 mL
TEST AVAILABILITY: Monday-Friday
TURNAROUND TIME: 1-4 days
REFERENCE RANGE: Age specific
METHODOLOGY: Chemiluminescence
CLINICAL USE: Indicator of LH secretion and Leydig cell
function; evaluate gonadal and adrenal function;
aid in diagnosis of hypogonadism, hypopituitarism,
Klinefelter syndrome, and impotence (low values)
in males, and hirsutism, anovulation, amenorrhea,
and virilization in females
CPT: 84403
[TESTBIOAVAIL] TESTOSTERONE-BIOAVAILABLE
SPECIMEN REQUIRED: Frozen serum
TUBE OR CONTAINER: Red or Gold
SPECIAL HANDLING: Separate within 1 hour of collection
SPECIMEN VOLUME: 2 mL
MINIMUM VOLUME: 0.6 mL (this does not allow for repeat testing)
TEST INCLUDES: Total and Bioavailable testosterone; % Bioavailable
testosterone; Sex hormone binding globulin
(SHBG)
TEST AVAILABILITY: Daily
TURNAROUND TIME: 3-6 days
OTHER NAMES: Free and Albumin-Bound Testosterone; Testosterone,
Free and Weakly Bound
METHODOLOGY: HPLC Tandem Mass Spectrometry, Amonium sulfate
precipitation of SHBG bound fraction, Binding
Capacity
CPT: 84402; 84403; 84270
[TESTFR] TESTOSTERONE FREE AND TOTAL
SPECIMEN REQUIRED: Refrigerated or frozen serum
TUBE OR CONTAINER: Gold or Red
SPECIAL HANDLING: Specimen can be maintained at room
temperature for 3 hours prior to analysis.
Specimen stability: 7 days - refrigerated
2 months - frozen
SPECIMEN VOLUME: 2 mL
MINIMUM VOLUME: 0.7 mL
TEST INCLUDES: Total testosterone and Free (direct) testosterone
TEST AVAILABILITY: Daily
TURNAROUND TIME: 2-3 days
REFERENCE RANGE: Age specific