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TEST DESCRIPTION

TEST CODE

TSTFMS

CPT CODE

84403 ; 84270

EXPECTED TURNAROUND TIME

2-5 days 
(TAT is the interval starting when a specimen and order are received in the laboratory and ends with release of the test result.) In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary. In the event that reflex testing is performed TAT turnaround times can be extended.

TEST INCLUDES

Testosterone, Free, by LCMS

SYNONYMS

Bioavailable Testosterone, Free Testo F/Peds, Free Testosterone by LCMS, Females and Children, Free Testosterone, High Sensitivity, Hypogonadal Males, LCMS, Liquid Chromatography Mass Spectrometry, Pediatrics Hypogonadism

COLLECTION

SPECIMEN

Whole Blood

COLLECTION CONTAINERS

Gold top tube (SST)

COLLECTION AMOUNTS

Preferred: 5.0mL
Minimum: 1.0mL

REJECTION CRITERIA

Plasma, severely lipemic, contaminated, hemolyzed specimens and other body fluids are unacceptable.

PROCESSING

SPECIMEN PROCESSING INSTRUCTIONS

Allow specimen to clot 20-30 minutes, centrifuge, and IMMEDIATELY separate serum into transport tube. Contact with gel for > 2 hours should be avoided.

PROCESSING SPECIMENS

Serum

PROCESSED AMOUNTS

Preferred: 1.0mL
Minimum: 0.5mL

SHIPPING/TRANSPORT & STORAGE

STABILITIES/STORAGE

AMBIENT
REFRIGERATED
FROZEN

Not recommended
7 day(s)
6 month(s)

SHIPPING INSTRUCTIONS

Ship refrigerated