Testosterone Total Adult Male (TST)

Department: Chemistry
Test Synonym(s): LAB124, TST
CPT Codes: 84403
Methodology: Chemiluminescent Microparticle Immunoassay (CMIA)
Reference Range: Click here for TST Reference Ranges.
Tube Type: Gold top
Specimen: Serum
Alternate Specimen: Red top
Pediatric Requirements: 2 Gold microtainers
Volume: 1 mL serum
Minimum Volume: 1 Gold top (Pediatric = 2 Gold microtainers)
Temperature: Separate within one hour and store at 2-8C until delivery
Stability: Room temperature: 8 hours, Refrigerated: 7 days, Frozen: 7 days
Reasons for Rejection: Hemolysis; improper collection
Days Performed: Daily
Times Performed: Continuous
TAT: STAT: 1 hour; ROUTINE: 2 hours after receiving in lab

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