TEST CATALOG ORDERING & RESULTS SPECIMEN HANDLING CUSTOMER SERVICE EDUCATION & INSIGHTS
Test Catalog

Test ID: TTBS    
Testosterone, Total and Bioavailable, Serum

Specimen Type Describes the specimen type validated for testing

Serum Red

Advisory Information

This is the preferred second-level test for suspected increases or decreases in physiologically active testosterone.

Necessary Information

Patient's age and sex are required.

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Container/Tube: Red top (serum gel/SST are not acceptable)

Specimen Volume: 1 mL

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

0.6 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTimeSpecial Container
Serum RedRefrigerated (preferred)14 days
 Frozen 60 days