Test Catalog

Test ID: TTFB    
Testosterone, Total, Bioavailable, and Free, Serum

Specimen Type Describes the specimen type validated for testing

Serum Red

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

Specimen Volume: 3.5 mL

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

2 mL

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

Hemolysis

Mild OK; Gross reject

Lipemia

Mild reject; Gross reject

Icterus

Mild OK; Gross reject

Other

Serum Gel

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 TypeTemperatureTime
Serum RedRefrigerated (preferred)14 days
 Frozen 60 days