Test Code TESTOST Testosterone, Total, Plasma or Serum
Performing Laboratory
North Ottawa Community Hospital
Specimen Requirements
Submit only 1 of the following specimens:
Preferred:
Specimen Type: Plasma
Container/Tube: Mint-green top (lithium heparin gel)
Specimen Volume: 1 mL
Collection Instruction:
1. Label specimen as plasma.
2. Avoid hemolysis and lipemia.
Acceptable:
Specimen Type: Serum
Container/Tube: Serum gel or red top
Specimen Volume: 1 mL
Collection Instruction:
1. Label specimen as serum.
2. Avoid hemolysis and lipemia.
Reference Values
Males: 245-1,600 ng/dL
Females: 0.00-81.0 ng/dL
Day(s) Test Set Up
Monday, Wednesday, Friday
Methodology
Competitive Immunoassay
Specimen Transport Temperature
Ambient
Test Classification and CPT Coding
84403
Specimen Storage and Stability
Specimen Type | Temperature | Time |
Serum/Plasma | Room Temp | < 4 hours |
Refrigerated (primary) | <7 days | |
Frozen | <4 weeks |