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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