Testosterone, Total-44

Test info

  
Testosterone, Total
  
44
  
84403.0
  
TST

Specimen

  

Samples should not be taken from patients receiving therapy with high biotin doses (i.e., > 5 mg/day) until at least 8 hours following the last biotin administration

  
Serum
  
1.0 mL
  
0.5 mL
  

Immediately following collection, mix sample by gently inverting 5 times

  

Gold:

  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection

Red:

  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection
  

Gold serum separator (SST) tube

or

False bottom plasma/serum transport vial/tube (AHL)

  
Lithium heparin (Li hep) plasma
  
  

Immediately after collection, mix tube thoroughly by gentle inversion, 8 - 10 times, to prevent clotting

  
  1. Spin
  

Lt green plasma separator (PST)

  

Refrigerated (preferred) - 14 days

Ambient - 5 days

Frozen - 6 months

 

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis 
  • Improper anticoagulant or ratio
  • Delay in transport
  • Improper storage temperature affecting results
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)

Performance

  
AHL - Chemistry: C
  
Daily
  
1 - 2 days
  

Electrochemiluminescence immunoassay (ECLIA)

Clinical and Interpretive info

  

Male:

20 yrs - 50 yrs: 249 - 836 ng/dl
>50 yrs: 193 - 740 ng/dl

Female:

20 yrs -  50 yrs: 8.40 - 48.1 ng/dl
>50 yrs: 2.90 - 40.8 ng/dl

Billing

  
84403

Tracking

  
11/30/2001
  
08/01/2023
  
01/12/2024