Prostatic specific antigen, total & free-4765

Test info

  
Prostatic specific antigen, total & free
  
4765
  
LAB4765
  
PST
  
PSA, total & free
Prostatic specific antigen

Specimen

  
Serum
  
  
2.0 mL
  
0.4 mL
  
  • It is recommended to obtain specimens for PSA testing prior to procedures involving manipulation of the prostate.
  • Immediatley following collection, mix sample by inverting 5 times
  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  

Gold serum separator (SST) tube

  

Red serum vial/tube, 5 mL

Red serum vial/tube, 10 mL

Red/Grey marble top serum separator (SST) vial/tube, 8.5 mL

  

Red/Grey marble top:

Immediatley following collection, mix sample by inverting 5 times

  

Red/grey:

  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
  

Red/Grey marble top serum separator (SST) tube

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

  

Refrigerated (preferred) - 5 days

Frozen - 6 months

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis (some procedures)
  • 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
  
Tu, Th, Sa
  
2 - 3 days
  

Chemiluminescent Microparticle Immunoassay (CMIA)

Clinical and Interpretive info

  

Total PSA: < 4.0 ng/mL

  

When the total PSA is <4.0 or >10.0, the % Free PSA will not be calculated.  The % Free PSA will be reported as "Not Specified"

In patients with total PSA concentrations between 4.0 and 10.0 ng/mL, the Prostate Health Index (PHI) may aid in distinguishing prostate cancer from benign prostate conditions.

Billing

  
84154
84153
  
Yes
  

Tracking

  
11/30/2001
  
10/02/2018
  
02/17/2020