Prostatic specific antigen, total & free

Alphabetical Test listing

Prostatic specific antigen, total & free-4765

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

  
  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)
  
AHL - Chemistry: C
  
Tu, Th, Sa
  
2 - 3 days
  

Chemiluminescent Microparticle Immunoassay (CMIA)

  

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.

  
84154
84153
  
Yes
  
  
11/30/2001
  
10/02/2018
  
02/17/2020