Test Directory

Test Code
UPPSA
Test Name
Prostate Specific Antigen, Ultrasensitive
Expected Turnaround Time
4 - 7 days
Clinical Utility

For post-prostatectomy patients. The lower limit of accurate quantification for this assay is 0.02 ng/mL. PSA values less than 0.02 ng/mL cannot be accurately measured and will be reported as less than 0.02 ng/mL. Specimens with PSA levels below the lower limit of accurate quantification should be considered as negative. In patients with a negative result for post-prostatectomy PSA, serial monitoring of PSA levels at regular intervals, along with physical examinations and other tests, may help to detect recurrent prostate cancer.

Specimen and Container Info

Specimen Type: Serum

  

Preferred Collection Container: Red Top, Plain

Alternate Collection Container: Gold Top, Serum Separator

Desired Specimen Volume: 1 mL

Collection Instructions
  1. Collect a red top, plain tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
Patient Preparation

 Draw before rectal examination or biopsy procedure.

Transport Instructions

Transport to the laboratory frozen. 

Stability Requirements

Room Temperature

4 days

Refrigerated

10 days

Frozen

1 year

Methodology
Immunochemiluminometric Assay (Icma)
Reference Intervals

See patient report.

Alternate Names
  • PSA, Post Prostatectomy
  • Ultra sensitive PSA
  • Ultrasensitive PSA (Post-Pros)
Reference Lab
Quest Diagnostics Nichols Institute
Testing Schedule
Routine, 3 times per week