Prostate-specific Antigen (PSA) CPT: 84153
Synonyms
PSA, Serum
Special Instructions
Expected Turnaround Time
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Specimen Requirements
Specimen
Serum
Volume
0.8 mL
Minimum Volume
0.3 mL (Note: This volume does not allow for repeat testing.)
Container
Red-top tube or gel-barrier tube
Collection
If a red-top tube is used, transfer separated serum to a plastic transport tube.
Storage Instructions
Maintain specimen at room temperature.
Stability Requirements
Patient Information
To screen men for prostate cancer, to help determine the necessity for a biopsy of the prostate, to monitor the effectiveness of treatment for prostate cancer, and/or to detect recurrence of prostate cancer.
When a man has symptoms suggestive of prostate cancer such as difficult, painful, and/or frequent urination; may also be ordered during and at regular intervals after prostate cancer treatment; in asymptomatic men, after a discussion with your healthcare provider about the benefits and harms of screening and you make an informed decision to undergo screening (For specific details, see prostate cancer screening for Adults and Adults 50 and Up).
A blood sample drawn from a vein in your arm.
Avoid ejaculation for 24 hours before sample collection as it has been associated with elevated PSA levels; the sample should also be collected prior to your health practitioner performing a digital rectal exam (DRE) and prior to (or several weeks after) a prostate biopsy.