PSA with Reflex to Free PSA

Test Code: TD_CH194

CPT Code(s): 84153

$26

Test Details

Alternative Name(s)

Prostate specific antigen, reflex to Free PSA

Test Includes

Total PSA. Will reflex to Free PSA when result is >4 ng/mL

Methodology

Abbott Alinity chemiluminescent microparticle immunoassay (CMIA)

Rejection Criteria

Gross hemolysis

Reference Range(s)

<=4.00 ng/mL
Will reflex to free PSA when result is: >4.00 ng/mL.

Specimen Requirements

Preferred Specimen

Serum Separator Tube

Minimum Volume

1 mL serum

Sample Stability

72 hours refrigerated

Transport Temperature

Refrigerated

Collection Instructions

Allow SST to clot in an upright position for
at least 30 minutes, then centrifuge sample and refrigerate. Note: samples should be collected prior to such prostate
manipulations as digital rectal exam (dre), prostate
massage, transrectal ultrasound (trus) and prostate biopsy.

Alternative Specimen

1 mL serum from a plain red top tube. Allow specimen to clot completely for 20 to 30 minutes prior to centrifugation. Centrifuge at 1,600 RCF for 10 minutes. Using a transfer pipette remove the serum and transfer to a transfer tube and clearly label as serum from a plain red top tube