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Test Code PSA PROSTATE SPECIFIC ANTIGEN

Important Note

24 hours before this blood test: Do not take any supplements containing biotin or Vitamin B7 which are commonly found in hair, skin, and nail supplements, and multi-vitamins.

Sufficient Biotin concentrations in serum can lead to falsely decreased results.

Methodology

Chemiluminescent Immunoassay - OrthoClinical Diagnostics Vitros 7600 XT

Note: If a PSA screen is desired in a patient with a previous history of prostate cancer, order PSAD “Prostate-Specific Antigen (PSA) Diagnostic, Plasma or Serum.”

Useful as an aid in the detection of prostate cancer.

Specimen Requirements

 

Submit only 1 of the following specimens:

 

Preferred:

Serum

Serum Gel Tube

Container/Tube: Serum gel tube(s)
Specimen Volume: 1 mL (minimum volume: 0.5 mL) of serum-Hemolyzed specimen is not acceptable.

Collection Instructions: Specimen should be drawn before patient undergoes prostate manipulation procedures. Spin down within 4 hours of draw.

Note: Label specimen appropriately (serum).

 

Alternate:

Serum

Plain, Red-Top Tube

Container/Tube: Plain, red-top tube(s)
Specimen Volume: 1 mL (minimum volume: 0.5 mL) of serum-Hemolyzed specimen is not acceptable.

Collection Instructions: Specimen should be drawn before patient undergoes prostate manipulation procedures. Spin down within 4 hours of draw.

Note: Label specimen appropriately (serum).

 

Plasma

Container/Tube: Green-top (lithium heparin) tube(s)

Specimen Volume: 1 mL (minimum volume: 0.5 mL) of plasma-Hemolyzed specimen is not acceptable.

Collection Instructions: Specimen should be drawn before patient undergoes prostate manipulation procedures. Spin down within 4 hours of draw.

Note: Label specimen appropriately (plasma).

Day(s) Test Set Up

Monday through Friday

Reference Values

Males: <4 ng/mL

Tumor markers are not specific for malignancy, and values may vary by method.

Performing Laboratory

Logan Health Medical Center-Chemistry

Test Classification and CPT Coding

84153

Specimen Transport Temperature

Refrigerate