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Test Code LAB171 Prostate Specific Antigen, Total and Free

Performing Lab

Arnot Ogden Medical Center

Ordering Recommendations

As an aid in distinguishing prostate cancer from benign prostatic conditions in men aged 50 years and older with total PSA between 4.0 and 10.0 ng/mL with digital rectal examination findings that are not suspicious for cancer

In individuals with a total prostate-specific antigen (PSA) concentration between 4.0 and 10.0 ng/mL, free PSA:total PSA ratio could help determine the relative risk of prostate cancer. The lower the free PSA:total PSA ratio, the higher the risk of prostate cancer.

 

Collect

Serum

Collection Device

Gold Top Tube

Specimen Volume

5 mL

Stability (from collection to initiation)

Refrigerated

 24 Hours
Frozen 5 Months

 

Storage/Transport Temperature

Refrigerated or Frozen

Minimum Requirements

0.5 mL

Methodology

Immunoenzymatic

Start Date

9/13/2017

Last Review Date

10/25/25

ES

Specimen Handling

Refrigerated or Frozen

Collection Instructions

Sample should be collected prior to prostatic manipulation.

Remarks

TURN AROUND TIME

STAT

 1 Hour
Routine 8 Hours