Understanding a Low PSA Result After Prostate Surgery: What Does It Mean?

Question
My husband had prostate surgery and the prostate was completely removed.  He had his first psa test since surgery in Jan and it came back .02 - the Dr is sending him to radiology.  WhY???  What is the .o2 actually telling the Dr?

Thanks

Answer
Hi Sharon,

The website below provides additional information on the PSA test and the interpretation of the results.

http://www.labtestsonline.org.uk/understanding/analytes/psa/test.html

This site provides some additional information on the diagnositc evaluation of the PSA results and what the results might mean to the physician.

It may be that your husband's doctor is following the procedures recommended below as a precaution.

http://www.medscape.com/viewarticle/452272

"Is there anything else I should know?
Prostate biopsy or operations on the prostate will significantly elevate PSA levels. The blood test should be done before surgery or six weeks after.

Ejaculation and vigorous physical activity affecting the prostate, such as bicycle riding, may cause a temporary rise in PSA levels. A blood sample should be taken either before a digital rectal examination as pressure on the gland during the examination will lead to an increase in the PSA value or alternatively after at least a week after the examination Excessive doses of some chemotherapeutic drugs, such as cyclophosphamide and methotrexate, may increase or decrease PSA levels."

PSA values can increase with a patient's age and in conjunction with the administration of specific prescription drugs or their diet.

You may want to confirm with your husband's doctor if he is sending him to radiology as a precaution per the recommended post surgical procedures described above or if the PSA value in your husband's specific situation caused the doctor to decide to refer him to radiology for further diagnostic evaluation.

Thanks,
Elizabeth