??? Please clarify. The question makes no sense.

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2 Doctors Approved

Dr. Alan Ali, University of Arkansas for Medical Sciences/UAMS College of Medicine Answered Aug. 13, 2013

29 years experience in Psychiatry

PDA? What is pda?. Please clarify.

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Dr. Alvin Lin, Wake Forest University School of Medicine Answered Jun. 29, 2012

27 years experience in Internal Medicine - Geriatrics

Depends! I suspect you're referring to psa (prostate specific antigen) rather than pda. We typically consider levels <4 to be normal but we also know that normal varies w/age (higher being accepted w/aging). Psa also increases w/infection. Steady increases in psa (even if <4) warrant further evaluation, eg biopsy. But a steady value or an initial value <4 probably can be watched. Talk w/your family doc.

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