<prompt> True about prostate specific antigen except:Normal level is 10-14 ngmLIt my elevated in BPH and Ca ProstateIt is produced by prostateIt is a glycoprotein  <response>: Ans. a Normal level is 10-14ngmL.Ref: Campbell Urology 11th Edition, Page 2418 Normal serum concentration in men aged 50 to 80 years without prostatic disease range from 1to4ngml1. 