PSA

Insurance blood testing for most, if not all, insurers includes a PSA (prostate specific antigen) test in males above a certain age range. Unlike testing for diabetes or kidney or liver disease, however, the PSA test is more controversial. It allows insurers to price more aggressively with a favorable result and requires more investigation with a questionable one.

http://www.brokerworldmag.com/articles/articles.php?articleid=3728