If you are an older person who your primary doctor will order PSA testing, you probably will notice that the doctor compares your recent PSA scores with your previous PSA testing scores. This is call PSA Velocity. Usually, very high PSA scores coupled with high PSA Velocity (meaning there is a significant increase in PSA levels as compared with previous levels) specially coupled with abnormal digital examination will result in sending you to a specialist. IMO, these tests should be used similarly as with cholesterol testing. High cholesterol test results do not mean your heart is bad and in need of operation or transplant. High cholesterol indicates that the risk of heart and stroke problems is increased. In the same way by getting multiple RECAF (and the like as there are other markers) to build a profile over the years as a person reaches middle age (or if people have family history of early cancers like early breast cancers,) an increase in RECAF "Velocity" may indicate fast growth of cells. As Moro said in his paper, cancer is very hard to detect by the medical profession. Many times, cancer is detected in late stages, which become difficult to impossible to treat. If the velocity of increase of marker(s) is high, this rapid increase usually implies rapid cell growth. Rapid cell growth in a mature person is unusual and probably cancerous. Very high single measurement of marker concentration is most likely bad, specially coupled with other observations like weight lost, pain, unusual organ function, and poor general appearance. Because of malpractice and run away costs, the medical establishment is scared into inaction. However, the common people are not stupid, and they will want easy to use and cheap testing once they learn that doctors are not really good at detecting cancers, until usually it is too late.
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