Free PSA.

[landcrab]

My latest psa is 0.03 after almost 3 years on Xtandi. However my free psa is 0.33.

What does this mean.

[Justfor_]

I have read some papers claiming a reversal of the %FPSA marker meaning. That is, at diagnosis a higher percentage of the free to total PSA ratio indicates a lesser probability for cancer, hence, higher is better. After primary treatment, with a cut off value of 15% (some state lower values) the meaning is reversed to less is better, claiming that a higher percentage is indicative of a more aggressive PCa. To my understanding, though not explicitly mentioned, the latter apply under no additional treatment after the primary one. In your case, the ADT renders the %FPSA marker incomprehensible, i.e. 0.33/0.03 =1100%! Anything above 100% defeats any logical comprehension IMO.

[LearnAll]

This may be a lab error or a misinterpretation due to different units used such as nmol/dl vs ng/ml etc. I will repeat the test.

[Tall_Allen]

It means you should stop getting free PSA tests. It has no meaning after your original diagnosis.

[Hidden]

It means your doing great! Ignore the free psa tests and focus on the .003. Don't stress yourself.

[j-o-h-n]

No such thing as a free lunch and free psa test for you..............

Good Luck,Good Health and Good Humor.

j-o-h-n Friday 10/02/2020 11:43 PM DST