Re: PSA score
PSA results can be influenced by many factors. Surely sex hours before a test it will give false alarms. However to better diagnose your prostate health your PSA past history is crucial. One single test indicating 1.40 is considered normal (0.0 to 4.0 = normal), unless you have any other symptom.
A friend of mine was diagnosed with prostate cancer when he got successive increases in PSA (reaching a value of 2.60), which prompted the need of a biopsy, confirming the existence of cancer. That is a good example for a case of a PSA within the normal limits, but signaling cancer.
Wishing you the best,