Ferdie, I have had two vials of blood taken at the same time from the same needle, sent to the same lab at the same time and they came back with a difference of 0.01. The 0.36 sounds like a mistake and a 10 fold increase sounds typical of a lab error. My post treatment PSA has fluctuated but over a period of time the trend was upwards. My oncologist says the machines are reliable it is the patients blood that isn't.
Good that your team are being vigilant but hopefully you can relax and await the next test, you could use the anxiety card and get the next test done a bit quicker.
Remember 70 percent of surgery cases are successful.
Thanks Chris