If you are on treatment, particularly ADT, you want to know PSA and T.
Generally, the lower your T, the better your response. Long ago and far away less than 50 was the standard, only because that’s as low as they could measure. Now, less than 20, while on ADT for 18 months mine was <7.
I don’t know about your clinical history or status so not in a position to comment but after surgery, BCR, SRT, six cycles of taxotere, 25 more radiation treatments to the pelvic lymph nodes and 18 months of Lupron we stopped treatment and I have been off treatment since August 2018. T recovered to 135 after two months, 482 by six months.
I have no doubt I will go back on treatment at some point in the future, just not now!
Also, it doesn’t cost your oncologist anything to order the T test so stand your ground.
When making decisions it is important to have clinical data, T is part of that.