Concerned Daughter - Need Advice (Possible castrate resistant disease)

Good afternoon! I have been monitoring this forum for quite a while now and have found the advice invaluable. Please see my dad's case below, I would love any and all feedback as I'm receiving mixed information.

*Dx @ 60, PSA 24.4, Gleason 5+4 upon biopsy in 4/2016, neg. bone/CT scans
*7/2016 - RALP (had to wait to complete quadruple-bypass), neg. LN, neg. margins, neg. SVI, +PNI, +LVI, "downgraded" to 4+4 gleason
*8/18/16 : 1st post-op PSA = 8.39
*9/21/16: 2nd post-op PSA = 18.87
*Firmagon initiated 9/26/16, on continuous Lupron since (PSA results = 2.2, 0.06, 0.03, 0.02) and then began to rise 12/2017 to 0.11
*IMRT initiated 2/2-end of March
*PSA early March was .41 (in the middle of Radiation tx)
*1st PSA post Radiation = .47 (blood work completed at Emory/different lab which usually runs higher than his Urologist's office)


-I spoke to the ARNP at Emory today who advised this is normal for his PSA to increase during/immediately after radiation. I reiterated he is on ADT and had a prostatectomy, shouldn't the PSA be undetectable? She explained that it should settle eventually.

This answer isn't sufficient for me and seems "off". I have been trying to communicate directly with his physician but haven't been able to do so.

So.. my questions are .. does this seem correct? Also, if it's not, what are his next steps? Emory just wants his PSA re-tested in 3 months. It seems risky to wait that long if he's castrate-resistant.

Any help is greatly appreciated! I apologize for any incomplete information.

-Nicole

Welcome to HW.

What TA said. You need some time for the PSA to settle. RT is a slow treatment plan.