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@marlow2
This is standard procedure at UFPTI. When you do simulation (this procedure sets up a specialized bed for each patient and the parameters techs will use during actual treatments) e there they have you drink water 30 minutes prior to procedure. Then do low dose xray to monitor your bladder position with water and adjust drinking more up or down.
This is done to help move bladder away from prostrate and lesson the amount of radiation that bladder receives. They also look at Space/Oar to see it has moved the rectum down and away. If not they will use a baloon to do that before procedures.
Everyone is different and how they absorb water and time needed to do it, along with size of bladder ect. My plan revealed I needed to drink 12 oz of water 30 minutes prior to treatments.
Thus I would urinate prior to drinking the water and after treatment urinate again regardless of urged to do so as had a 45 minute drive home. This work out for me without any issues with urnination urges from drinking all the water and the increases in urnination and urges when doing radiation treatments.
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Thanks for all the comments. My husband found out yesterday that the trial that he volunteered to do was set for him. 50% would have no water administered during radiation and 50% would have water administered. He is in the water category. I'm actually relieved because they don't know yet how patients will do without water which is the normal procedure. He also has an appointment for the Decipher test on 3-7-24. His paceror surgery was moved up to 2-29-24 and CT and MRI scans on 3-1-24. I hope that he gets relief from the shingles that he has had for 3 weeks. The bumps are drying up but he is still in a lot of pain.