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She was the woman's physician at the time, they have a "doctor-patient" relationship. It seems that you think that your judgement regarding this procedure should supercede this professional interaction.
You seem very vested in this issue of dictating other people's approach to making medical decisions. If the chastity approach doesn't work for you, try this. When your PSA is found to be elevated -- try thinking about your next step for awhile and pretend that the law dictated that since you were incapable of understanding what it meant for you to have your prostate biopsied you had to sit tight, say for a month or two or so. Hopefully it won't matter, maybe it won't metastasize or grow to a point that a more radical procedure will be required. Who knows, but at least the government made sure you didn't do anything rash. And that's the point, right?