Hey hon, I'd have a word with your GP and ask him what steps you'll need to take so that your hospital record is strictly non-negotiable as pro-transfusions. I'd almost forgotten all about this since fading but when recently in the ER for my son (minor fracture), they checked if all of my details are up to date. They asked about address, phone number... and then religion.
"Jehovah's Witness?" the registrar at the front desk asked.
"NO!" I practically exploded. "Please take that off my son's files. He is open to transfusions should he ever require one. Please mark us with no particular religion."
And just like that, the records were amended.
Good luck!