So the Glomerular Filtration Rate test was done, a boring few hours at the hospital...
1. Injection of radioactive substance (smaller dose than PET scan so no need for the metal syringe the time)
2. Return at one hour intervals for blood to be taken via cannula - two vials each time, with the last two being at half hour intervals
No big deal, just a bit boring, another day off work. Take a book / iPad / walk.
Next day…