Lady Rose, probably a few minutes of tests and a lot of sitting around waiting for results. Nothing like getting the girls out to have them squashed flat as a pancake against a cold plate!
When I go to the melanoma clinic it is an all day affair - interview, tests, measuring, poking and prodding, break for lunch while all the docs confer, then another round of inspections and finally decisions on whether any further treatment is needed. I feel like a lab specimen! Especially sitting there having them pore over you scalp to toe, reminds me of the monkeys at the zoo when they groom each other!
Good Luck, hope everything is OK.