Hi Sue,
Thinking about your cut finger....I was wondering if you could go online and get such a beast as a full arm rubber glove like the vets use when exploring the rear end of a cow! Mind you, you might want to be careful what you put in to the search engine
! I'm glad you have mentioned about cuts and fish water as I am always taking lumps out of my hands, just today I have managed to slice 1/2" out of my finger on a paint can and I already have various cuts to my other hand...they are extremely sore. Like you, I have a problem with my blood and have to take anticoagulants after having a pulmonary embolism last year closely followed by a bout of pneumonia. Fortunately, because I live in France I was taken care of very well. I had 5 days in intensive care followed by 3 days on a normal ward. I say normal, but it differed from the UK experiences I have had by virtue of no wards are bigger than twin rooms, (I had a single) all results, blood, x-rays, cat scans etc are back the same day, sometimes within the hour. Oh, and of course, you get wine with your meal! Anyway, I shall be sure to be careful when dealing with water changes when I have fish.
Hope your finger is feeling better today.
P.S. That's a good tip from Flatdog, the hospitals use a superglue! Though actually, I prefer ColinB's suggestions!!!