Hi Leonie
So sorry to hear about your husband's misfortune seems so unfair with everything that is going on your treatment , flooding etc. If he is having clexane it works quite quickly on the clotting I was given some when I had my mastectomy and was responsible for my 3rd surgery for a haematoma. The blood tests continue until the warfarin has kicked in and his INR is in a therapeutic range then they will ease off.
Good luck with everything. If you are staying in Brisbane I am only 25kms away if you need a coffee break away from the hospital.
Sarah x