Hi retro
having a good time in hospital I hear
Slaney who dwells mainly in crosswords hopefully will give a definite answer.
Altho it sounded like pharmocological overkill, the two are given together
http://www.mdpi.com/1424-8247/5/3/279/htm
whether or not it is appropriate for you is a decisiion for your doctors tomorrow and it is unlikely you will bleed to death in between
sounded from your post op course that it was pretty obvious that you had had a cardiac event ( went into heart failure post op and you were nt in heart failure previously ) so I would go with the flow quite honestly - you are in good hands at st G's