Is it possible that we give blood transfusion through an arterial femoral line?

Possible, but why?: It is not commonly done to put fluids into an arterial line, that usually is used for pressure monitoring and to obtain blood for testing. Could be done on a pump in theory. Usually would use a peripheral or central venous line to transfuse.

Bad idea.: It can be done but it is not a good idea. The risk albeit small is primarily embolism down the leg. Blood should be given via an intravenous approach.

Could be done: Transfusions through an artery can be done, but this is not preferred and can be associated with ischaemic changes in the vessel distally. Prefer venous transfusions.