Thank you for the additional information.
There are several possible causes for a sudden tendency for easy bruising. Certainly, blood clots should be considered, so it is good that this has been excluded. There are a couple of systemic
conditions that can present as bruising, such as liver disease, disorders of clotting, or low platelets. The usual method for identification of such problems is by blood tests, such as a blood count, chemistry/liver profile, or tests of blood clotting. There is a good chance that these tests were done in the ER on those 3 vials of blood.
I ask about medicines because certain medicines can cause bruising as a side effect. You are not taking any of the medicines that commonly may cause bruising. However, Ritalin can cause bruising as a side effect and several of the medicines can cause bruising if they cause irritation of the liver, although this would have been checked with the blood work noted above.
The other common reason for bruising is from increased fragility of the skin. If there is no systemic cause of the bruising, then it is likely due to sin fragility, and this would be less of a concern.
Therefore, it would be appropriate to first determine what blood tests were done in the ER. If some of the above tests were not yet done, then that should be done.
If you have any further questions, please let me know.