Yes, Heparin is the indicated anticoagulant for IV administration.
***They are still looking for the source of the clots***
Does he have diabetes? That can complicate things. Also, any other vaccines or new meds recently?
No diabetes that we know of. He has his BS tested at his doctor’s office but they also let him drive home with an oxygen level of 84 two weeks ago. No vax of any kind or new meds.