Would you use argatroban or citrate catheter lock in a patient with ESKD and HITT?  

I would use 4% citrate. I have no experience using argatroban as a catheter lock solution, but have significant experience using 4% citrate solution. For our inpatients, we only use 4% citrate solution (and have done so for many years). While I believe you can buy prefilled 4% citrate syringes comme...

Agree with using citrate. Personally, I've never used argatroban as a lock solution before.

I would use citrate because argatroban is very expensive and not more efficacious.