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Caitlin Raymond: Anticoagulation and TPE: More Nuanced Than You Think!
Sep 25, 2025, 10:45

Caitlin Raymond: Anticoagulation and TPE: More Nuanced Than You Think!

Caitlin Raymond, a board-certified Clinical Pathologist and current Transfusion Medicine Fellow at the National Institutes of Health, shared on LinkedIn:

”Anticoagulation and TPE: More Nuanced Than You Think

When you see “anticoagulated patient” and “therapeutic plasma exchange (TPE)” in the same sentence, the reflex is clear: they’re going to bleed.

But that’s not always the case.

Over the last few years on service, I’ve learned that the reality is more complicated — and more interesting.

TPE doesn’t interact with all anticoagulants in the same way.

Some are cleared, some aren’t.

Some look scary on paper (hello, post-exchange INR bumps) but don’t consistently translate into bleeding at the bedside.

And antiplatelet agents? Not irrelevant — but not the whole story either.

In this new piece, I walk through:

  • Which anticoagulants are actually removed by TPE
  • When (and how) to adjust dosing
  • How citrate anticoagulation fits into the picture
  • What the reversal options look like
  • Why short courses are usually safe — and when bleeding risk does rise

The key takeaway: “anticoagulated” doesn’t automatically mean “unsafe.”

The art is knowing which drug, how often, and what else is going on with the patient.

If you’re running TPE, or just want a refresher on how meds and machines collide, I’d love for you to give it a read.”

Read the full post here.

Caitlin Raymond: Anticoagulation and TPE: More Nuanced Than You Think!

Find more on coagulation disorders featured in Hemostasis Today.