How do you remove bone marrow from the bloodstream

Question

How do you remove bone marrow from the bloodstream

Answer 1

Is it leaking from a break in a bone? It happened on House and setting the break was supposed to stop it and let the body heal itself. (The episode where he had to diagnose a woman in Antarctica by video).

Well, are you asking about a medical condition where marrow has leaked into the blood, or harvesting it for a transplant, or what?

Answer 2

Bone marrow is in the center of your bones. How would it get into your bloodstream?  

Answer 3

You dont.  Bone marrow is in the hip bone.  When marrow is harvested from a donor or for a bone marrow biopsy, it is taken using large needles into the hip bone.

There are also hematopoetic stem cells in the peripheral blood as well.  They can be used in stem cell transplants (medically accurate term for a bone marrow transplant) instead of actual marrow.  They are harvested using aphersis, much the same process as if you were to sell plasma, or even some red cross donations.