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The BBGuy Essentials Podcast has biweekly interviews with leaders, and “Ask BBGuy” Q&A’s.


Numerous teaching videos ranging from ten minutes to over an hour from Joe Chaffin.

BBGuy Blog

The BBGuy Essentials Blog contains monthly posts about news and educational items from Joe Chaffin.


Review questions covering multiple areas of blood banking and transfusion medicine (many questions currently under revision).


Blood Bank terminology can be confusing! Check the BBGuy Glossary for explanations and definitions.

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BBGE 027: NAIT with Dr. Brian Curtis

Dr. Brian Curtis from BloodCenter of Wisconsin joins Dr. Chaffin to discuss Neonatal Alloimmune Thrombocytopenia (NAIT). Neonatal alloimmune...
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BBGE 026: TTP Treatment with Dr. Jeff Winters

Dr. Jeff Winters from Mayo Clinic, Rochester, MN returns to discuss a true, honest-to-goodness blood bank treatment emergency, Thrombotic...
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BBGE 025: Intro to Therapeutic Apheresis with Dr. Jeff Winters

Dr. Jeff Winters from Mayo Clinic, Rochester, MN joins Dr. Chaffin to discuss the Essentials of Therapeutic Apheresis. It is very common for...
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BBGE 024: Dr. Will Savage on Allergic Reactions

Dr. Will Savage from Harvard University joins Dr. Chaffin to discuss Allergic Transfusion Reactions (ATRs). Allergic reactions have become pretty...
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BBGE 023: Dr. Jeff Carson on RBC Transfusion Guidelines

Dr. Jeff Carson from Rutgers Robert Wood Johnson Medical School joins Dr. Chaffin for a timely discussion of the recently published 2016 AABB RBC...
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My Five Favorite Interviews of 2016!

2016 marked a new beginning for the Blood Bank Guy website. Among other major changes, I debuted the "Blood Bank Guy Essentials Podcast" in April,...
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The Essentials: Granulocytes

If you’ve been anywhere near a transfusion service, or ordered blood components from one, you know that granulocyte products are special. Along with...
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So You Want to be a “G-Wiz?”

One of the most frequently asked questions I get at lectures and from hospital transfusion services goes something like this: "What the HECK (or...
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Help! I’ve Acquired a B!

Everyone hates ABO discrepancies! OK, I'll admit there are a few people out there that carry some sort of odd immunohematological nerd mutation that...
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Rhapsody in Rh! Explaining Rh Terminology

The Rh blood group system is spectacularly complex, while at the same time enormously important. Beginners trying to understand the system are often...
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