Anemia and the CBC

In honor of Dr. @AmeetRKini's anemia lecture today, I thought I'd share a little #hemebytes #micromeded #twitterhomework #tweetorial

Let's first look at the CBC RBC indices!

 
Complete Blood Count RBC Indices
 

Why are immature RBCs more polychromatic? Well, here is a review of RBC maturation. As you can see, after the RBC loses its nucleus, the cytoplasm remains more basophilic due to higher levels of ribosomal RNA which looks more purple on the Giemsa stain —>

Now, there is another little index on the CBC that no one really talks about (probably because there isn't a ton of data on how to properly use it). Here is a figure on the mean platelet volume. The MPV is really most useful in thrombocytopenia... the rest is to be determined

Interpreting the MPV
Screen Shot 2021-10-14 at 2.59.06 PM.png

And now for my pride and joy. I always find that there are a bunch of figures that have bits and pieces of what I want in a normocytic anemia algorithm but not all in one place, so I made this little guy to help guide the diagnosis of normocytic anemia.

 
Normocytic Anemia Algorithm and Differential
 

Don't forget about the iron transport and metabolism #micromeded #flashback to the "Battle Over Iron" post (access that post here)

Hopefully, I will be able to make more posts about microcytic and macrocytic anemias in the future (if I ever get the time to sit down and make the figures). For now, that's all I have. See you next time! #micromeded #hemebytes

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Serum Protein Electrophoresis and Immunofixation Electrophoresis (SPEP/IFE)