Pictures from Hematology Lab

Work is getting crazy-busy now (lots of people leaving for the Fourth of July and summer vacations), plus I had a test in hematology lecture this week, which has left me little time for extra activities like writing.  Since I haven’t written lately, I thought I’d share some pictures from hematology lab a few weeks ago.

An eosinophil

The giant purple and pink cell is an eosinophil, which is a type of white blood cell. The rest of the cells are red blood cells.

A neutrophil

The big cell here is a neutrophil, another type of white blood cell.  Neutrophils are the most common white blood cells seen in dogs.


The three cells at the end of the pointer are platelets.  Platelets aren’t always that easy to see.  Sometimes they stain very pale.  They can vary quite a lot in size, too.

Lots of neutrophils

All the purple splotches and shapes are neutrophils (or rather, the nuclei of neutrophils – you can’t see their cytoplasm in this picture).  It is not normal to see that many neuts together.  My classmate who had this slide said she counted 34 neuts in one field of view! There are a few platelets in the lower right-hand quadrant of the field of the view. You can’t easily tell from this picture (unless you’re a hematology expert), but the patient this blood came from was extremely anemic and very sick.

Nucleated Red Blood Cell

The deep, dark purple cell in a nucleated red blood cell.  It’s an immature form of a red blood cell.  Seeing a lot of these on a blood smear isn’t normal.  If you do see a lot, it means the patient may have a problem where it doesn’t have enough mature red blood cells.  Since there aren’t enough mature red blood cells, the body starts kicking immature ones out in to the bloodstream to try to compensate for the lack of mature red blood cells. The pale cluster of cells in the upper right is a group of platelets.

That’s all for tonight.  Enjoy!

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