The provider ordered a reticulocyte count on a patient. To p…

The provider ordered a reticulocyte count on a patient. To perform the test, the patient’s peripheral blood was stained with a supravital stain, such as New Methylene Blue, as shown here. What is the nature of the blue-staining inclusions in some of the cells? image009643987d8.jpg

You are performing a WBC estimate on 40x and come across a c…

You are performing a WBC estimate on 40x and come across a cell that looks like a possible nRBC you want to take a closer look at it on 100x.  You place the cell in the center of the field of view on 40x, and then rotate to the 100x (adding immersion oil).  Upon fine focus on 100x, the cell is still in the center of the field of view.  This concept is known as: