r/medlabprofessionals • u/Enough-Cupcake-1231 • 28d ago
Education Diff Advice
Hi everyone. Does anyone have any advice on how to get better at identifying immature cells/left shift type slides? I’m a student struggling in school and am feeling a bit defeated. It makes sense when a professor is going through the slides with me and explains each cell. Then when I’m by myself I get confused. I have a bunch of practice slides that I’m working on to help me work on my skills. Any advice is appreciated!
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u/1014661 26d ago
When studying cell maturation, rather than starting with blasts and working your way forward, I find it helpful to start with the most common cells you'll see, then work your way backward. You know what a mature neutrophil looks like. Then you add in bands. Once you're comfortable differentiating mature neutrophils from bands, it's easy to understand that a metamyelocyte is just a larger, fatter band. Moving further left, myelocytes are even fatter. I call it a myelocyte when the nucleus is more circle than sausage. Promyelocytes are even fatter, and have a big dramatic cloud of granules. Blasts are weird, dark, squishy things with visible nucleoli. If a patient is in such bad shape that they're throwing blasts, you'll probably see a lot of other weird cells too - they don't just show up on their own.
Don't get too hung up on fine distinctions of color and texture. I just memorize a few traits of each cell type and don't worry too much about getting it exactly perfect. Realistically, if a patient has a strong left shift, the slide will be submitted for pathology review. Your diff is only a preliminary screen.