12-25-2025, 06:46 AM
I'm a third-year medical student currently on my internal medicine rotation, and I'm trying to get better at the independent interpretation of routine lab work like a complete blood count. While I understand the basic reference ranges, I struggle with synthesizing the findings—like differentiating between causes of microcytic anemia or interpreting a mild leukocytosis with a left shift in a post-operative patient. For residents and practicing physicians, what's your systematic approach when you first glance at a CBC? What are the most common pitfalls or overlooked flags for students, and how do you integrate the CBC with the patient's history and other labs to form a differential rather than just listing abnormal values?