CBC with diff
Formal Definition
Complete Blood Count with differential - includes WBC, hemoglobin, hematocrit, platelets, and the breakdown of white cell types.
How It's Used on the Ward
"Get a CBC" - one of the most commonly ordered labs.
Example
""CBC shows WBC 18.2 with a left shift (85% neutrophils), hemoglobin 10.2, platelets normal. The leukocytosis with left shift supports infection.""
Clinical Context
"Left shift" means increased immature neutrophils (bands), suggesting acute infection. Knowing how to interpret the differential is essential.
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