What does erc stand for in blood work?

ERC stands for erythrocyte count (red blood cell count). It tells you the the number of RBCs that are present in blood. Low values are indicative of anemia. ERC is also closely related to hemoglobin (Hgb) and hematocrit (Hct) levels; if the ERC is low then Hbg and Hct will most likely be low. ERC is usually measured with the complete blood count test (CBC).

Normal Values (expressed as SI units: RBC X 10^6/microL or RBC X 10^12/L)

Male: 4.7-6.1
Female: 4.2-5.4

Pagana, K.D., & Timothy, J. (2006). Mosby's Manual of Diagnostic and Laboratory Tests (3rd e.d.). St. Louis: Mosby.