General physical examination with blood laboratory tests
Detection item:
Routine physical examination
Data type:
Numeric type
Description:
Red blood cell distribution width- standard deviation (RDW-SD) is a measurement derived from the red blood cell distribution curves generated on automated hematology analyzers and is an indicator of variation in RBC size within a blood sample. The RDW is used along with the indices (MCV, MCH, MCHC) to describe a population of RBCs. The RDW measures the deviation of the RBC width, not the actual width or size of individual cells.