Absolute Nucleated RBC
What It Means
The count of immature red blood cell precursors that normally stay in the bone marrow.
Why It Matters
When they appear in circulation, it can signal that your bone marrow is working hard to release new red cells or responding to stress.
Why It Matters
Most useful when paired with hemoglobin, reticulocytes (if available), and other CBC markers to understand how actively your body is pushing new red cells into circulation.