Hemoglobin and Hematocrit Profile from Whole Blood (with Platelet Count)

What Each Component Measures

Hemoglobin measures the oxygen-carrying capacity of red blood cells. Low levels may indicate anemia, while high levels could suggest conditions like polycythemia. Hematocrit reflects the percentage of red blood cells in your blood. Platelet count evaluates your ability to clot blood; abnormal levels may signal bleeding disorders or clotting issues.

Why It’s Done

Doctors order this test to diagnose anemia (low red blood cells), evaluate bleeding disorders, check for polycythemia (too many red blood cells), or monitor conditions like kidney disease or blood cancers. It’s also used before surgeries to assess clotting risks.

Sample Collection and Preparation

A small blood sample is drawn from a vein, typically in your arm. The test uses whole blood, which is then analyzed to measure hemoglobin concentration, hematocrit percentage, and platelet count. No special preparation is needed, but fasting may not be required unless instructed by your provider.

Common Conditions Affecting Results

Low hemoglobin or hematocrit may result from iron deficiency, chronic illness, or blood loss. High platelet counts could signal infection, inflammation, or certain cancers. Platelet counts below normal may indicate immune disorders or liver disease.