How many tests are included in a complete blood count (CBC)?

A complete blood count (CBC) typically includes five primary tests that provide important information about your blood. These tests measure:

1. Red Blood Cell (RBC) Count: This measures the number of red blood cells in a volume of blood, indicating the blood's ability to carry oxygen.

2. White Blood Cell (WBC) Count: This assesses the number of white blood cells, which are vital for the immune response and can indicate infection or other conditions.

3. Hemoglobin (Hb or Hgb): This test measures the amount of hemoglobin, the protein in red blood cells that carries oxygen.

4. Hematocrit (Hct): This test determines the proportion of blood volume that is occupied by red blood cells, providing insight into blood's thickness and the body’s oxygen-carrying capacity.

5. Platelet Count: This counts the number of platelets, which are essential for blood clotting.

These five tests combined give healthcare providers significant insights into a person’s overall health and can help diagnose various medical conditions. While other components might be assessed alongside a CBC, such as indices of red blood cells (like MCV, MCH, and MCHC), these