A CBC is a routine blood test used to evaluate your overall health and detect a wide range of disorders, including anemia, infection, inflammation, bleeding disorders, and certain cancers.
What a Complete Blood Count (CBC) Includes
A Complete Blood Count (CBC) is a standard laboratory test that measures various components of your blood. It's a versatile and informative test used to evaluate your general health and detect a wide range of disorders, including anemia, infection, inflammation, bleeding disorders, and even certain types of cancer. The CBC typically measures:Red Blood Cells (RBCs)
- Red Blood Cell Count: Measures the total number of red blood cells in your blood.
- Hemoglobin (Hgb): A protein in red blood cells that carries oxygen from the lungs to the rest of the body. Low hemoglobin levels are a hallmark of anemia.
- Hematocrit (Hct): The percentage of your blood volume that is made up of red blood cells.
- Red blood cell indices (MCV, MCH, MCHC, RDW): These measure the average size, weight, and hemoglobin concentration of your red blood cells, helping to classify different types of anemia.
White Blood Cells (WBCs)
- White Blood Cell Count: Measures the total number of white blood cells in your blood. Elevated counts often indicate infection or inflammation, while low counts can suggest an immune system deficiency.
- WBC Differential: This breaks down the types of white blood cells present (neutrophils, lymphocytes, monocytes, eosinophils, basophils), providing more specific clues about the cause of an abnormality.
Platelets
- Platelet Count: Measures the number of platelets, which are crucial for blood clotting. Abnormalities can indicate bleeding disorders or clotting issues.
- Platelet Indices (MPV): Provides information about the average size of platelets.