This is a common screening online blood test for indications of anemia, blood disorders, infection and other disease.
Note: This CBC test is also a component of the Comprehensive Health Profile. Therefore, you would never need to order both of those tests at the same time.
Preparation: No special preparation is needed. Fasting is not required for this blood test. In general, being well hydrated (drinking plenty of water before the blood draw) will usually make your veins somewhat easier to locate and access for the blood draw.
Complete Blood Count: Online Blood Test
- White Blood Cell Count (WBC) - The infection fighting cells of the immune system found in the blood. Lowered or elevated levels may be associated with a disease process.
- Red Blood Cell Count (RBC) - Measures the number of oxygen-carrying cells in the blood. Lowered levels associated with anemia, elevated levels associated with smoking and several diseases.
- Hemoglobin (HGB) - Measures the amount of oxygen-carrying protein in the RBC. Significant increases or decreases can be seen in anemia or RBC disease.
- Hematocrit (HCT) - Measures the oxygen-carrying capability of the blood by measuring the percentage of blood made-up of red blood cells. Significant decreases are one indicator of anemia.
- MCV, MCH, MCHC, RDW - Collectively called "indices", these tests measure size and other characteristics of the red blood cells. They can be used to further define the causes of an anemia state. An isolated abnormal value probably has little clinical significance, but can only be confirmed by your physician.
- Platelet Count - These are small packages of clotting materials in the blood. Too many cause problems with unnecessary clotting; too few may cause excessive bleeding. Certain conditions alter this count.
- Lymphocytes, Monocytes, Neutrophils, Eosinophils - Different types of WBCs. They may be used to evaluate allergic reactions or differentiate between bacteria, viral or parasitic infections.
For more Information on any of your lab test results
- Consult your physician
- Review the information on the independent, non-profit web site: labtestsonline.org.
These are not intended as diagnostic comments, but only to give you sufficient information for further discussion with your physician. It is important that you promptly consult your physician regarding any abnormal findings.
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