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CBC - Complete Blood Count Tests |
Reference Range |
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WBC |
3.8-10.8 x 103/mm3 |
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WBC (White Blood Cell) is the number of white blood cells present in the blood. White blood cells fight infection. High levels can result from bacterial infections, inflammation, leukemia, trauma, intense exercise, or stress. |
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Granulocytes |
Absolute: 2.25-8.0 x 103/mm3 Relative: 50-70% |
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Granulocytes, also known as neutrophils, are the most abundant type of white blood cell found in healthy adults. Results are often increased in bacterial infections and are reported in an absolute number and a percentage of the total white count. |
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Lymphocytes |
Absolute: 0.8-4.8 x 103/mm3 Relative: 18-42 % |
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Lymphocytes are a type of white blood cell that is present in two forms- B Cells, which produce antibodies, and T Cells, which recognize and process foreign substances for removal. Results are reported in an absolute number and a percentage of the total white count. |
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Monocytes |
Absolute: 0.1-1.3 x 103/mm3 Relative: 2-11 % |
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Monocytes are the largest type of white blood cell. They are capable of ingesting bacteria, other foreign substances, and dead body cells. Results are reported in an absolute number and a percentage of the total white count. |
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RBC |
Females: 3.80-5.10 x 106mm3 |
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RBC (Red Blood Cell) is the number of red blood cells present in the blood. Red blood cells carry oxygen from the lungs to other tissues of the body and then carry carbon dioxide from tissues to the lungs, where it can be removed. |
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Hemoglobin |
Females: 11.7-15.5 g/dL |
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Hemoglobin is a protein found in red blood cells that is capable of binding to oxygen and transport it to tissues in the body. A low hemoglobin result can indicate blood loss or anemia. |
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Hematocrit |
Females: 35-45 % |
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Hematocrit is the percentage of red blood cells present in a whole blood sample. Low values can indicate blood loss or anemia. |
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MCV |
80-100 fL |
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MCV (Mean Corpuscular Volume) is the average size of red blood cells in a blood sample. MCV results are often used to classify anemias. Increased MCV can be seen in anemias that cause an increase in red cell size (anemia caused by vitamin B12 deficiency, for example). Decreased MCV can be seen in anemias that cause a decrease in red cell size (iron deficiency anemia, for example). |
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MCH |
27-33 pg |
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MCH (Mean Corpuscular Hemoglobin) is a calculation of the average amount of hemoglobin inside a red blood cell. MCH results help in classifying anemias. Large RBC's tend to have higher MCH results and would be found in anemias that cause in increase in red cell size. Small RBC's have smaller MCH results and would be found in anemias that cause a decrease in red cell size. |
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MCHC |
32-36 g/dL |
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MCHC (Mean Corpuscular Hemoglobin Concentration) is a calculation of the average concentration of hemoglobin inside a red blood cell. Decreased MCHC's are seen in conditions where there are low amounts of hemoglobin inside red cells (such as iron deficiency anemia). |
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RDW |
11.0-15.0 % |
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RDW (Red Cell Distribution Width) is a calculation the expresses the variation in size of red blood cells in a sample of blood. In some conditions, like pernicious anemia, there is marked variation in red cell size, which is reflected in a higher than normal RDW. RDW can also be elevated after a transfusion, due to the difference in red cell size between the patient and the donor. |
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Platelets |
140-400 106/mm3 |
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Platelets are small fragments of cells that are essential to clot formation. Because they are "sticky", they adhere together and to other blood components to form a plug. |
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