How to read a complete blood count (CBC) report
Oct 25, 2023
Source: Cainiu Health
Dr. Liu Feng
Introduction
In general, a routine blood test report primarily focuses on red blood cells, white blood cells, platelets, hemoglobin, and neutrophils. The neutrophil percentage refers to the proportion of neutrophils among white blood cells. Note that if any of these values are found to be abnormal after examination, it should be taken seriously. You should cooperate with your doctor for further evaluation and receive appropriate treatment based on the results.
In general, a routine blood test report primarily focuses on red blood cells, white blood cells, platelets, hemoglobin, and neutrophils. The specific details are as follows:
The normal reference range for red blood cells is 4.0–5.5×10¹²/L for adult males, 3.5–5.0×10¹²/L for adult females, 6.0–7.0×10¹²/L for infants, and 4.2–5.2×10¹²/L for children. The number and size of red blood cells can help determine the severity and type of anemia.
2. White Blood Cells (WBC)
The normal reference range for white blood cells is 4.0–10.0×10⁹/L for adults, 5.0–12.0×10⁹/L for children, and 10–22.0×10⁹/L for infants. By analyzing the white blood cell count along with the percentages of neutrophils and lymphocytes, it is possible to differentiate between bacterial and viral infections, as well as determine whether the infection is recent or in its early stage. Significantly elevated or decreased levels should raise concern for conditions such as leukemia.
3. Platelets
The normal platelet count in a routine blood test is 100–300×10⁹/L. Treatment decisions are based on whether the platelet count is high or low. Elevated platelet counts may be treated with antiplatelet aggregation drugs such as aspirin and clopidogrel. Low platelet counts should prompt evaluation for idiopathic thrombocytopenic purpura and increased risk of bleeding.
4. Hemoglobin
The normal reference range is 120–160 g/L for males, 110–150 g/L for females, 180–190 g/L for newborns, and 120–140 g/L for children. Abnormal values may indicate the presence of anemia.
5. Neutrophils
Neutrophil percentage refers to the proportion of neutrophils among white blood cells. The normal neutrophil percentage is 50%–70%, with an absolute count of 2–7×10⁹/L. Abnormal results may suggest inflammation, infection, or the presence of malignant tumors.
Note: If any of the above values are found to be abnormal after testing, it is important to take them seriously, consult with a doctor for further evaluation, and receive appropriate treatment based on the findings.
