The Complete Blood Count is a standard blood test that helps in assessing your general health. This test helps monitor the different types of cells present in the blood, such as red blood cells (RBCs), white blood cells (WBCs), and platelets, to diagnose health conditions. Additionally, it provides valuable information about the effects of medications or medical conditions on the body and helps assess the health of the immune system. The CBC test evaluates various parameters related to the different components of blood. Here are the main parameters that are checked in the test: White blood cells (WBCs) also called leukocytes are crucial for fighting infections and play a key role in the immune system. The test reveals the number of WBCs in your body with a differential count, which counts each type of WBC and immature RBCs. Red blood cells (RBCs) carry oxygen from around the body. Each RBC contains an iron-rich protein called haemoglobin, which helps in the transportation of oxygen. The quantity of RBCs within a specific volume of blood is typically measured in microliters (mcL). RBCs transport oxygen from the lungs to the entire body. It represents the proportion of your blood that is made up of RBCs. It indicates the level of hemoglobin present in your bloodstream. Hemoglobin is a protein in RBCs that transports oxygen from the lungs to the entire body. Mean corpuscular hemoglobin concentration (MCHC): It refers to the average hemoglobin concentration in a specific volume of blood. Mean corpuscular hemoglobin (MCH): It signifies the average hemoglobin concentration within individual RBCs. Mean corpuscular volume (MCV): It denotes the average size of your RBCs. Red cell distribution width (RDW) : It indicates the variability in RBC size. It represents the total quantity of platelets in your blood sample. Before the CBC test, it's important to consider a few important things listed below: Prerequisites : No special preparations are required for a CBC test. Your blood will be drawn for analysis. Best time to get tested : You can reach out to your doctor for the best time to get tested based on whether you are getting other tests along with the CBC. Eligibility for CBC test : Anyone can undergo a CBC test. Your doctor may order the test for routine health check-ups or if you’re showing signs of illness during checkups. Cautions before taking the CBC test : The CBC test is safe and no special precautions are needed for it. By preparing with these steps, you can make sure your Hemogram blood test at home or in a laboratory gives accurate results. There are several reasons why a healthcare professional may recommend a CBC test: Monitoring and diagnosing conditions: The CBC test is beneficial for identifying and keeping track of various health problems like anaemia, bleeding issues, infections, and some cancers. If you have an ongoing health condition like chronic kidney disease (CKD) or cancer, the CBC test can be used to monitor your progress and make sure your treatment is effective. Pre-treatment evaluation: Before starting certain medical procedures like surgery or chemotherapy, a CBC test might be done (along with other tests) to check your eligibility for the procedure. Evaluation of unexplained symptoms: If you're feeling tired, weak, bruised, bleeding or getting frequent infections without any clear reason, a CBC test can help identify if there's something wrong with your health. Routine health check-ups: The CBC test is often done with a routine health check-up or physical exam, to set a starting point and keep track of your overall health. A CBC test can help you get the right diagnosis and treatment based on the health of your blood components. 3. Is fasting required for a CBC test? 4. Is home sample collection available for CBC test? 5. What are the normal levels for the CBC test? The normal levels of the parameters in a CBC test are as follows: Red Blood Cells (RBC) Count: 4.5-5.5 mill/mm³ Haemoglobin (Hb): 13.0-17.0 g/dL Haematocrit (HCT) / Packed Cell Volume (PCV): 40-50% Mean Corpuscular Volume (MCV): 83-101 fL Mean Corpuscular Haemoglobin (MCH): 27-32 pg Mean Corpuscular Haemoglobin Concentration (MCHC): 31.5-34.5 g/dL Red Cell Distribution Width (RDW) CV: 11.6-14.0% Mentzer Index: Sehgal Index: Total White Blood Cell Count (TC): 4000-10000 cells/mm³ Neutrophils: 40-80% Lymphocytes: 20-40% Monocytes: 2-10% Eosinophils: 1-6% Basophils: 0-2% Absolute Neutrophil Count (ANC): 2000-7000 /mm³ Absolute Lymphocyte Count (ALC): 1000-3000 /mm³ Absolute Monocyte Count (AMC): 200-1000 /mm³ Absolute Eosinophil Count (AEC): 20-500 /mm³ Absolute Basophil Count (ABC): 0-100 /mm³ Neutrophil Lymphocyte Ratio (NLR): 1.0-3.0 Platelet Count: 150-450 10³/µL Platelet Hematocrit: 0.20-0.50% Mean Platelet Volume (MPV): 7-13 fLWhat is a Complete Blood Count (CBC) Test?
Complete Blood Count (CBC) Test Parameters
WBCs
RBCs
Haematocrit (Hct)
Hemoglobin (Hb)
RBC indices
Platelet count
Complete Blood Count (CBC) Test Preparation
Why Take a Complete Blood Count (CBC) Test?
FAQs on Complete Blood Count (CBC) Test
1. How much does a CBC test cost?
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