CBC (Complete Blood Count)

The CBC (Complete Blood Count) test is a comprehensive blood test used to evaluate overall health and detect a variety of disorders. It measures several key components of your blood, including:

1. Red Blood Cells (RBCs): These cells carry oxygen from your lungs to the rest of your body and return carbon dioxide to be exhaled. The CBC measures the number of RBCs and their characteristics, such as size and hemoglobin content.
2. White Blood Cells (WBCs): These cells are part of the immune system and help fight infections. The CBC measures the total number of WBCs and can also provide a differential count of the different types of white blood cells.
3. Hemoglobin (Hb): This is the protein in red blood cells that carries oxygen. The hemoglobin level helps assess your blood’s ability to carry oxygen.
4. Hematocrit (Hct): This measures the proportion of blood volume that is occupied by red blood cells. It helps in diagnosing anemia and other conditions.
5. Platelets: These are small cell fragments that help with blood clotting. The CBC measures the number of platelets and their size.
6. Mean Corpuscular Volume (MCV): This indicates the average size of your red blood cells.
7. Mean Corpuscular Hemoglobin (MCH): This measures the average amount of hemoglobin in each red blood cell.
8. Mean Corpuscular Hemoglobin Concentration (MCHC): This measures the average concentration of hemoglobin in a given volume of red blood cells.
9. Red Cell Distribution Width (RDW): This assesses the variation in the size of red blood cells.

The CBC test is used for a variety of purposes, such as diagnosing anemia, infections, and many other medical conditions. It can also be used to monitor a person’s response to treatment or to evaluate their general health.

Why consider this test?

The CBC (Complete Blood Count) is tested for several important reasons as it provides crucial information for

1. Diagnose Health Conditions
2. Monitor Existing Condition
3. Evaluate Symptoms
4. Assess General Health
5. Pre-Surgical Evaluation
6. Screening
7. Monitor Response to Medications

Who should get this test done?

A CBC (Complete Blood Count) test can be beneficial to individuals based on their health status and symptoms. Here are some situations and groups of people who might need a CBC:

1. Individuals with Symptoms: Symptoms like fatigue, weakness, frequent infections, unexplained bruising, or bleeding, a CBC can help diagnose potential underlying causes.
2. People with Chronic Health Conditions: Those with chronic conditions like diabetes, kidney disease, or autoimmune disorders might need regular CBC tests to monitor their health and treatment effectiveness.
3. Individuals Undergoing Routine Health Checkups: Regular health check-ups often include a CBC to provide a snapshot of overall health and catch any issues early.
4. Pregnant Women: Pregnant women are often tested with a CBC to monitor their blood levels and ensure that they are not anaemic or experiencing other blood-related issues.
5. People Starting New Medications: Some medications can affect blood cell counts. A CBC may be required to monitor for side effects and adjust medication as needed.
6. Before Surgery: A CBC might be performed as part of the pre-operative assessment to ensure that blood levels are within normal ranges and to plan for any potential complications.
7. Individuals with Recent Infections or Illnesses: If you’ve had a recent infection or illness, a CBC can help evaluate your recovery and check for any lingering effects.
8. Monitoring Blood Disorders: For individuals with known blood disorders, such as anaemia or leukaemia, regular CBC tests are crucial to monitor the condition and response to treatment.
9. Screening for Undiagnosed Conditions: Sometimes, a CBC can reveal abnormalities that prompt further investigation for conditions that might not yet present obvious symptoms.

In general, if you're uncertain whether you should have a CBC, it's best to consult with a healthcare provider who can assess your specific health needs and advise on appropriate tests.

More information

A CBC is a versatile and important test that provides essential insights into your overall health and helps guide further diagnostic and treatment decisions.

Other Names: Full Blood Count (FBC), Hemogram, Blood Panel, Complete Blood Profile, CBC with Differential, Hematology Panel