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One of the most basic and commonly ordered laboratory tests nowadays in modern medicine is the Complete Blood Count (CBC). If your doctor has ordered this test as part of a routine checkup or ordered it because of a particular symptom, you can be empowered to take charge of your health if you know what this test is and what it is telling you.
What Is a Complete Blood Count Test?
Also known as a Full Blood Count (FBC) in some medical systems, a Complete Blood Count (CBC) test is a broad blood panel which counts and analyzes the three main types of cells found in your blood.
Red Blood Cells (RBC) – carry oxygen to the organs and tissues of the body from the lungs.
White Blood Cells (WBC) – the main immune cells in your body to fight against infections, bacteria and viruses
Platelets (Thrombocytes) - are the small cells that help prevent bleeding and stop it when it occurs at the site of an injury.
All of these cell types are analysed by many parameters, in a detailed CBC test report, up to 25+ sub-parameters, providing a clear picture to your doctor about your overall blood health.
The CBC test is performed regularly to:
Identify anaemia (low levels of haemoglobin or RBC)
Determine if there is an infection caused by bacteria or viruses (increase or unusual increase in white blood cells, or leukocytes)
Identify disorders of clotting (platelet number disorders)
Blood cancer screening (leukaemia)
Keep track of chronic diseases such as diabetes, kidney disease, autoimmune disorders
Assess effectiveness of continuing treatments such as chemotherapy
What Does a Complete Blood Count Include? Key Parameters Explained
A standard complete blood count test covers the following essential parameters:
Together, these markers provide clinicians — and you with a detailed, data-driven snapshot of your blood health.
When Should You Get a Complete Blood Count Test?
Your doctor may recommend a CBC test in several situations:
Symptomatic Indications:
Persistent fatigue, weakness, or dizziness (possible anaemia)
Unexplained weight loss or night sweats
Frequent infections, prolonged fever, or swollen lymph nodes
Easy bruising, excessive bleeding, or slow-healing wounds
Paleness, shortness of breath, or a racing heartbeat
Routine & Preventive Screening:
Annual health check-ups and wellness panels
Pre-operative assessments before surgery
Pre-pregnancy and antenatal care monitoring
Routine monitoring of chronic conditions (diabetes, thyroid disorders)
Treatment Monitoring:
During chemotherapy or radiation therapy
Monitoring recovery from dengue, malaria, or typhoid
Evaluating response to iron supplements, B12, or folate therapy
The Complete Blood Count (CBC) is a first-line test because it is non-invasive, affordable, and provides a wide range of clinically relevant information in a single blood draw.
How Is the CBC Test Performed?
The complete blood count test requires no special preparation in most cases:
Sample Type: EDTA Whole Blood (collected via a simple venepuncture — a small needle prick in the arm)
Fasting: Generally not required, though your doctor may advise fasting if other tests are being run simultaneously
Duration: The collection takes less than 5 minutes
Report Time: Results are typically ready within 8 hours
Eligible For: Male and Female patients of all ages, including children and elderly
The blood sample is processed through an automated haematology analyser that counts and characterises each cell type with high precision
Complete Blood Count Test Cost at JDAR Path Lab, Delhi
At JDAR Path Lab, Shanti Niketan, New Delhi, the complete blood count test cost is just ₹500 — covering a comprehensive panel of 25+ parameters with results delivered digitally within 8 hours.
