Complete Blood Count (CBC)
Doctor ConsultationSame-Day ResultDetailed Report

Complete Blood Count (CBC)

A Complete Blood Count (CBC) checks your red and white blood cells and platelets. It helps spot signs of anaemia, infection and immune-related issues. If you’re unusually tired, picking up frequent bugs or noticing easy bruising, a CBC can help uncover what’s going on. It’s also a core part of a routine health check.

4.8/5

£49

General HealthBest Seller

21 BIOMARKERS

Frequently bought with this test

Health Insights Background

Health Insights, Made Personal

Understand what your results mean with a personalised doctor's report.
Gain expert insights and clear next steps tailored to your health journey.

  • Practical, easy-to-follow advice
  • Guidance from your personal doctor
  • Personalised health recommendations

Know What you're Taking

Essential information about your test

What's in the test

What we measure:

  • Haemoglobin - Haemoglobin is the oxygen-carrying protein that gives red blood cells – and your blood – its rich red colour. This test checks how much haemoglobin is in your blood, giving a clear picture of how well oxygen is being transported throughout your body. It’s a key indicator of how efficiently your body is functioning.
  • Haematocrit (HCT) - measures the volume of your blood that’s made up of red blood cells.
  • Red blood cell (RBC) - This test measures the concentration of red blood cells (RBCs) in your bloodstream, which are essential for transporting oxygen from the lungs to tissues throughout the body and removing carbon dioxide for exhalation. An optimal RBC count is critical for supporting cellular energy, physical performance, and overall metabolic function.
  • MCV - Mean Corpuscular Volume indicates the average size of your red blood cells. This measurement provides insight into how effectively your red blood cells may be transporting oxygen throughout the body
  • MCH - Mean Corpuscular Haemoglobin reflects the average mass of haemoglobin within individual red blood cells
  • MCHC - Mean Corpuscular Haemoglobin Concentration represents the average concentration of haemoglobin within red blood cells.
  • RDW_ CV - Red Cell Distribution Width _ Coefficient of Variation quantifies the relative variation in red blood cell size by expressing it as a percentage. It provides an overview of how much red blood cell volume differs from the average size.
  • RDW_SD - Red Cell Distribution Width _ Standard Deviation measures the actual range between the smallest and largest red blood cells. Unlike RDW_CV, it is not influenced by the mean cell size and offers a direct assessment of red cell size diversity.
  • Platelets - Platelets are small, disc-shaped cell fragments produced in the bone marrow that play a key role in preventing blood loss. When a blood vessel is damaged, platelets rapidly activate, gather at the site, and help form a stable clot to seal the injury. This clotting process is essential for wound healing and maintaining vascular integrity.
  • MPV - Mean Platelet Volume reflects the average size of platelets circulating in the blood. As an indicator of platelet activity, MPV can offer insights into how actively the bone marrow is producing platelets.
  • P-LCR - Platelet Large Cell Ratio indicates the proportion of large platelets present in the blood, expressed as a percentage. It serves as a useful marker for assessing platelet turnover and function.
  • P-LCC - Platelet Large Cell Count measures the absolute number of large platelets in a given volume of blood. This value combines both platelet size and count, offering insight into the activity level of the platelet population.
  • PDW - Platelet Distribution Width assesses the variation in platelet size within a blood sample. It reflects how uniform or diverse the platelets are in terms of volume.
  • PCT - Plateletcrit represents the total volume of platelets in the blood, expressed as a percentage of the overall blood volume. It is calculated based on both the number and size of circulating platelets.
  • WCC - White Cell Count indicates the total number of white blood cells in your bloodstream. These cells are essential components of the immune system, working to detect, attack, and eliminate harmful pathogens such as bacteria, viruses, and other foreign substances. White cells also play a role in immune memory, helping your body respond more efficiently to repeated exposures.
  • Granulocyte count - Granulocytes are a category of white blood cells that include neutrophils, eosinophils, and basophils, all of which play vital roles in the body's first line of defence against infection. These cells contain granules filled with enzymes that help destroy bacteria, parasites, and other harmful organisms. The granulocyte count reflects the absolute number of these immune cells in the blood
  • Granulocyte percentage - Reflects the proportion of granulocytes relative to the total white blood cell count. This helps evaluate the distribution of immune cells and can offer important context when diagnosing infections, allergic reactions, or inflammatory conditions.
  • Lymphocytes count - Lymphocytes are specialised white blood cells that play a central role in the body’s adaptive immune response. They help recognise, target, and eliminate specific bacteria, viruses, and other pathogens. This group includes T cells, B cells, and natural killer (NK) cells, each with distinct immune functions. Lymphocytes also produce antibodies and memory cells, allowing the immune system to respond more rapidly to future exposures. An elevated or reduced lymphocyte count may indicate infection, immune system activity, or underlying haematological conditions
  • Lymphocyte Percentage - Reflects the proportion of lymphocytes in relation to the total white blood cell count. This value helps assess the balance of immune cell types.
  • MID - Mid-Sized Cell Count refers to the number of mid-sized white blood cells in circulation, primarily including monocytes, as well as eosinophils, and basophils. Unlike granulocytes, which act rapidly in acute immune responses, these mid-sized cells are involved in longer-term immune regulation, allergy response, and tissue repair. Monocytes, for example, help clear debris and develop into macrophages in tissues, while eosinophils and basophils play roles in managing allergic reactions and parasitic infections
  • MID Percentage - Mid-Sized Cell Count percentage shows the proportion of mid-sized white blood cells in relation to the total white blood cell count. This value helps assess how much of the immune system's activity is devoted to longer-term, regulatory responses rather than immediate infection control (typically handled by granulocytes).

FAQs