What is being analysed?
Blood count extension refers to the examination of the different components present in the blood, including red blood cells (RBCs), white blood cells (WBCs), and platelets. This analysis provides valuable insights into the overall health of an individual's circulatory system.
What does the result mean?
The results of a blood count extension indicate the quantity and quality of various blood components. Abnormalities in these values can signal underlying health conditions, such as anaemia, infection, or clotting disorders.
Why conduct the analysis?
A blood count extension is conducted to assess a patient's overall health status, diagnose specific medical conditions, monitor the progression of certain diseases, or evaluate the effectiveness of ongoing treatments.
When to perform the analysis?
Blood count extension may be performed as part of routine health check-ups, during the diagnosis of symptoms such as fatigue, weakness, or unexplained bruising, or as a follow-up measure for individuals undergoing treatment for certain medical conditions.
What sample is required?
A blood sample is required for a blood count extension analysis. This is typically collected through a venous blood draw from a vein in the arm.
Is any prior preparation necessary?
Generally, no special preparation is needed for a blood count extension. However, it is advisable to inform your healthcare provider about any medications you are taking, as certain drugs may influence the results.
How is it used?
The collected blood sample is analysed using automated haematology analysers in a clinical laboratory. These instruments measure the various blood components and generate a detailed report for interpretation by healthcare professionals.
What are the normal values?
|
Blood Component |
Normal Range |
|
RBC Count |
4.5-5.5 million cells/mcL |
|
WBC Count |
4,500-11,000 cells/mcL |
|
Haemoglobin Level |
12-16 g/dL for females; 14-18 g/dL for males |
|
Platelet Count |
150,000-450,000 cells/mcL |
|
Haematocrit |
36%-46% for females; 39%-49% for males |
What does it mean to have altered values?
Altered values in a blood count extension may indicate underlying health issues. For example, a low RBC count could suggest anaemia, while elevated WBC count may indicate infection or inflammation. Abnormal platelet count may point towards clotting disorders or bone marrow disorders.