CBC Blood Test: What Each Value Tells You
CBC is the most common blood test. Haemoglobin, white cells and platelets each answer a different question.
Haemoglobin and red cells
Low haemoglobin often means anaemia — tiredness, pale skin and breathlessness are common signs. Causes range from iron deficiency to chronic disease, so the cause needs checking, not just the number.
White blood cells
White cells fight infection. A high count can suggest infection or inflammation; a low count can suggest bone marrow or medicine effects.
Platelets
Platelets help blood clot. Very low or very high counts need medical review, especially with bruising or bleeding.
A CBC is a screening test. Abnormal values usually need a repeat test or further tests, as advised by your doctor.
Disclaimer: This article is general health information only, not medical advice. Consult a doctor for personal health decisions, symptoms, or test results.
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