Description
Haemoglobin is the protein that carries oxygen from your lungs to every tissue in your body, and measuring it is the fastest, most direct way to check for anaemia.
About the Haemoglobin (Hb) Test
This test quantifies the concentration of haemoglobin in your blood. Low levels indicate anaemia, which can cause fatigue, breathlessness, pale skin and reduced concentration, and may point to iron deficiency, blood loss or an underlying chronic condition. Elevated levels can occur with dehydration or certain lung and blood conditions. It is a simple, high-value check for anyone experiencing tiredness or as part of a routine screen.
Preparation and turnaround
A quick venous blood sample is all that is needed, with no fasting required. The appointment takes only a few minutes and results are usually ready within one working day. If your level is abnormal, a doctor may recommend a Full Blood Count or iron studies to establish the cause.
Frequently asked questions
What is a normal haemoglobin level?
Reference ranges differ by sex and laboratory, but broadly around 13–17 g/dL for men and 12–15 g/dL for women. Your report will include the exact range used.
Can this test diagnose the cause of anaemia?
It confirms whether anaemia is present but not why. Follow-up tests such as iron studies or a peripheral blood film are used to identify the underlying cause.
Do I need to prepare?
No special preparation or fasting is required. Staying normally hydrated helps ensure an accurate reading.
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