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Full blood count (FBC) blood test

Dr Roger Henderson
Reviewed by Roger HendersonReviewed on 29.04.2024 | 1 minute read

Blood tests have many different uses. They can be used to diagnose a condition, to monitor a particular organ in the body such as the kidney or liver, and they can also be used to give measurements of bodily processes such as blood sugar or current levels of inflammation.

Full blood count

The full blood count or FBC is one of the most commonly requested tests, and provides information on the levels of red blood cells, white blood cells and platelets.

Why is your doctor ordering it?

This would be a normal test to order for routine blood tests. Specifically, it will give your doctor information on your red blood cell levels (low red blood cell levels - low haemoglobin - is anaemia), your platelets (which are used in clotting), and your white blood cells (which are part of your immune system and help fight infection and inflammation).

Are there any special requirements for the blood test?

You do not need to be fasting for this blood test, there are no special requirements. It can be taken like any normal blood test and is usually taken in a purple colour bottle.

Remember to press hard for a good few minutes after the needle has been removed and keep your elbow straight, to prevent a nasty bruise!

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Dr Roger Henderson
Reviewed by Roger Henderson
Reviewed on 29.04.2024
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