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A yellow thing made of plastic, taped to the crook of an arm. A pair of hands wearing gloves, injecting medicine into the yellow thing.
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We sometimes need to put medicine, food, fluid, painkillers and anaesthetic directly into your bloodstream. To do this, we insert a thin plastic tube into a blood vessel, usually in your hand or in the crook of your arm. Mathilda, aged 14, explains exactly what happens.