Needlefree blood test

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Doctors in New Zealand will soon have the option to test a patient’s haemoglobin level without taking a drop of blood. Non-invasive and continuous total haemoglobin monitoring technology uses a finger sensor to measure a person’s haemoglobin or red blood cell levels.

How it works: A sensor is slipped onto a patient’s finger and multiple wavelengths of light and advanced signal processing algorithms identify and quantify haemoglobin in the blood. Blood measurements are then displayed on a monitor.
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