50.5 MB (50.0 MB compressed)
3437 x 5134 pixels
29.2 x 43.4 cm ⏐ 11.5 x 17.1 in (300dpi)
AJ PHOTO / SCIENCE PHOTO LIBRARY AJ PHOTO / SCIENCE PHOTO LIBRARY
Blood glucose testing. Diabetic man using a lancet to take a blood sample for glucose testing. This pen-like device contains a double-edged blade which pricks the skin of his finger. The blood is then tested inside the 'pen' and a digital read-out appears on an integral screen. Diabetes is a metabolic disorder in which unused sugars accumulate in the blood and urine. Monitoring of blood glucose levels allows diabetics to control the disease through diet, medication and in some cases insulin injections.
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