Clinical guidelines

Clinical guidelines are used by the health professionals at Great Ormond Street Hospital for a wide range of conditions, treatments and tests.

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Clinical guidelines

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Skin biopsy: punch method

The skin is complex with an array of functions. It is the body’s largest organ, protecting the deeper tissues and organs from mechanical damage, chemical damage, bacterial damage, ultraviolet radiation and thermal damage. The skin aids in regulating body temperature, in excretion of urea and uric acid and also synthesis of vitamin D (Marieb 2012).