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Gangrene Exams and Tests
The diagnosis of gangrene is based on history, physical examination, blood tests, and other exams.
Physical examination of the affected area is performed to look for signs of gangrene.
Blood test results show an increase in the number of white blood cells in persons with wet gangrene or infection.
A sample of the drainage from the wound is examined to identify the bacteria causing the infection.
An x-ray film may be performed to examine the affected tissue for the presence of gas bubbles.
In people with dry gangrene, an arteriogram may be performed to visualize any obstruction in the artery which supplies blood to the affected part.
Medically Reviewed by a Doctor on 9/8/2015
Ronald A Greenfield, MD
Shehnaz Shaikh, MD
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