The Allen test is a method of examination physicians use to examine arterial blood flow into the hands. Edgar Van Nuys Allen described the original test in 1929. In 1952, however, Irving S. Wright suggested an alternative test that has largely replaced the original in modern medical practice. Professionals often refer to the newer test as the modified Allen test. Over the many years since doctors incorporated the modern test, physicians have attempted many adjustments. However, few have excelled in popularity like the originals.
The original Allen test is straightforward and has only a few steps:
The ultimate goal of the test is to identify abnormal circulation.
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