If the diagnosis is not clear then a test to measure the speed of the nerve impulse through the carpal tunnel ( nerve conduction test) may be advised. Often the symptoms are so typical that no tests are needed to confirm the diagnosis. Do I need any tests for carpal tunnel syndrome? Symptoms persist all the time if the condition becomes severe. Flicking the hand and wrist may also give relief. The symptoms may be eased for a while by raising the hand up or hanging it down. Typically, symptoms are worse at night and may wake you up. Symptoms tend to come and go at first, often after you use the hand. This may cause poor grip and eventually lead to muscle wasting at the base of the thumb.
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