Hi. One can have normal blood levels of uric acid during an acute gout attack so that is not an accurate test to diagnose a joint attack of gout. When the finger is painful, it is best to be seen by a hand specialist or a rheumatologist
who can accurately diagnose and start the correct treatment. The only way to accurately diagnose a joint gout is to get some fluid from the joint and send it for testing under a microscopy. It is also important to make sure that we rule out lot of other conditions which can mimick like a gout attack. Please see an appropriate specialist in the regards.