To test you for gout, I will often take a sample of fluid from the affected joint. Often I can find gout crystals in the fluid, which would be considered a positive test for gout. Even without checking the joint fluid, it is likely you have gout if the following symptoms are present:
●You have pain and/ or swelling in one joint, particularly the joint located at the base of your big toe.
●Your symptoms (pain, redness, and swelling) will completely go away between attacks, especially when you first start having attacks. This can change the longer you have had attacks.
●Blood tests show very high levels of uric acid