Reactive arthritis - this can cause inflammation of the joints, eyes and urethra (tube through which urine passes). Not long after infection of the gut and genital tract, or less frequently after throat infection. Bacteria can spread an infection through small fissures that may increase inside the dried-out skin round the heel and so on the rest from the foot or via corns, calluses, blisters, hangnails, or ulcers. If the treatment cannot come from perfect time, the bacterial infection can destroy skin, tissue, and bone or spread through throughout the body. There are some symptoms: When the TSH test reveals abnormal results, a doctor may order the T4 test. It measures the quantity of thyroxine inside blood. There are two types of T4 tests. One that measures the free thyroxine and something that measures the complete thyroxine available. The total thyroxine test is impacted by proteins which can be guaranteed to thyroxine. The free thyroxine test is known as more accurate since it isn't afflicted with protein levels.