Doc 2 years ago, my sister was diagnosed with lupus and relapsed again. 2 days ago, suddenly her knee was sore like a pull. And previously I often complained of stiff fingers, especially in the morning. to find out whether rheumatoid arthritis includes what tests should be done? if the indication is positive, can it be treated w / tocilizumab therapy? the cost is around Rp. Doc? Thank you for your attention.