I have all the symptoms for lupus or ra, but tests came back negative. can i still have either?

Yes: Symptoms of lupus and rheumatoid arthritis can have similarities as well as differences. Nonetheless, it is possible to have either despite having a negative RA or lupus test. No medical test is ever 100% accurate every time as there are false positives and false negatives. In medicine, we have a saying, "we are treating patients, not lab results." however, keep exploring other poss diagnoses.

Yes: Yes, but the likelihood of that depends on what tests were ordered. Both sle and RA are clinical diagnoses being made based on multiple factors including history, examination and lab work. Around 15% of patients will have rheumatoid arthritis without a positive rheumatoid factor or anti-ccp antibody. It is much less likely for someone to have sle if their ANA and other serologies are negative.

RA maybe; lupus no: Blood tests for RA are negative in up to 30 percent of cases. The screening blood test for lupus is negative only rarely.

Yes: A significant number of patients with rheumatoid arthritis have negative blood tests but still have the disease. The history, physical examination, x-rays, and other blood tests may verify the disease. Lupus with negative blood tests is rare.