Is it possible for someone who's 50 to have rheumatoid arthritis even if the blood work n X-ray was negative.??

No. There is a group of diseases called "seronegative arthritis." In this case, the lab tests do not demonstrate rheumatoid arthritis but do often show elevated levels of inflammation in the body. These diseases can have some similar symptoms to rheumatoid arthritis and are often treated using the same medications.
Yes. Yes it is. X rays are often normal early in the disease and 20-25% of RA patient have negative blood tests. .

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Hi, I am waiting for the results of my x-rays and blood work to see if I do have early stage Rheumatoid Arthritis. Can using Rituxan (rituximab) cause this?

Rituxan (rituximab) is RA therap. Rituxan (rituximab) is used to treat Rheumatoid Arthritis (RA). You physician will have you see a rheumatologist to clarify the diagnosis and decide on the best therapy. Rituxan (rituximab) is one of many therapies we use to treat . Read more...