be beside yourself. C2 If you are beside yourself with a particular feeling or emotion, it is so strong that it makes you almost out of control: He was beside himself with grief when she died. (Definition of âbe beside yourselfâ from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press)
Rheumatoid Factor Test. The rheumatoid factor is an antibody present in the blood of many patients with rheumatoid arthritis. Doctors measure the level of rheumatoid factor by performing a blood test. A positive rheumatoid factor test means that the patientâs level of rheumatoid factor in their blood is considered high.
What is the Rh Negative Factor. Having Rh Positive (Rh+) Blood means that you have the Rhesus Monkey Protein in your blood cells. Having Rh Negative (Rh-) Blood means that you DO NOT have the Rhesus Monkey Protein. This is important because people with Rh- Blood cannot take a transfusion of Rh+ Blood, they do not mix.