A 48-year-old man complains of joint pain and stiffness for the past three months. All of the following are evidence of the diagnosis of rheumatoid ahritis (RA), EXCEPT:
Early morning stiffness lasting one hour Numbness and blanching of fingers on exposure to cold Symmetrica linvolvement of the metacarpophalangeal joints Synol fluid with high viscosity and 30,000 lymphocytes/mm3