197. A 22-year-old man developed painful swelling of his left knee and gives a history of...

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197. A 22-year-old man developed painful swelling of his left knee and gives a history of diarrhoea 3 weeks back which resolved in 3 days. Testing for gonorrhoea is negative. Reactive arthritis associated with the recent enteric infection is suspected. Which of the following is true about this condition? a. Intestinal infection with amoeba has been associated with this syndrome. b. There is a higher prevalence of HLA-DQ2. c. It is more common in women than in men. d. Synovial fluid shows an elevated leukocyte count 197. A 22-year-old man developed painful swelling of his left knee and gives a history of diarrhoea 3 weeks back which resolved in 3 days. Testing for gonorrhoea is negative. Reactive arthritis associated with the recent enteric infection is suspected. Which of the following is true about this condition? a. Intestinal infection with amoeba has been associated with this syndrome. b. There is a higher prevalence of HLA-DQ2. c. It is more common in women than in men. d. Synovial fluid shows an elevated leukocyte count