Septic Arthritis — Topic Test
9 questions · exam mode (answers revealed at the end). 18 min suggested.
A 4-year-old child is brought with a limp and a recent febrile illness. He resists all movement of the right hip and holds it flexed, abducted and externally rotated. Ultrasound shows an effusion and aspiration yields turbid fluid with 70,000 cells/mm3. According to Kocher's criteria for differentiating septic arthritis from transient synovitis of the hip, which of the following is NOT one of the four predictors?
ATemperature greater than 38.5 degrees Celsius
BErythrocyte sedimentation rate greater than 40 mm/hr
CC-reactive protein greater than 20 mg/L
DNon-weight-bearing on the affected side