This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolic Bone Disease, Subject name: Orthopaedics
[{'content': 'True statement regarding synovial fluid in Gout \nSelect and explain. \nA. Decreased sugar, B. Urate crystal, C. Pyrophosphate crystal, D. White cells', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (Urate crystal) (22-A)Examination of svnovial fluidSuspected conditionAppearanceViscosityCellsCrystalsBiochemistryNormalClear yellowHighFew-As for plasmaSeptic arthritisPurulentLowWhite cells +++-Glucose lowTuberculous arthritisTurbidLowWhite cells +-Glucose lowRheumatoid arthritisCloudyLowWhite cells ++--GoutCloudyNormalWhite cells +++ urate-PseudogoutCloudyNormalWhite cells+ pyrophosphate-Osteo arthritisClear yellowHighFewOften +-* Blood stained fluid - After injury, Acute inflammatory disorders pigmented villonodular synovitis* Marked reduction of synovial glucose suggests infections.* A High white cell count (more then 100,000/mm3) is usually indicative of infection, but a moderate leucocylosis is also seen in gout and other types of inflammatory arthritis.', 'role': 'assistant'}]