This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Indication of systemic steroids in rheumatoid ahritis is: 
Select and explain. 
A. Mononeuritis multiplex, B. Carpul tunnel syndrome, C. Presence of deformities, D. Aicular cailage involvement
A: Mononeuritis multiplex
Answer: A: Mononeuritis multiplex 
Explanation: Answer is A (Mononeuritis Multiplex) : Mononeuritis multiplex in Rheumatoid ahritis is due to nerve ischaemia from occlusion of vaso nervosum due to vasculitic change - Harrison Indications of Steroids in Rheumatoid ahritis include: On sho term basis to tide over acute disabling episodes etc. To manage serious extra-aicular manifestations such as: Vasculitis: exemplified here by mononeuritis multiplex Pericarditis Perforating eye lesions etc.