old pt have swollen knees and patella ballotment and fluid +ve ,,, what is the next step.. X RAY old pt have swollen knees and patella ballotment and fluid +ve ,,, what is the next step: a. MRI b. X RAY c. INCISION AND DRAINAGE d. ??? Share This: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook