What baseline work-up or "staging" do you do in patients with a new diagnosis of Sjogren's (i.e., PFT, cryoglobulins, complement, RF, UA)?  

In addition to physical examination (especially the salivary glands and lymph nodes), baseline workup for Sjogren's should include assessment of cryoglobulins and complement (particularly C4) as these are associated with worse prognosis - including lymphoproliferative disease. Less critically but po...