 The following laboratory studies were requested including electrolytes, CBC, thyroid function tests, B12, ANA, C-reactive protein, complement, cryoglobulins, double-stranded DNA antibodies, folate level, hemoglobin A1c, immunofixation electrophoresis, P-ANCA, C-ANCA, protein electrophoresis, rheumatoid factor, paraneoplastic antibody studies requested from the Mayo Clinic, B12. 
The following laboratory studies were requested including electrolytes , CBC , thyroid function tests , B12 , ANA , C - reactive protein , complement , cryoglobulins , double - stranded DNA antibodies , folate level , hemoglobin A1c , immunofixation electrophoresis , P - ANCA , C - ANCA , protein electrophoresis , rheumatoid factor , paraneoplastic antibody studies requested from the Mayo Clinic , B12 .