Vasculitis - Diagnosis

How is the diagnosis of vasculitis made?

Blood Tests: 

Erythrocyte Sedimentation Rate [ESR], C - reactive protein [CRP], Red blood cells, White blood cells and Platelet count. 

Antibody detection tests: 

Anti-neutrophil cytoplasmic antibodies (ANCA), Rheumatoid factor [RF], Anti-nuclear antibody [ANA].

Imaging studies: 

Ultrasound, Computerized tomography [CT], Magnetic resonance imaging [MRI], and Angiogram.

Biopsy: 

Pathological examination of tissue under microscopy.

Urine analysis: 

To detect abnormalities in urine such as red blood cells increased amount of protein in urine.