American College of Rheumatology (ACR) Criteria for Polyarteritis Nodosa

Gender of patient

Has rheumatoid arthritis been excluded?

Has SLE with vasculitis been excluded?

Usual body weight , before onset of illness

Body weight after onset of illness

Could dieting or heavy exercise by the patient explain the weight loss?

Does the patient have a mottled, reticular pattern in the skin of the extremities or torso (livedo reticularis)?

Does the patient have testicular pain or tenderness?

Can the testicular discomfort be explained by trauma or infection?

Does the patient have myalgia, not involving the shoulder or hip girdle?

Does the patient have muscle weakness?

Does the patient have leg tenderness?

Does the patient have a mononeuropathy or polyneuropathy?

Diastolic blood pressure

Serum BUN

Serum creatinine

Can the increase in BUN and/or creatinine be explained by dehydration or urinary tract obstruction?

Is hepatitis B antigen present in blood?

Does a biopsy of a small or medium muscular artery show an infiltrate of neutrophils with or without mononuclear cells?

Does an arteriogram show aneurysm or occlusion?

Can the arteriogram findings be explained by arteriosclerosis, fibromuscular dysplasia or other noninflammatory cause?