A 45-year-old African American female is observed to have a rash that extends from one cheek across the bridge of her nose and onto the other cheek. Her routine blood work reveals anemia and...

A 45-year-old African American female is observed to have a rash that extends from one cheek across the bridge of her nose and onto the other cheek. Her routine blood work reveals anemia and thrombocytopenia, and her urinalysis is positive for protein and blood (indicative of glomerulonephritis). Which of the following is true regarding her disease?

A. Brain involvement is uncommon in her disease.

B. The presence of ANA is highly specific and diagnostic of her disease.

C. Her disease may be due to starting hydralazine for elevated blood pressure.

D. Her disease is a vasculitis caused by Type II hypersensitivity.