50 year old man with haemoptysis

A 50-year-old white man is transferred to your hospital with a presumptive diagnosis of tuberculosis. His chest radiograph shows nodular cavitary lesions in both lung fields. His urinalysis shows 50 RBCs per high power field and 3+ proteinuria. He is scheduled for bronchoscopy with transbronchial lung biopsy in the morning. That evening he has a sudden deterioration consisting of massive hemoptysis and progressive renal failure. The most appropriate therapeutic intervention at this point would be supportive management and

A. IV corticosteroids
B. Antituberculous medications
C. IV cyclophosphamide 4 mg/kg
D. Oral cyclophosphamide 2 mg/kg
E. IV corticosteroids and IV cyclophosphamide 4 mg/kg