Acute graft rejection occurs within?: (A) Few minutes, (B) Few hours, (C) < 6 months, (D) 6-12 months
Answer is C. Hyperacute rejection: type 2 HSR, happens over span of few minutes to hours. Eg: kidney transplant Acute rejection: Few weeks to months(< 6 months) Chronic rejection: After 6 months. Graft vs host disease (Runt Disease): Acute GVH: < 100 days Chronic GVH: > 100 days