Neutrophil count below which there is increased risk of nosocomial invasive pulmonary aspergillosis -

Ans. is 'd' i.e., < 1000-500/RL Invasive aspergillosis is a severe respiratory infection with a moality rate of over 90% in neutropenic patients.It is most often encountered in patients with absolute neutrophil counts of <500/4 from leukemia or chemotherapy.Patients undergoing bone marrow transplantation are susceptible to a greater extent than patients with hea, kidney, or liver transplants.