Most common organism to cause OPSI: (A) Streptococcal pneumonia, (B) H. influenza, (C) Mycobacterium TB, (D) Babesia
Answer is A. Ans (a) Streptococcal pneumoniaRef Sabiston page 1568/20th edition* 50-90% cases of OPSI is due to streptococcal pneumonia.* PPV23 vaccine is given nowadays 2 weeks prior to elective surgery