<prompt> Which of the following is not a risk factor for postoperative pulmonary complication?BMI 30Upper abdominal surgeryPatient with 7 pack years of smokingAge 70 Years  <response>: Ans. C Patient with 7 pack years of smokingRef: Millers Anesthesia 8th Ed; Page No- 1114Postoperative Pulmonary ComplicationsPatient-RelatedHistory of Cigarette smoking exceeding 40 pack-years.Alcohol useAge 70 years or moreASA-PS class 2BMI of 30 or moreCOPDHeart failureDeliriumProcedure-RelatedThoracic surgery: Postoperative pulmonary complications develop in 5 to 10 of patients undergoing non-thoracic surgery and in 22 of high- risk patients.Abdominal surgeryVascular surgeryUse of general anesthesia: Planned general anesthesia especially with endotracheal intubationNeurosurgeryHead and neck surgeryLaboratory Test-Related:Albumin concentration less than 35 gdLBUN level 7.5 mmolL 21 mgdLAbnormal CXR 