Post-Op: atelectasis, pneumonia, UTI (? change Foley), phlebitis, CVP sepsis, wound infection, drug reaction, transfusion reaction, intraabdominal abcess, malignant hyperthermia, aspiration; Also: meningitis, sinusitis, cholecystitis (?acalculous with critical patients), infectious endocarditis, diverticulitis, peritonitis, cholangitis, perirectal abcess, septic arthritis, pulmonary embolus, DVT, cellulitis, pyelonephritis, PID, AP, neoplasm (leukemia, lymphoma, renal cell, hepatoma...), connective tissue diseases (SLE, RA, temporal arteritis...); Immunocompromised (fungal, viral, parasitic, bacterial, mycobacterial sources, HIV+, AIDS), thyroid storm, medications (antibiotics - penicillin, cephalosporins, procainamide, phenytoin...), hematoma, dead tissue, dental abscess
   Work-Up: WBC with diff, Blood Cx x 2, CXR, U/A + C/S, ?phlebitis. ?CVP sepsis, evaluate wounds and medications, ?LP, ?CT, culture and gram stain potential sources (sputum…), check all cultures and sensitives, ?sub-therapeutic Abx, consider fungal infection if receiving broad spectrum Abx, 2-D Cardiac ECHO, VQ scan, lower extremity venous dopplers, TFTs