TOPICS: V/Q mismatch, infinity, hypoxemia, tachypnea, respiratory alkalosis, 100% O2, bacterial embolism, septic pulmonary embolism, bacterial endocarditis, air embolism, divers, decompression sickness, hyperbaric oxygen, iatrogenic, central lines, fat embolism, long bone fractures, liposuction, petechial rash, neurologic changes, amniotic fluid embolism, disseminated intravascular coagulation, thrombus, DVT, pleuritic chest pain, hemodynamic instability, S1Q3T3, pulseless electrical activity, enoxaparin, unfractionated heparin, sequential compression devices, ambulation