Pulmonary embolism,”Thrombi in the lungs –> increased pulmonary vascular resistance/pressure –> Increase RV pressure –> Acute cor pulmonaleHypoxemia –> TachypneaPresentation: Dyspnea, pleuritic chest pain, cough, tachypnea, rales, tachycardiaABG: Low PaO2
low PaCO2 (from hyperventilation) –> Respiratory alkalosisRF-Pregnancy-Estrogen (OCP)PE complications-Recurrent PE-Pulmonary HTNMost are secondary to DVT above the knee (e.g. iliofemoral DVT)UE DVT –> PE is common in IV drug users”