A pulmonary embolism is the sudden blocking of an artery in a lung,
usually by a blood clot.
Symptoms are a sudden onset of chest pain & shortness
of breath, coughing, & fever.
Treatment is by anticoagulant drugs (e.g. Warfarin,
Heparin) given intravenously in hospital.
It occurs more often in patients who have the antiphospholipid
antibody, or lupus anticoagulant.