Pulmonary embolism clinical features The characteristic symptom of pulmonary embolism issudden breathlessness. Indeed, relatively few processescause such sudden dyspnoea.Lateral, usuallybasal, pleuritic chest pain and haemoptysis develop sometime after the onset of breathlessness, and are only clinicalfeatures if infarction has occurred. The haemoptysis consistsof frank red blood without sputum. In addition to respiratorysymptoms there may be […]