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A static or dynamic soiled airway can be extremely challenging during airway management. A clinician must always assume that any patient has the potential to vomit.The NAP4 study showed through a prospective observational study, that even seasoned anesthetist could not always predict which patients were at risk for aspiration during airway management. The risk factors for vomiting and aspiration in theatre describe our everyday patients in EMS. (1)

NAP4 Observation