Reliability of prehospital patient classification in helicopter emergency medical service missions

BMC Emergency Medicine

Table 1 ASA-PS distribution of four patients as recorded by 42 physicians and paramedics in HEMS database

*Patient type*	ASA I	ASA II	ASA III	ASA IV	ASA V	ASA not known	ASA missing
Cardiac arrest	4	24	6	0	1	7
Major trauma	32	5	0	0	1	3	1
Paediatric seizures	6	21	14	0	0	1
Drug abuse, unconscious	15	15	4	1	0	7

ASA I “A normal healthy patient”, ASA II “A patient with a mild systemic disease”, ASA III “A patient with a severe systemic disease”, ASA IV “A patient with a severe systemic disease that is a constant threat to life”, ASA V “A moribund patient who is not expected to survive without the operation”

ISSN: 1471-227X