Hourihan et al developed criteria that can be used to call a Medical Emergency Team (MET) to care for a hospital inpatient.


Indications for calling the medical emergency team - one or more of the following:

(1) cardiopulmonary arrest

(2) acute changes in vital signs

(3) threatened airway

(4) respiratory rate < 5 (hypopnea) or > 36 (tachypnea) breaths per minute

(5) pulse < 40 (bradycardia) or > 120 (tachycardia) beats per minute

(6) decrease in Glasgow Coma Score (GCS) 3 or more points:

(GCS baseline) - (current GCS) >= 3

(7) systolic blood pressure < 90 mm Hg

(8) seizures that are repeated or prolonged

(9) any other reason for serious concern



• The cutoffs for respiratory rate and pulse would be age-dependent, with the above criteria suitable for adult inpatients.


To read more or access our algorithms and calculators, please log in or register.