Table 1

 Category of patient by diagnosis or destination

Diagnosis or destinationNumber of patients
COPD, chronic obstructive pulmonary disease; LVF, left ventricular failure.
Appropriate alerts
    Cardiac arrest4
    Respiratory arrest2 (1 paediatric)
    Status epilepticus1 (paediatric)
    Left ventricular failure3
    Cerebrovascular accident2
    Myocardial infarction1
    Severe COPD1
Inappropriate alerts
    Lower respiratory tract infection1
    Moderate LVF1
    Moderate exacerbation of asthma1 (paediatric)
Needed alerting (but were not)
    Cardiac or respiratory arrest0
    Status epilepticus1
    Myocardial infarction8
    Shock and abdominal pain1
    Stridor2 (paediatric)
    Severe overdose3 (1 paediatric)
    Life-threatening asthma2 (1 paediatric)
    Intensive care unit1
    Transferred for definitive care1
    Died in department3