Registered Nurses' Association of Ontario

Nursing Best Practice Guidelines

Indicators of Acceptable Asthma Control
Parameters Frequency/Value
Daytime symptoms < 4 times/week
Night-time symptoms < 1 time/ week
Need for short acting beta2 agonist < 4 times/ week
Physical activity Unaffected
Exacerbations Mild, infrequent
Work/school absence none
FEV1 or PEF rate > 85% personal best
PEF diurnal variation < 15% variation

Adapted from Canadian Asthma Consensus Report (1999, 2001)
If any one parameter exceeds the described frequency/value, then the client may have uncontrolled asthma.