A client is experiencing an acute asthmatic attack. Prior to treatment with levalbuterol, respirations were 40 breaths/min, pulse 132 beats/min, oxygen saturation 86% on room air, and with audible wheezing. Which findings indicate achievement of the desired outcome of asthma treatment?

1. decreased peak expiratory flow (PEF) rate
2. wheezing inaudible with diminished breath sounds
3. pulse 96 bpm and SpO2 92% on room air
4. inspiratory cycle twice as long as the expiratory cycle