16th February 2025

A 32-year-old lady has been in hospital for four days with acute asthma and, for the last 24 hours, has been on her usual asthma treatment, with ongoing oral prednisolone 40 mg daily.

A 32-year-old lady has been in hospital for four days with acute asthma and, for the last 24 hours, has been on her usual asthma treatment, with ongoing oral prednisolone 40 mg daily. 

At home, her best peak expiratory flow rate (PEFR) is 390 L/min.

What PEFR results would best indicate that she is ready for discharge?

Select the SINGLE most appropriate option from the list below. Select ONE option only.