Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/16/2025

Discharge Criteria for Asthma Patients

Clinical Stability Requirements

  • Asthma patients should be discharged from hospital only when their symptoms have stabilized or returned to normal function, with peak expiratory flow (PEF) >75% of predicted or best value, diurnal variability <25%, and no nocturnal symptoms 1, 2, 3
  • Patient should have been on discharge medication for at least 24 hours before leaving the hospital 1, 4
  • Inhaler technique must be checked and documented prior to discharge 1, 4
  • PEF should be >75% of predicted or personal best value 1, 2, 4
  • PEF diurnal variability should be <25% 1, 4
  • No significant nocturnal symptoms should be present 2, 3
  • Respiratory rate and other vital signs should have normalized (respiration <25 breaths/min, pulse <110 beats/min) 1, 4

Medication Preparation

  • Nebulizers should be replaced by standard inhaler devices 24-48 hours before discharge unless the patient requires a nebulizer at home 2, 3
  • Treatment with inhaled steroids must be started at least 48 hours before discharge 2, 3
  • Patient should be prepared to leave with inhaled steroids at a higher dosage than before admission 2, 3
  • Patient should be prepared to leave with inhaled β-agonists for use as needed 2, 3

Self-Management Tools

  • Patient must have their own PEF meter and be taught how to use it 1, 3, 4
  • A written self-management plan must be provided, including when to increase treatment, when to call their doctor, and when to return to the hospital 1, 3, 4

Follow-up Arrangements

  • Follow-up with primary care physician should be arranged within 1 week of discharge 1, 3, 4
  • Hospital follow-up with a respiratory physician should be scheduled within 4 weeks 1, 3, 4

Special Considerations

  • If the patient is on oral xanthines, blood theophylline concentrations should be monitored before discharge 3
  • The circumstances of admission should be investigated to identify and address any avoidable precipitating factors 2, 3

Common Pitfalls to Avoid

  • Failing to provide a written self-management plan significantly increases risk of relapse 3, 5
  • Inadequate corticosteroid dosing at discharge can lead to symptom recurrence 2, 3
  • Not checking inhaler technique before discharge can result in medication delivery issues 1, 4
  • Overlooking follow-up arrangements can lead to gaps in care continuity 3, 5

REFERENCES

5

Discharge Instructions for Asthma Patients Treated for Pneumonia [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025