Peak Expiratory Flow Rate (PEFR)

Breathing · Medicine · 10–20 min

Bedside spirometric assessment of large-airway obstruction.

Indications

  • Asthma monitoring
  • Acute severity assessment

Contraindications

  • Recent MI
  • Pneumothorax
  • Unable to cooperate

Equipment

  • Peak flow meter
  • Disposable mouthpiece

Positioning

  • As appropriate for the procedure and patient comfort.

Consent

  • Explain indication, benefits, alternatives
  • Explain risks & complications
  • Obtain written/verbal consent as per SOP
  • Document consent

Universal precautions

  • Hand hygiene
  • PPE — gloves, mask, eye protection
  • Aseptic technique
  • Sharps safety
  • Verify patient identity & site

Step-by-step (0/4)

Tap to complete

1. Position

Standing, deep breath in.

2. Seal & blow

3. Best of three

4. Compare

Immediate complications

  • Cough, syncope (rare)

Post-procedure observation

  • Vitals q15min × 1h then hourly

Monitoring

  • Site inspection
  • Symptom review

Documentation

  • Procedure note
  • Consent
  • Findings

Patient instructions

  • Report pain, bleeding, fever, worsening symptoms

Educational bedside guide. Perform only under supervision until competent. Follow local SOPs and consent policy.

WardRound

WardRound

Clinical Decisions in Seconds