Respiratory
8 Minutes
Chloe Evans, 26 yo (Emergency Department)
Acute Exacerbation of Asthma / Dyspnoea
Candidate Instructions: Chloe Evans, 26, presents to Acute Admissions with acute breathlessness and wheezing after an upper respiratory infection. Take a focused history, assess asthma severity, and explain immediate steps.
Examiner Marking Checklist
Severity Assessment
- ✓ Assess speech: Complete sentences vs short phrases vs monosyllabic
- ✓ Inquire about peak expiratory flow (PEF) percentage baseline
- ✓ Past ITU admissions or intubations for asthma
- ✓ Current oral steroid use or frequent rescue inhaler usage
Trigger & Symptom History
- ✓ Preceding viral coryzal symptoms, fever, sore throat
- ✓ Allergen exposure (pets, pollen, dust, occupational)
- ✓ Nocturnal cough and diurnal peak flow variation
- ✓ Chest tightness and sputum colour
Critical Red Flags
- ⚠ Silent chest on auscultation (life-threatening asthma)
- ⚠ Cyanosis, exhaustion, altered mental status, or bradycardia
- ⚠ PEF < 33% of predicted or personal best
Post-Station Examiner Questions
Examiner: "What are the criteria for life-threatening asthma in an adult?"
Model Answer: Silent chest, cyanosis, poor respiratory effort, PEF < 33%, SpO2 < 92%, exhaustion, confusion, or normal/elevated PaCO2 on ABG.
Practise this patient scenario with real-time conversational voice simulation.
Practise This Case with Virtual Patient →