mrcem2-0324

A 2-year-old girl presents with a hoarse cough. You suspect croup as the diagnosis. She has noticeable stridor when upset but none at rest and mild chest retractions are present. Her level of consciousness is normal, and her air entry is normal on chest examination, with no evidence of any crackles. Her SaO2 is 96% on air and does not decrease when upset.
What is this child’s Westley croup score?