- Clinical grades of stridor.

Clinical grades of stridor.

1.Grade 1 (Exertional stridor) :
Stridor appears during crying or exercise.
2.Grade 2 (Continuous stridor or stridor at rest) : 
Stridor is present at rest & become worse with exertion.
 3.Grade 3 (Stridor with retractions) : 
Stridor is continuous & accompanied with suprasternal& supraclavicular retractions. The patient looks anxious, irritable, struggling for breathing.
4.Grade 4 (Stridor with cyanosis) :
 In addition to continuous stridor & retractions, cyanosis& altered consciousness occur denoting severe respiratory failure. ET intubation may be considered.