Children between 6 months and 3 years of age often get find themselves struggling with a foreign body in the respiratory tract. Symptoms are spasmodic coughing and sudden stridor in both inspiratory and expiratory.
A chest X-ray in inhalation and maximum exhalation and a fiberoptic nasopharyngoscopy should be performed. It is important to remove the foreign body.
Source: Mediserve‘s Medical Emergencies in Pediatrics.