MEDICAL CAUSES
ARDS (Acute respiratory distress syndrome)
Airway obstruction
Anaphylaxis
Asthma (acute).
Chronic obstructive pulmonary disease.
Pneumonia (bacterial).
Pneumothorax.
Pulmonary edema.
Pulmonary embolus.


Tham khảo:
Ebook Professional guide to sign and symtoms 5th
http://www.nlm.nih.gov/medlineplus/e...ages/17279.htm