A child presents with fever, stridor and barking cough. His X-ray is given below: Following is true about the patient:: (A) Symptoms are predominantly caused by involvement of subglottis, (B) Antibiotics should be started immediately, (C) X-ray is showing thumb sign, (D) Caused by H. influenzae b
Answer is A. (a) Symptoms are predominantly caused by involvement of subglottis(Ref. Cummings, 6th ed., 3049; Scott Brown, 8th ed., Vol 1; 326)