Peds - Croup

Question 1

Characteristic symptoms of croup?

Answer 1

Distinctive barky coughs
Inspiratory stridor
<1 y/o

Question 2

Most common form of croup?

Answer 2

Laryngotracheobronchitis or viral croup caused by either parainfluenza virus or RSV

Question 3

Rx croup?

Answer 3

Improve air exchange with nebulized epinephrine and corticosteroids

Question 4

Imaging findings in croup on soft tissue neck X-ray?

Answer 4

Steeple sign (AP neck radiographs) - uniform narrowing of the subglottic airway (tapering of upper trachea)
Subglottic edema and narrowing on lateral soft tissue radiograph -> important to demonstrate normal epiglottis (exclude epiglottitis -> thumb sign); also can exclude retropharyngeal abscess
Distention of hypopharynx

Question 5

CXR findings in group?

Answer 5

Usually normal; can be used to r/o foreign body

Question 6

DDx - croup?

Answer 6

Tracheal foreign body aspiration
Esophageal foreign body aspiration
Retropharyngeal abscess
Epiglottitis