8/5/2013

8/5/2013

 

Answers:
Populations at higher risk of foreign body aspiration include all of the following except.
A) Psychiatric patients
B) Children under 8 years old 
C) Patients with underlying neurological disease
D) Patients with underlying esophageal disease
E) Edentulous adults.

Children under 4 years old (not 8) are at highers risk of foreign body aspiration.

What is the most commonly ingested foreign body?

Coins. Nuts and seeds are the most commonly aspirated foreign bodies. Latex balloons are rarely aspirated but they have a particularly poor prognosis.

MC Question:
The preferred imaging modality for suspected foreign body ingestion is?

A) Posteroanterior CXR 

B) Posteroanterior and lateral plain films

C) Barium Swallow 

D) Chest CT

Free Response Question:
What is the classic appearance of a button battery on plain film?

Quick Facts:
 Complications of Foreign Body Ingestion/Aspiration

-Depends on object and duration present.
-Button batteries can cause mucosal erosion in as little as 6 hrs.
-Initial complications = cyanosis, resp distress, resp arrest/death.
-Ball valve effect can cause hyperexpansion of lung.
-If total occlusion of bronchi, lung may collapse.
-Late complications of airway foreign bodies include granulation tissue, PNA, empyema, bronchial fistula and pneumothorax.
-Esophageal foreign bodies, granulation tissue, mucosal erosions, esophageal perf, tracheoesophageal fistula, esophageal-aortic fistula and mediastinitis.