“…In particular, the choice of the appropriate technique is related to several factors: (1) doorway, (2) chemical composition, and (3) supposed location inside the body, such as the upper aerodigestive tract or other specific regions. [15][16][17] Inhaled and Ingested FB Accidental penetration of FB in the oral and nasal cavities is uncommon. Indeed, even in emergency such as a fullwidth frontal crash, conscious subjects tend to clamp their mouth to prevent penetration.…”