Button battery vs coin ingestion

Button battery can mimic coin on Xray film. Hence be careful.

How to differentiate button battery from coin on Xray film:

= AP view: halo/ double rim effect

= Lateral view: step off effect (due to the negative terminal)

COMPARED TO X-RAY OF COIN INGESTION

Great flowchart to summarise management:
http://www.poison.org/battery/guideline.asp

Neonatal Resuscitation