An emergency? You've got to be kidding me. At any rate, if you do ever have a true emergency, take the animal in question directly to the vets.
As for your question, do plenty of research. Dragons require large cages, lots of heat, and special lighting.
http://www.vandivers.com
http://www.dachiu.com/
those are both good sites to start with for care info.
Also, try
www.google.com and type in "bearded dragon care" and such to find good caresheets. When you've done plenty of reading, and have specific questions, then come back with those and people will be willing to help you. Do your homework first though.