First Aid - Thermo Scientific 722 Operating And Maintenance Manual

Model 700 Series -40C ________________________________________________________________________Appendix C
If a person seems to become dizzy or loses consciousness while working with liquid nitrogen or carbon dioxide, move to a well-
ventilated area immediately. If breathing has stopped, apply artificial respiration. If breathing is difficult, give oxygen. Call a
physician. Keep warm and at rest.
If exposed to liquid or cold gas, restore tissue to normal body temperature (98.6° F) as rapidly as possible, followed by protec-
tion of the injured tissue from further damage and infection. Remove or loosen clothing that may constrict blood circulation to the
frozen area. Call a physician. Rapid warming of the affected part is best achieved by using water at 108° F. Under no circumstance
should the water be over 112° F, nor should the frozen part be rubbed either before or after rewarming. The patient should neither
smoke nor drink alcohol.

First Aid

C - 1