The effect of chilling in refrigeration analgesia includes
For chilling analgesia (cryoanalgesia) CO2 or N2O is used. At such low temperatures there is inhibition of nerve conduction producing analgesia. Hypothermia decreases metabolic rate and oxygen consumption of tissue. Hypothermia inhibits the bacterial growth. Healing is also retarded at low temperatures.
Interference with conduction of nerve impulse
Reduction of metabolic rate and oxygen requirement
Inhibition of bacterial growth and infection
All of the above
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