Which of the following is the agent of choice for cryosurgery?
a) Nitrous oxide
b) CO2 snow
c) Liquid nitrogen spray
d) Freons
Correct Answer - C
This has a temperature of -196 c(spray/probe) & the only cryogen advocated for malignant
skin lesions.
Ref: Textbook of dermatosurgery & cosmetology, satish S savant, E-2,P-117