This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Frost bite is treated by 
Select and explain. 
A. Rapid rewarming, B. Slow rewarming, C. IV pentoxyphiline, D. Amputation
B: Slow rewarming
Answer: B: Slow rewarming 
Explanation: • Frostbite injuries affect the peripheries in cold climates.
• The initial treatment is with slow rewarming in a bath at 42 °C.
• The cold injury produces delayed microvascular damage.
• Level of damage is difficult to assess.
• Surgery usually does not play a role in its management, until there is absolute demarcation of the level of injury.