Medicine MCQs-8 : Frostbite

Snow blindness is produced by -

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Snow blindness is produced by ultraviolet (UV) solar radiation reflected from snow, ice, or water. It tends to be more common at high altitudes, where the air filtration of UV radiation is diminished.

Mildest form of peripheral cold injury is -

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The mildest form of peripheral cold injury is frostnip, which tends to occur in apical structures (nose, ears, hands, feet), where blood flow is most variable because of the richly innervated arteriovenous anastomoses.

“chunk of wood” sensation in the extremity is seen in -

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Frost bite - “chunk of wood” sensation in the extremity

Most imminent threat to life in cold injuries is -

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Systemic hypothermia - When hypothermia is identified, treatment should be instituted immediately with both passive and active rewarming measures

All of the following is non-freezing cold injury EXCEPT ?

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Local cold injuries may be divided into freezing (frostbite) and nonfreezing (chilblains and immersion [trench] foot) injuries.
Mildest form of peripheral cold injury is frostnip