Jill Grimes, MD, shares her opinions about all things medical, breaking down complex clinical issues into common sense explanations. Please use this information to fuel discussions with your family physician and other health care providers! *However, this blog is for informational purposes only, and should not be considered medical advice, as you (the reader) hereby agree that there is no physician-patient relationship.
Showing posts with label frostbite. Show all posts
Showing posts with label frostbite. Show all posts
Thursday, February 20, 2014
"Don't Let the Frostbite BITE"
Who doesn't love FROZEN? Our family can't stop singing the award-winning songs from Disney's latest musical hit, so I couldn't resist borrowing a line for my blog title today...However, frostbite is no laughing matter, and with the record low temperatures we have had this year, I thought I should say a few words about this cold weather danger.
What is frostbite?
Frostbite occurs when ice crystals literally form within the tissue in our fingers and toes and noses, damaging and often completely destroying the cells in the skin. Frostbite shows up when it the thermometer reads in the negative in Celcius or below minus 17 in Fahrenheit. Remember, though, that wind chill can push the "real" temperature below the numbers you see on your favorite weather app!
Risk factors besides the extremely low temperatures include alcohol use, smoking, diabetes, previous cold injury, low calorie intake, lean body mass and history of Raynaud's phenomenon (where the blood supply to the hands gets restricted and your hands turn red/purple and ache terribly.)
What are the signs and symptoms?
Frostbite manifests as very painful, severely cold, and initial white and numb areas that progress to blotchy, swollen redness in the tip of your nose or the ends of your fingers and toes. While the affected areas hurt, they are also typically numbed (you can't feel someone touching the end of your finger/toe, but you have pain in that area). With second and third degree frostbite, blisters and "blood blisters" appear, and in fourth degree frostbite there is actual gangrene (rotten, dead tissue).
PREVENTION is KEY
Dress your core in LAYERS, cover all exposed areas, avoid alcohol (or any drugs that can alter mental status), and stay inside if the temperature is below negative 10*. HOWEVER, be aware that if you try to layer socks or gloves, you may end up with excessively tight, constrictive layers that can actually make you MORE likely to get frostbite. Also, remember to remove rings (fingers and toes) before skiing or other cold weather activities.
What is the Treatment?
Remove any jewelry if present. Immerse the affected areas in warm water and take NSAIDS (ibuprofen) and quickly SEEK MEDICAL CARE. Do NOT rub affected areas, as this may actually increase tissue damage.
BOTTOM LINE: Watch the temperatures, especially if you are traveling to an area that is much colder than you are used to experiencing, and make sure you have gloves, socks, and face gear that is made for sub-zero weather challenges if you plan to be outdoors in below zero weather!
Tuesday, January 11, 2011
BRR! Frostbite!

Recently our family had the occasion to be in gorgeous Crested Butte, CO. While typically the days "warm up" to the 20's and provide fabulous skiing weather, with fresh powder and sunny skies, we happened to hit a couple days with severely cold weather. Note that the picture shows my car's dashboard reflecting a MINUS 20 degrees outside!
With that in mind, I'd like to talk a bit about FROSTBITE. Frostbite shows up when it the thermometer reads in the negative in Celcius or below minus 17 in Fahrenheit. One day we foolishly thought we'd ski when it was "only" a couple degrees below zero, but the wind chill took it cold enough that the slopes were empty and the lift signs all sported frostbite warnings!
What are the signs and symptoms? Pain, severe cold, redness, and did I mention PAIN? Typically it occurs in extremities- fingers, toes, and noses. Ice crystals literally form within the tissue, and this can damage and even kill the cells in the skin.
Risk factors include temperature below minus 17, alcohol use, smokers, previous cold injury, low calorie intake, lean body mass and history of Raynaud's phenomenon (where the blood supply to the hands gets restricted and your hands turn red/purple and ache terribly.)
PREVENTION: Dress in LAYERS, cover all exposed areas, avoid alcohol (or any drugs that can alter mental status), and AVOID ELECTIVELY GOING OUTSIDE WHEN IT IS TOO COLD!
Treatment: Immerse in warm water and take NSAIDS (ibuprofen) and SEEK MEDICAL CARE. Do NOT rub affected areas, as this may actually increase tissue damage.
BOTTOM LINE: Watch the temperatures, especially if you are traveling to an area that is much colder than you are used to experiencing, and make sure you have gloves, socks, and face gear that is made for sub-zero weather challenges if you plan to be outdoors in below zero weather!
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