Frostbite is the damage to tissues from freezing ;The blood vessels contract and cause loss of oxygen to the affected body parts.And results formation of ice crystals within cells, rupturing the cells and leading to cell death.
It most commonly affects areas that are further away from the body core and have less blood flow. These include your feet, hands, nose, and ears.
There are three degrees of cold injury: frostnip, superficial frostbite, and deep frostbite.
The affected skin may be slightly flushed. The skin changes to white or grayish yellow as the frostbite develops. Pain is sometimes felt early but subsides later. Often there is NO pain; the part being frostbitten simply feels intensely cold and numb.
In superficial frostbite, there will be an area that looks white or grayish and the surface skin will feel hard but the underlying tissue will be soft. With deeper involvement, large blisters appear on the surface, as well as in underlying tissue, and the affected area is hard, cold and insensitive. Destruction of the entire thickness of the skin will necessitate skin grafting and will constitute a medical emergency, because gangrene may result from loss of blood supply to the injured part.
Custom Search
Popular Posts
-
W ind --- pneumonia, atelectasis at 1st 24- 48 hours W ater --- urinary tract infection at Anytime after post op day 3 W ound --- wound ...
-
Raccoon Eyes. Ecchymosis in the periorbital area, resulting from bleeding from a fracture site in the anterior portion of the skull base. Th...
-
Lymph Nodes : The major lymph node groups are located along the anterior and posterior aspects of the neck and on the underside of the jaw. ...
-
Fournier's gangrene is a rare condition and delayed treatment results in fatal outcome. We managed a case of Fournier's gangrene by...
-
Viewed posteriorly the right kidney has its upper edge opposite the 11th dorsal spine and the lower edge of the 11th rib. Its lower edge is ...
-
If you are palpating a swelling like an abdominal swelling infront of the aorta, You have to decide whether the mass you feel is pulsatile/e...
-
The sphenoid bone carries its share of creating part of the base of the cranium. While it can be seen laterally and inferiorly, the shape of...
-
Look at how your jaw ends up when saying first syllable of 'Lateral' or 'Medial' : - "La" : your jaw is now open ...