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Non-freezing cold injuries (NFCI) is a class of tissue damage caused by sustained exposure to low temperature without actual freezing. [1] There are several forms of NFCI, and the common names may refer to the circumstances in which they commonly occur or were first described, such as trench foot, which was named after its association with trench warfare.
The thumb and index finger provide downward pressure on the mask while the remaining fingers maintain head tilt and jaw thrust. The free hand can then be used to provide ventilation via the bag. [21] For children, pediatric bags can be used. Pediatric bags have a valve that limits peak airway pressures to around 35–40 cm of water.
Cardiopulmonary resuscitation (CPR) is an emergency procedure consisting of chest compressions often combined with artificial ventilation, or mouth to mouth in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person who is in cardiac arrest.
Heat edema presents as a transient swelling of the hands, feet, and ankles and is generally secondary to increased aldosterone secretion, which enhances water retention. When combined with peripheral vasodilation and venous stasis, the excess fluid accumulates in the dependent areas of the extremities. The heat edema usually resolves within ...
Lightning injuries are injuries caused by a lightning strike. [4] Initial symptoms may include heart asystole and respiratory arrest. [1] While the asystole may spontaneously resolve fairly rapidly, the respiratory arrest is typically more prolonged. [1]
If foreign body aspiration is suspected, finger sweeping in the mouth is not recommended due to the increased risk of displacing the foreign object further into the airway. [21] For choking children less than 1 year of age, the child should be placed face down over the rescuer's arm. [21]
Itching, usually around the ears, face, neck, arms, and upper torso; Sensation of tiny insects crawling over the skin (formication) Mottled or marbled skin usually around the shoulders, upper chest and abdomen, with itching (cutis marmorata) Swelling of the skin, accompanied by tiny scar-like skin depressions (pitting edema) Neurologic Brain
These events are episodic, and when the episode subsides or the area is warmed, the blood flow returns and the skin color first turns red , and then back to normal, often accompanied by swelling, tingling, and a painful "pins and needles" sensation. All three color changes are observed in classic Raynaud's yet not all patients see all of the ...