Hypothermia is defined as a body core temperature below 35.0 °C (95.0 °F) in humans. Symptoms depend on the temperature. In mild hypothermia, there is shivering and mental confusion. In moderate hypothermia, shivering stops and confusion increases.
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Hypothermia is a 2012 American independent horror film written and directed by James Felix McKenney. It stars Michael Rooker , Blanche Baker , Greg Finley , Don Wood and Amy Chang.  The film centers on a family out ice fishing only to discover that something deadly is stalking them from the icy waters.
Hypothermia is a condition when a person is so cold that the body temperature drops below normal. Hypothermia is any body temperature lower than 35.0 °C (95.0 °F). Someone with hypothermia starts shivering and cannot stop. The person then becomes confused and acts strange. Their words don't make sense and they may be clumsy.
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Targeted temperature management previously known as therapeutic hypothermia or protective hypothermia is an active treatment that tries to achieve and maintain a specific body temperature in a person for a specific duration of time in an effort to improve health outcomes during recovery after a period of stopped blood flow to the brain. This is done in an attempt to reduce the risk of tissue injury following lack of blood flow. Periods of poor blood flow may be due to cardiac arrest or the block
Targeted temperature management may be used in the following conditions
Possible complications may include: infection, bleeding, dysrhythmias and high blood sugar. One review found an increased risk of pneumonia and sepsis but not the overall risk of infection. Another review found a trend towards increased bleeding but no increase in severe bleeding. Hypothermia induces a "cold diuresis" which can lead to electrolyte abnormalities - specifically hypokalemia, hypomagnesaemia, and hypophosphatemia, as well as hypovolemia.
The earliest rationale for the effects of hypothermia as a neuroprotectant focused on the slowing of cellular metabolism resulting from a drop in body temperature. For every one degree Celsius drop in body temperature, cellular metabolism slows by 5–7%. Accordingly, most early hypotheses suggested that hypothermia reduces the harmful effects of ischemia by decreasing the body's need for oxygen. The initial emphasis on cellular metabolism explains why the early studies almost exclusively ...
There are a number of methods through which hypothermia is induced. These include: cooling catheters, cooling blankets, and application of ice applied around the body among others. As of 2013 it is unclear if one method is any better than the others. While cool intravenous fluid may be given to start the process, further methods are required to keep the person cold. Core body temperature must be measured to guide cooling. A temperature below 30 °C should be avoided, as adverse events ...
Hypothermia has been applied therapeutically since antiquity. The Greek physician Hippocrates, the namesake of the Hippocratic Oath, advocated the packing of wounded soldiers in snow and ice. Napoleonic surgeon Baron Dominique Jean Larrey recorded that officers who were kept closer to the fire survived less often than the minimally pampered infantrymen. In modern times, the first medical article concerning hypothermia was published in 1945. This study focused on the effects of hypothermia on pat
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Definition: Core Temperature <35°C
1. Unintentional hypothermia (core cooling <35°C) is associated with significant morbidity and mortality. Roughly 1500 persons die of accidental hypothermia in the US annually. 2. Despite the high mortality associated with pre-hospital arrest, well-directed treatment can result in complete neurologic recovery in the hypothermic patient. 3. 50% who die of hypothermia are >65 years old 4. Risk of cardiac arrest increased with temperature <32°C, as stable cardiac rhythms can quickly degenerate i...
Causes of Hypothermia
1. Increased heat loss 1.1. Environmental exposure 1.1.1. Avalanche victims 1.1.2. Homeless population 1.1.3. Elderly patients → particularly low income during winter months 1.1.4. Submersion injuries 1.2. Induced vasodilation 1.2.1. Drugs 1.2.2. Carbon monoxide 1.2.3. Alcohol intoxication 2. Decreased heat production 2.1. Endocrine 2.1.1. Hypopituitarism 2.1.2. Hypothyroidism 2.1.3. Hypoadrenalism 2.1.4. Hypoglycemia 2.2. Neuromuscular inefficiency 2.2.1. Extremes of age 2.2.2. Impaired shiv...
1. Generalized 1.1. Hypothermia 2. Freezing 2.1. Frostbite 3. Non-freezing 3.1. Trench foot 3.2. Chilblains(Pernio) 3.3. Cold panniculitis 3.4. Cold urticaria 3.5. Polar thighUse low-reading thermometerCheck blood glucose as can be very high in DM or CVAor low when metabolized to keep warmPotassium >10-12 mEq/L not compatible with lifeCoagulopathy: clotting factor activity and platelet function significantly reduced at temperature < 34°C
1. Handle patient gently 2. V-fibmay be induced by rough handling of patient due to irritable myocardium (anecdotal)
1. Hypothermiacauses leftward shift of oxyhemoglobin dissociation curve 2. Intubation 3. Intubate gently 4. if RSIis given medications may act at a slower rate
1. Patients are also hypovolemic since hypothermiacauses impaired renal concentrating ability, in turn causing cold diuresis 2. Patients are prone to rhabdomyolysisand will need hydration 3. Intravascular volume is lost due to extravascular shift 4. NS preferred over LR as cold liver poorly metabolizes LRRhythms can quickly degenerate into unstable rhythmsBe careful when inserting guidewires, persistent shocks can degenerate fib into asystoleStandard ACLSguidelines may not apply:Any organized rhythm should be assumed to be perfusing the patient adequately
Deep hypothermic circulatory arrest (DHCA) is a surgical technique that induces deep medical hypothermia.It involves cooling the body to temperatures between 20 °C (68 °F) to 25 °C (77 °F), and stopping blood circulation and brain function for up to one hour.
Hyperthermia, also known simply as overheating, is a condition where an individual's body temperature is elevated beyond normal due to failed thermoregulation.The person's body produces or absorbs more heat than it dissipates.
Signs and symptoms. The typical signs of malignant hyperthermia are due to a hypercatabolic state, which presents as a very high temperature, an increased heart rate and abnormally rapid breathing, increased carbon dioxide production, increased oxygen consumption, mixed acidosis, rigid muscles, and rhabdomyolysis.