General Overview of The Condition of Hypothermia

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About this sample


Words: 769 |

Pages: 2|

4 min read

Published: Feb 12, 2019

Words: 769|Pages: 2|4 min read

Published: Feb 12, 2019

Hypothermia is a life threatening condition that may result in death. A drop in the core body temperature of less than 95 degrees F (35 degrees C). this temperature is below what is required for normal metabolism and bodily function. The normal body temperature is between 97.7 and 99.5 degree Fahrenheit (F) which is the same as 36.5-37.5 degrees Celsius (C). The body’s thermoregulation mechanism adjusts to weather changes.

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During extreme cold, the body receives a signal from sensory receptors. The signal will go up to the brain. The brain then sends a signal to the body to respond to the cool temperatures and attempts to maintain the core body temperature. This is necessary in order to provide the vital organs with the necessary heat to function properly. The brain will send a signal to the smooth muscle cells of the blood vessels of the skin and the skeletal muscles.

During the cold, the signal from the brain causes vasoconstriction of the arterioles in the skin which allows the body to shift the blood to more vital areas of the body. Another signal from the brain goes to the skeletal muscles which quickly contracts them causing shivering that helps to keep the body warm. If the body is exposed to cold and the thermoregulation mechanism is unable to preserve the heat, a drop in the core body temperature will occur. As the body temperature drops, characteristic symptoms will occur such as shivering and mental confusion.

Hypothermia can be mild, moderate, severe or profound. Heat is produced by the muscles, by the heart, as well as the liver and the body loses heat through the skin. The body heat increases 2-4 times more with contraction of the muscles from exercises or by shivering. Accurate core body temperature can be measured by a special low body temperature thermometer. Hypothermia may also be associated with frostbite.

Symptoms of hypothermia: depends on the degree of hypothermia:

  • Shivering
  • Blushed lips and extremities
  • Altered mental status due to decreased CNS electrical activity: such as confusion, poor judgment, etc.
  • Slowly the patient may lapse into an unconscious state.
  • Cold hands, feet or skin, shivering and teeth chattering or feeling cold does not necessarily mean you are experiencing hypothermia. Only a core body temperature below 95 degrees F indicates hypothermia.

Causes of hypothermia include:

  • Exposure to low temperatures
  • Alcohol use during exposure to cold.
  • Poor clothing
  • Trauma
  • Swimming or diving into cold water: heat is lost more in water than on land.
  • A patient who perform outdoor sports such as skiing or mountain climbing.
  • Patients who have had a major surgery
  • Excessive blood and fluid loss.

Alcohol consumption increase the risk of developing hypothermia does not help with the symptoms. Alcohol is a vasodilator and it increases the blood flow to the skin and extremities. Alcohol may make the patient feel warmer, however it increase the heat loss by vasodilation.

Elderly people are most prone to hypothermia since they are more fragile, lower in body fat content, are prone to worse outcome if they have cardiac history. Keep elderly individuals home and warm.

Children are also susceptible to hypothermia. Children have a smaller size and less body surface area. A child’s head is larger relative to the rest of their body and a lot of heat is lost through their heads. When outside is cold, make sure to cover the heads of children.

Paradoxical undressing: a large percentage of deaths occurs from hypothermia when the patient becomes confused and disoriented, they may remove their own clothing thinking they will feel better. When this occurs it only increases the rate of heat loss and the condition of hypothermia gets worse. The heart rate may slow in patients with hypothermia. It may be difficult to find a pulse, so keep trying. Hypothermia increases the heart’s need for oxygen and lethal cardiac arrhythmia may occur.

Hyperthermia is different from hypothermia. Hyperthermia occurs due to elevated body temperature that is present during heat exhaustion and heat strokes.


  • Immediate action is required
  • Move the patient from water and to a safe place.
  • Remove the wet clothing and wrap the patient with a warm, dry blanket.
  • Do not massage the patient
  • Do not apply dry heat
  • Warming of the patient should be done gradually.

Treatment at the hospital or in the field

  • Usually begin with warm blankets
  • Warm IV fluids
  • Warm humidified oxygen
  • EKG
  • Blood warmer


Any drop in body temperature will make a person feel cold.

If you begin to shiver during exposure to cold, this is the point where you should get out of the weather and warm up.

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Prolonged exposure to cold beyond this point can be dangerous and it is not a good idea to remain exposed to these cold temperatures.

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General Overview Of The Condition Of Hypothermia. (2019, February 11). GradesFixer. Retrieved June 21, 2024, from
“General Overview Of The Condition Of Hypothermia.” GradesFixer, 11 Feb. 2019,
General Overview Of The Condition Of Hypothermia. [online]. Available at: <> [Accessed 21 Jun. 2024].
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