In addition, drinking is more likely to cause peripheral vasodilation, making it harder for heat to be stored in the body
.
” In the case of ensuring their own safety, the rescue of hypothermia crowd can be more efforts, as long as there is a glimmer of hope should not give up
.
Then there is moderate temperature loss, and the core temperature is 28 ℃ – 32 ℃
.
Finally, it is difficult to save the severe loss of temperature, the core temperature came below 28 ℃
.
The result is that the hands and feet will get colder because of vasoconstriction, but they can maintain the internal needs of the body
.
Mild hypothermia: attention should be paid to avoid the surrounding muscle massage, the original peripheral low temperature blood back to the viscera will bring more damage
.
The most important thing is to remove the cause of temperature loss, and then to do different treatment according to different stages of temperature loss
.
Make sure to wear warm enough
.
This is the period when you may have heard of cold to abnormal undressing
.
Moderate and severe hypothermia has a certain protective effect on the body tissues, especially the brain nerves
.
Moderate and severe hypothermia: need to rely on active core heating resuscitation, such as warm isotonic fluid peritoneal lavage in medical places
.
Maybe you think losing temperature is far away from you, but in fact, there is another main reason for losing temperature and dying, which is a very common thing in life: drunkenness
.
The way to deal with cold is to reduce the loss of heat from the skin by the contraction of peripheral blood vessels which are easy to lose heat, and then increase the heat production of fat, muscle and liver under the influence of thyroxine and epinephrine, and start shivering and shaking to produce heat
.
When the temperature loss reaches a certain level, people will become sluggish
.
The first stage of hypothermia is compensatory period, or cold stress period
.
Change the wet clothes as soon as possible after the rain and wind
.
People who take part in outdoor cross-country sports should be alert to temperature loss and ensure safety while pursuing beyond the limit
.
For example, in this incident, the sudden bad weather, combined with running sweating and body contact with cold wind and cold water, caused heat convection and conduction heat dissipation, a lot of heat was lost from the skin and lungs, and the core temperature was difficult to maintain in the standard range
.
So you should enter the shelter as soon as possible and change into dry clothes
.
Hypotension and further decrease of temperature caused by large amount of hypothermic blood returning to circulation will increase the risk of resuscitation failure
.
2
.
At this time, consciousness gradually lost, and all kinds of reflections became dull
.
Compared with sweating, heat production and heat retention are passive, and adjustment is limited
.
From rapid heartbeat to arrhythmia
.
Because temperature loss is related to temperature, humidity and wind force
.
The second is mild temperature loss: the core temperature is further reduced to below 35 ℃ and above 32 ℃
.
And abnormal polyuria at this time
.
Unprofessional rescue may aggravate the harm to the body
.
1
.
When we are lack of clothing and shelter protection, we can’t maintain the core temperature in cold environment, and the temperature loss may occur, even in very cold environment
.
If they ignore the body alarm signal and mistakenly think it’s just “a little tired”, they think it’s OK to insist on it again, which may eventually lead to tragedy
.
3
.
Two days ago, a sudden bad news attracted the attention of the whole network: 21 people died in the Gansu cross-country marathon accident
.
Therefore, compensatory thermogenesis begins to increase heart rate and respiration, which will accelerate heart rate and respiratory rate
.
Because drunkenness can misjudge the external environment and lead to further loss of temperature and death
.
Source: Xinhua News Agency 2 temperature loss is very confusing and easy to be ignored
.
The key to this tragedy is a word that many people have never heard of: loss of temperature
.
Temperature loss is not very serious at the beginning
.
At this time, it’s hard to get out of trouble by oneself, and it’s in urgent need of outside help
.
It may appear a state similar to “suspended animation”: pupil dilation, no pain, slow heart rate and breathing, but actually people are still alive
.
Sometimes, under certain conditions, the risk of encountering temperature loss increases
.
It began to count as a medical definition of hypothermia
.
Familiar with the environment, understand the setting of supply point and call rescue mode
.
Unconscious, no chills, low blood pressure, slow heart rate until it stops
.
When doing outdoor hiking and cross-country running, it is often easy to ignore the alarm signal given by the body and just think about “sticking to it again”, which is also very dangerous
.
After the passive temperature heating, the active heating blanket and room temperature heating are carried out, and the room temperature is recommended to be 28 ℃
.
The mental state of the human body is completely normal, but it will feel a little cold
.
The core temperature at this time is above 35 ℃
.
Blankets and dry, heavy clothing, and hot food also help
.
From this stage of recovery, the human body will not suffer much damage
.
Death can only be declared when the temperature is close to normal
.
Abnormal undressing is a kind of “surrender” of the body’s regulatory mechanism
.
It really can’t last any longer
.
For example, the most important cause of death is the loss of temperature after drinking
.
It is very important to detect and identify the temperature loss in time and take measures quickly
.
In the absence of these conditions, possible rewarming methods should be tried, and transport should be carried out as soon as possible
.
Compensatory thermogenesis is still in progress, but it is no longer enough to maintain normal body function
Don’t stay in the cold environment for a long time
.
Muscle shivering and heat production are no longer going on
.
Photo source: CCTV news
.
It is difficult to ensure adequate oxygen supply for respiration and heartbeat
.
Warm clothes, breathable and weatherproof assault suits are needed
.
Again: drinking should be moderate, don’t believe that drinking can keep out the cold! Drinking can’t keep you warm! Sudden events in outdoor sports lead to death accidents caused by temperature loss, and there is a rising trend recently
.
So we need passive clothing and shelter from outside to help us resist the low temperature
.
The dilation of peripheral blood vessels, which always contracted, leads to the illusion of “warming up” for a short time
.
The human body began to have some strange situations, such as decreased judgment, unclear speech and uncoordinated movements
.
In addition, for the rescue of hypothermia, we need to work hard again
.
Sometimes the surface temperature can fluctuate, but the core temperature must be kept as stable as 37-37.5 ℃
.
If possible, they should be transferred to professional medical treatment places
.
The human body will fight against this hypothermia tenaciously through compensatory mechanism
.
Be familiar with the weather and prepare suitable clothes according to the weather
.
The occurrence of temperature loss is related to many factors, such as environment, body condition, heat supplement, exercise rhythm and so on
.
The core temperature of human body is fixed
.
On site rescue is mainly to do a good job of soft stretcher transfer
.
Temperature loss is also known as the number one killer of outdoor sports
.
Cold stress period: only need to keep temperature passively
.
This is also the reason why human beings gradually expanded from the tropical zone to the frigid zone in the process of evolution
.
What is temperature loss? How did it happen? Why does running lose its temperature when it’s so hot? Why can’t competitors save themselves after losing temperature? As more and more people are interested in outdoor sports, accidents occur frequently
.
be careful! Don’t try to heat limbs or drink hot water for moderate or severe hypothermia patients
.
Today, let’s talk about the terrible “temperature loss”
.
Head and neck are more likely to lose heat, especially to keep warm.
.
Take part in the competition, all kinds of compulsory safety equipment should not be ignored, this is not an extra burden
.
Only by mastering a certain degree of heat preservation ability, can we live in cold regions
.
After drinking and outdoor sports, especially pay attention to the prevention of temperature loss, which is a serious acute injury event, the key is prevention! In fact, it’s very simple to prevent the loss of temperature
.
Generally speaking, the lower the external temperature, the stronger the wind force and the higher the ambient humidity, the easier it is to lose temperature
.
When it is hot, it dissipates heat, and when it is cold, it produces heat to maintain heat
.
But just “wear more clothes” is not an absolute guarantee
.
So when exposed to low temperature environment, it will gradually lose temperature from light to heavy
.
In emergency medicine, there is a principle that patients with hypothermia should be rescued
.
Photo source: the rewarming treatment of zhanku Hailuo should follow the principle of mild grading and gradual progress
.