Hypothermia is a life-threatening condition where the core body temperature falls below 35°C and affects the functioning of the body. In severe cases, hypothermia can result in organ failure and death if it is not given immediate attention. Identifying the early warning signs of hypothermia and knowing the process it goes through are important for avoiding any serious health effects. This CPR First Aid guide discusses how to recognize hypothermia signs, the progression of the condition, and how to give the proper first aid interventions to administer in a crisis.
What Is Hypothermia?
Hypothermia is a medical emergency in which the body loses heat more quickly than it can generate, resulting in the core temperature falling below 35°C (95°F). It usually results from exposure to cold weather or cold water for a prolonged period. Hypothermia impacts different body systems, weakening the heart, breathing, and nervous system, and may cause unconsciousness, organ failure, and death if not treated.
Stages of Hypothermia
Hypothermia is divided into stages according to the severity of the drop in body temperature. The hypothermic stages assist in determining the proper response:
- Mild Hypothermia: Core body temperature ranging from 32°C to 35°C.
- Moderate Hypothermia: Core body temperature ranging from 28°C to 32°C.
- Severe Hypothermia: Core body temperature less than 28°C.
Stage 1 – Mild Hypothermia Symptoms
In mild hypothermia, the temperature of the body dips slightly below normal, and one experiences palpable symptoms that are usually controllable with prompt action.
Symptoms of Mild Hypothermia
- Shivering: The body’s response to try to produce heat by muscle activity.
- Pale Skin: The vasoconstriction of the blood vessels close to the skin surface to retain body heat.
- Fast Breathing: The body attempts to make up for the loss of oxygen due to cold air-induced respiratory changes.
Here, shivering is the most frequent symptom since the body’s automatic reaction to cold is the production of heat by muscle contractions. Shivering can cease once body temperature cools down further, indicating a more critical stage of hypothermia.
Stage 2 – Moderate Hypothermia Symptoms
As hypothermia advances, the signs worsen, and the body functions begin to slow down. This phase is in need of immediate medical intervention.
Symptoms of Moderate Hypothermia
- Confusion: Altered mental function due to decreased brain temperature.
- Slurred Speech: Inability to communicate properly as the motor functions of the body are impaired.
- Slowed Pulse: Heart rate slows down as the body attempts to save energy.
- Clumsiness: Loss of coordination as a result of slowed motor function.
- Slowed Breathing: A decrease in the rate of breathing as metabolic functions of the body weaken.
The individual at this phase might also show signs of disorientation, confusion, and lethargy. First aid and rewarming immediately are important to avoid further progress of the condition.
Stage 3 & 4 – Severe Hypothermia Warning Signs
Severe hypothermia is an emergency and may result in death, for which immediate treatment is necessary. The core temperature of the body has decreased to a dangerous extent, and the body functions are shutting down.
Symptoms of Severe Hypothermia
- Hallucinations: Brain function starts deteriorating, and delusions and confusion set in.
- Paradoxical Undressing: At the stage of severe hypothermia, people tend to undress, not realizing that they are in danger.
- Unconsciousness: One becomes unconscious as the body systems shut down.
- No Vital Signs: Breathing and pulse can completely stop at extreme temperatures.
- Fixed Dilated Pupils: The pupils are no longer responsive to light, an indicator of extreme brain dysfunction.
Severe hypothermia needs immediate emergency medical treatment. The victim is most at risk of death at this point and can only survive if intervention happens rapidly and through quality medical treatment.
Why Early Recognition Matters
Early identification of hypothermia is important in avoiding its progression to advanced stages. The earlier the symptoms are identified, the better the reaction will be. Delay in acting will result in permanent damage to vital organs and risk complications in the form of heart failure, kidney failure, or death.
Recognising the symptoms of hypothermia in its early stages can significantly improve survival chances. This is why it is important to be aware of the symptoms, especially when exposed to cold temperatures for prolonged periods.
First Aid Steps for Hypothermia Symptoms
If you suspect that a person is hypothermic, it is important to move rapidly to stabilize his or her condition. The subsequent first aid steps should be done according to the stage of hypothermia.
Step 1: Reseat the Person in a Warm Place
The initial step is to take the person away from the cold and into a warm place. If you can, bring them inside your home or to a shelter where the ambient temperature is higher.
Step 2: Rewarming Methods
- Passive Rewarming: Use body heat, warm clothes, and blankets to slowly increase the individual’s temperature.
- Active Rewarming: For moderate or severe situations, immerse the individual in warm (not hot) water or apply a heat pad or warm packs. Be careful not to overheat.
Step 3: Offer Warm, Non-Alcoholic Beverages
If the individual is conscious and can swallow, provide warm, sweet drinks. Do not give alcohol, as this makes the body lose heat more quickly.
Step 4: CPR (If Needed)
If the individual is unconscious and not breathing, begin CPR at once. Continue CPR until emergency personnel arrive or the individual starts to recover.
FAQs
How Do I Know if a Person Has Hypothermia?
Check for typical signs of shivering, pale skin, confusion, slurred speech, or becoming very tired. If someone develops these signs after exposure to cold temperatures, hypothermia is likely.
What Is the Temperature of Hypothermia?
Hypothermia happens when the temperature of the body core falls below 35°C. Severe hypothermia happens when the temperature falls below 28°C.
When to Call Emergency Services?
You will need to phone emergency services at once if the individual is unconscious, lacks a pulse, or if signs of hypothermia are extreme (e.g., hallucinations, paradoxical undressing, or absence of vital signs).
Conclusion
Hypothermia is a dangerous condition that may result in life-threatening complications if it is not diagnosed and treated promptly. Learning the symptoms and progression of hypothermia helps individuals take immediate action to avoid serious consequences. Detection of hypothermia in its initial phases is the most important factor in saving lives, particularly in cases of emergency.
CPR First Aid offers necessary courses in hypothermia first aid, CPR, and other emergency reactions, making sure that participants have the information they need to effectively address such conditions. Register for a First Aid for Hypothermia course today and acquire the skills necessary to react during emergencies.