First Responder Annual Refresher Level 3 (VTQ)

128 videos, 7 hours and 37 minutes

Course Content

Hypoxia

Video 82 of 128
4 min 59 sec
English
English
Want to watch this video? Sign up for the course or enter your email below to watch one free video.

Unlock This Video Now for FREE

This video is normally available to paying customers.
You may unlock this video for FREE. Enter your email address for instant access AND to receive ongoing updates and special discounts related to this topic.

Hypoxia: Causes, Symptoms, and Treatment

Understanding Hypoxia

Hypoxia is a condition characterized by insufficient oxygen supply to the body or a specific body part. It can manifest as either generalised or local.

Types of Hypoxia

  • Generalised Hypoxia: Affects the entire body, often seen at high altitudes or due to breathing low-oxygen gas mixtures.
  • Local Hypoxia: Targets a specific region of the body, resulting in inadequate oxygen perfusion.

Causes and Scenarios

Exercise-induced: Occurs transiently after strenuous physical activity, typically resolves with rest.

Altitude-related: Low oxygen levels at high altitudes can lead to altitude sickness, requiring supplemental oxygen or descent.

Diving-related: Closed-circuit rebreather systems or contaminated air tanks can cause hypoxia during underwater activities.

Medical Conditions: Various health issues such as heart attacks, asthma, poisoning, drowning, and cardiac arrest can induce hypoxia.

Intentional Exposure: Mild hypoxia may be deliberately induced during altitude training to enhance athletic performance.

Symptoms

The signs of hypoxia vary based on severity and onset speed:

  • Mild Symptoms: Light-headedness, fatigue, numbness, tingling, and nausea.
  • Severe Symptoms: Confusion, disorientation, hallucinations, behavioral changes, severe headaches, breathlessness, and cyanosis.

Treatment and First Aid

Hypoxia in first aid is managed by:

  • Medical Oxygen: Administering supplemental oxygen.
  • Monitoring: Using a Pulse Oximeter to assess oxygen levels.
  • Observation: Monitoring signs and symptoms of the patient's condition.

Conclusion

Hypoxia requires prompt recognition and appropriate intervention to prevent further complications and ensure patient well-being.