O2 Therapy Flashcards
Describe a oxygen cylinder
White cylinder with black writing
When is oxygen used in clinical practice?
Oxygen can be used to provide a basis for most modern anaesthetic techniques including pre and post-operative management and restore tissue oxygenation in a wide range of conditions such as:
- Cyanosis
- Surgical trauma, chest wounds and rib fractures
- Shock or severe haemorrhage
- Carbon monoxide poisoning
- Hyperpyrexia
- Major trauma (RTC and GSW)
- In the management of sudden cardiac and respiratory arrest
- Aid in the resuscitation of the critically ill, when the circulation is impaired
- Teat the acute severe headache in adults diagnosed with cluster headache
Describe the pre-user checks for a O2 cylinder
- Check for damage on the cylinder
- Check to make sure the cylinder has sufficient gas
- Complete fmed 373 - daily check list
Describe how to prepare a oxygen cylinder
High flow to 15, connect tubes and fill up bag, place on head and pinch nose.
How is O2 administrated?
Medical oxygen is administered by inhalation through the lungs via:
- Simple O2 mask
- Bag-Valve mask
- Nasal cannula
- Non-rebreather mask
- Venturi mask
Define hypoxia
Hypoxia is where there is insufficient oxygen in the body tissue
What are the causes of hypoxia?
There are a number of causes of hypoxia including:
- Insufficient oxygen in inspired air
- Suffocation by smoke or gas
- Change in atmospheric pressure
- Airway obstruction
- Choking
- Blocked or swollen airway
- Anaphylaxis
- Chest wall injury
- Rib fracture
- Constrictive burns
- Damage to the brain or nerve that control respiration
- Impaired lung function
- Impaired brain function
- Impaired oxygen uptake by the tissues
What are the signs and symptoms of hypoxia?
In moderate to severe hypoxia there will be:
- Rapid breathing
- Breathing that is distresses or gasping
- Difficulty in speaking
- Cyanosis
- Anxiety/restlessness
- Headache
- Nausea/vomiting
- Cessation of breathing if not quickly reversed
