Oxygen Therapy

Question 1

1. When may early aggressive O2 administration benefit patients?

Answer 1

Critical illnesses and haemodynamically unstable: CASKETS
- Cardiac arrest/resus
- Anaphylaxis
- Shock
- Ketamine sedation
- Epilepticus status
- Trauma (major)/head injury
- Severe sepsis
Once stable titrate to 92-96%

Question 2

2. What are the special circumstance for paraquat and bleomycin poisoning?

Answer 2

Maintenance of prophylactic hypoxaemia (85-88%)

Question 3

3. When is pulse oximetry unreliable?

Answer 3

• Peripheral vascular disease
• Severe asthma
• Severe anaemia
• Cold extremities/peripherally shut down
• Severe hypotension
• Carbon monoxide poisoning

Question 4

4. What are the Chronic Hypoxaemia conditions?

Answer 4

CCBONS

• COPD
• Cystic Fibrosis
• Bronchiectasis
• Obesity
• Neuromuscular disorders
• Severe kyphoscoliosis

Question 5

5. What are conditions that receive high flow O2 regardless of SpO2?

Answer 5

CCPTSD

• Cord prolapse
• Cluster headache
• Postpartum haemorrhage
• Toxic inhalation exposure
• Shoulder dystocia
• Decompression illness