Oxygen

Question 1

Oxygen Class

Answer 1

Gas

Question 2

Oxygen Description

Answer 2

Odourless, tasteless, colourless gas necessary for life

Question 3

Oxygen Presentation

Answer 3

D,E, or F cylinders, coloured black with white shoulders

CD cylinder; white cylinder Medical Gas

Question 4

Oxygen Administration

Answer 4

Inhalation via:- high concentration reservoir (non-rebreather) mask- simple face mask- venturi mask- tracheostomy mask- nasal cannula- bag valve mask

Question 5

Oxygen Indications

Answer 5

Absent/inadequate ventilation following an cute medical or traumatic event.
SpO2 < 94% adults and < 96% paeds
SpO2 < 92% for patients with acute exacerbation of COPD
SpO2 < 90% for patients with acute onset of Pulmonary Oedema

Question 6

Oxygen Contraindications

Answer 6

Bleomycin (Cancer Drug) lung injury

Question 7

Oxygen Dosage

Answer 7

Adult:
Cardiac / Respiratory arrest or sickle cell crisis: 100%
Life Threats identified in Primary survey: 100% until reliable SpO2 of 94% - 98%
COPD: titrate to 92%
Everything else: titrate to 94%- 98%

Paed:
Cardiac/respiratory arrest or Sickle cell crisis: 100%
Life Threats Prim Surv: 100% titrate to 96% -98%
Neonate Resus (<4 weeks): COnsider supplementary O2 (≤30%)
Everything else: titrate to 96% - 98%

Question 8

Oxygen Pharmacology

Answer 8

Oxygenation of tissue/organs

Question 9

Oxygen Side Effects

Answer 9

Prolonged use of O2 with chronic COPD patients may lead to reduction in ventilation stimulus

Question 10

Oxygen Additional Info

Answer 10

A written record must be made of what oxygen therapy is given to every patient. Documentation recording oximetry measurements should state whether patient is breathing air or a specified dose of supplemental oxygen. consider humidifier if O2 therapy for paed patients is > 30 mins duration. Avoid naked flames, powerful oxidising agent.
Caution with paraquat poisoning, administer O2 if SpO2 <92%.