Nitrous Oxide

Question 1

What type of drug is Nitrous Oxide?

Answer 1

Analgesic

Question 2

Nitrous Oxide Presentation

Answer 2

Nitrous oxide 50% oxygen 50%, in a medical cylinder that has a blue body and white shoulders

Question 3

Nitrous Oxide indications

Answer 3

moderate to severe pain
labour pains

Question 4

Nitrous Oxide contraindications

Answer 4

chest injury with a suspected pneumothorax

severe head injuries with impaired consciousness due to potential intracranial air

Decompression sickness

Violently disturbed psychiatric patients

Intraocular infection of air within the last 8 weeks

Abdo pain where obstruction is suspected

Question 5

Nitrous Oxide cautions

Answer 5

patient at risk of pneumothorax, pneuomediastinum or pneumoperitoneum

Question 6

What can prolonged use of nitrous oxide result in?

Answer 6

Vitamin B12 deficiency

Question 7

Advantages of nitrous oxide

Answer 7

rapid pain relief
no cardiorespiratory depression
self administered
pain relief wears off quickly
50% oxygen conc is valuable in medical and trauma conditions
can be administered when preparing alternative pain relief

Question 8

Nitrous oxide in children

Answer 8

effective in children provided they can follow the instructions

Question 9

Nitrous oxide dosage and administration in adults

Answer 9

facemask or mouthpiece
3-5 mins to be effective

Question 10

Action of Nitrous oxide

Answer 10

CNS depressant

Question 11

Decompression sickness is a contraindication of entonox. Patients who have been diving in the past ….. hours are at risk

Answer 11

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