Airway

Question 1

How to measure for the size of the nasopharyngeal device?

Answer 1

from the targus → the nose

(soft to soft)

Question 2

How to measure for the size of the oropharyngeal device?

Answer 2

the tip of teeth → angle of mandible

Question 3

What way do we put an oropharyngeal device in children?

Answer 3

Up to 11-12 years old

Put ‘the right way in’

*this is due to the anatomical development of hard palate

Question 4

What is the only definitive airway?

Answer 4

ET tube = endotracheal airway

Question 5

How many litres does the nasal cannula deliver?

Answer 5

1 - 6 L/ min

(about 20% of O2)

Question 6

How many litres of O2 does the simple face mask deliver?

Answer 6

6-12 L/min

(35-60% of oxygen)

*minimum of 6L as otherwise the CO2 would accumulate by rebreathing)

Question 7

How many litres of oxygen does the venturi mask deliver?

Answer 7

It depends - adaptors are used to give specific % of oxygenation

Question 8

How many litres of O2 does non-rebreather mask deliver?

Answer 8

Non-rebreather mask (aka Hudson mask)

15 L/min

• (less can accumulate CO2) + do not leave on the patient for too long -> we need to treat the cause
• How it works: a bag is a reservoir to concentrate O2

Question 9

Litres of O2 and use of high flow nasal cannula

Answer 9

• used mostly in paeds
• delivers up to 60L (30-100%)
• +ive end respiratory pressure to open up the airways

Question 10

3 criteria to suspect anaphylaxis

Answer 10

• life-threatening problems of airway/breathing/circulation
• sudden/rapid progression
• skin/mucosal changes