Oxygen Therapy

Question 1

how many mL’s of oxygen is needed to require humidification?

Answer 1

anything greater than 4mL/min

Question 2

how often should you check cannula mask ?

Answer 2

every 8 hours to ensure patency of cannula and oxygen flow

Question 3

what is the technique for inserting at the oropharyngeal airway? and why would you use it?

Answer 3

measure from corner of mouth to angle of jaw just below ear. You’d use to keep patient from choking on tongue

Question 4

what rate can a high-flow nasal cannula deliver? and what can it deliver

Answer 4

can deliver heated and humidified air/oxygen up to 60L/min

Question 5

what is the selection of oxygen delivery system dependent on?

Answer 5

1. level of oxygen support the pt needs
2. severity of hypoxia
3. disease process

Question 6

what are the two types of incentive spirometry?

Answer 6

flow oriented and volume oriented incentive spirometry

Question 7

what is flow oriented incentive spirometry?

Answer 7

one or more plastic chambers

-its a slow, steady, expansion of lung

Question 8

what is volume oriented incentive spirometry?

Answer 8

bellows that pt must rise

-pt can achieve a known inspiratory volume, measure it with each breath

Question 9

oxygen delivery devices can be….? what are they

Answer 9

high flow or low flow

high: provide total inspired air indicated for patients who require a constant and precise amount of oxygen
low: pt breathes some room air along with the oxygen

Question 10

examples of high flow oxygen delivery devices?

Answer 10

venturi mask, large volume nebulizer, blender masks, high flow nasal cannula

Question 11

examples of low flow oxygen delivery devices?

Answer 11

nasal cannula, simple face mask, non rebreather and partial rebreather

Question 12

which way should cannula point in nose?

Answer 12

tips of nasal cannula should point downward inside nostrils

Question 13

why would you choose a face mask over a nasal cannula?

Answer 13

if pt requires more than 5L of oxygen

Question 14

how much oxygen can be delivered through a low flow nasal cannula?

Answer 14

1-6L/min

Question 15

how much oxygen can a simple face mask deliver?

Answer 15

6-12L/min

Question 16

how much oxygen can be used with a partial non rebreather?

Answer 16

10-15L/min (flow rate must be high enough to prevent collapse of bag)

Question 17

when would a bag valve masked be used? and how do you put it on?

Answer 17

if pt is unconscious- need breathing support, has reservoir. When putting BVM on make sure neck/spine is in neutral position (head tilt chin lift)