Chapter 5

Question 1

Nasal Cannula LPM

Answer 1

1-6lpm and 24-44%

Question 2

LPM for a trach mask

Answer 2

8-12

Question 3

Simple mask LPM

Answer 3

5-10

Question 4

How do you know if you need to increase the flow to a non-re-breather mask

Answer 4

if the bag collapses greater than 1/2 on inspiration

Question 5

Variable FiO2

Answer 5

Occurs with all low flow oxygen systems because inspiratory flow of an adult exceeds 8 L/min

Question 6

water that is considered humidity has water in what form?

Answer 6

Humidity is water in MOLECULAR form

Question 7

The four factors that effect the efficiency of humidity

Answer 7

Temp, surface area, contact time, and depth of water reservoir

Question 8

S/S that pt is in humidity deficit

Answer 8

Tenacious secretions, dry cough, atelectasis,

Question 9

Goal of humidity

Answer 9

to minimize or eliminate a humidity deficit while inhaling a dry gas

Question 10

Inspissated

Answer 10

thickened, dried, or made less fluid by evaporation

Question 11

types of humidifiers

Answer 11

bubble, simple reservoir, aerosol

Question 12

Pop off valve on bubblers can be caused by

Answer 12

high flow or kinked tubing

Question 13

Wick humidifier

Answer 13

AKA Passover aka simple reservoir that delivers 1000% air

Question 14

what does a servo controlled humidifier do

Answer 14

shuts off heat if there is no water left

Question 15

aerosol

Answer 15

contains particulate matter

Question 16

factors affecting particle deposition of aerosol

Answer 16

inertial impaction, sedimentation, size, and diffusion

Question 17

What particle size is required to become deposited in the oropharynx?

Answer 17

5 to 10

Question 18

what can increase deposition?

Answer 18

Increased tidal volume, longer inhalation, and breath hold

Question 19

aerosols can be used for what three modes?

Answer 19

sputum induction, humidity therapy, and as medication

Question 20

Bernouli’s principle

Answer 20

As pressure decreases, flow will increase

Question 21

if a jet has a larger orifice, what will the result be on particles?

Answer 21

causes larger particles and decrease delivery time

Question 22

What flow rate requires you to “t” two flowmeters during nebulizer treatment

Answer 22

more than 15.

Question 23

simple mask lpm

Answer 23

5-10

Question 24

simple mask oxygen %

Answer 24

35-50%

Question 25

Partial rebreathing mask lpm

Answer 25

8 or greater

Question 26

Partial rebreathing mask oxygen %

Answer 26

up to 60%

Question 27

Another name for a venturi mask

Answer 27

Air Entrainment Mask

Question 28

venturi mask oxygen %

Answer 28

Constant at 24/28/35/50

Question 29

resevoir tubing purpose for T tube

Answer 29

Uses 50 mL resevoir tubing to help maintain FiO2

Question 30

visible mist coming out of the resevoir means what?

Answer 30

adequate flow is achieved

Question 31

if the resevoir tube is detatched what will happen

Answer 31

the inspired O2 will decrease.

Question 32

Oxygen Toxicity

Answer 32

Lung damage as a result of O2 of 50% or highere for 48 to 72 hours

Question 33

two main factors that determine effects of O2 toxicity

Answer 33

FiO2 and exposure time

Question 34

What happens if you raise PaO2 with 70mmHG or higher

Answer 34

they will become lethargic and somnolent from knocking out the hypoxic drive

Question 35

What devices do you use for COPD pt

Answer 35

FiO2 of less than 30% (1-2lpm cannula or 24-28 AEM venturi mask)

Question 36

Amount of oxygen dissolved in the blood plasma

Answer 36

PaO2

Question 37

Pulse Ox

Answer 37

measures oxyhemoglobin saturation of ARTERIAL blood (SpO2)

Question 38

What % O2 can be delivered through venturi

Answer 38

24/28/35/50

Question 39

nasal catheter

Answer 39

1/4 to 5L with variable O2 of 22-45%