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RET 2934 > Chapter 1 > Flashcards

Chapter 1 Flashcards

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1
Q

How many liters are in 1 cu ft?

A

2.83

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2
Q

Which system does larger cylinders use?

A

American standard safety system

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3
Q

Small cylinders use which safety system?

A

Pin index safety system (PISS)

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4
Q

What color tank is O2?

A

Green

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5
Q

What color tank is Helium?

A

Brown

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6
Q

What color tank is CO2?

A

Gray

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7
Q

What color tank is nitrous oxide?

A

Light blue

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8
Q

What color tank is cyclopropane?

A

Orange

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9
Q

What color tank is ethylene?

A

Red

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10
Q

What color tank is air?

A

Yellow

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11
Q

What color tank is CO2/O2?

A

Gray & Green

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12
Q

What color tank is He/O2?

A

Brown & green

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13
Q

How often is a cylinder tested?

A

Every 5-10 years?

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14
Q

What is a cylinder tested for?

A
  1. Cylinder expansion
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15
Q

Liquid O2 should not exceed a pressure of what?

A

250 psig

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16
Q

It should not exceed a temp of what?

A

-297 deg F

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17
Q

What must you always do before attaching a
regulator?

A

Crack the cylinder

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18
Q

A hole in the diaphragm of cylinder will result in
what?

A

A continuous leak

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19
Q

What is the formula for duration of flow?

A

Cylinder factor x pressure/ flow rate

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20
Q

What is the formula for duration of flow (liquid

A

Liquid wt (lbs) x 344

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21
Q

O2)?

A

Take your answer and divide by flow rate then

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22
Q

What safety system is used for flowmeter
outlets?

A

Diameter index safety system (DISS)

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23
Q

If the flow meter is turned off completely and
there is still bubbling what does that indicate?

A

Valve seat is faulty and flowmeter must be
replaced

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24
Q

What is the advantage of the Bourdon gauge?

A

It’s not patient dependent

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25
Why is this beneficial?
Makes transporting patient easier
26
What are the indications for O2 therapy?
2. Labored breathing or dyspnea
27
What are some signs and symptoms of hypoxemia?
3. Cyanosis (unless anemia is present) 4. Impairment of special senses 5. Headache
28
What are some complications of O2 therapy?
3. O2 toxicity
29
What is reduced mucociliary activity?
beating of cilia in the mucociliary blanket is not as active when hight FiO2 are used.
30
What is the four types of hypoxia?
2. Anemic hypoxia 3. Stagnant (circulatory) hypoxia
31
What is hypoxemic hypoxia?
Alveolar Hypoventilation Diffusion defects
32
What is anemic hypoxia?
Decreased HB level CO poisoning
33
What is stagnant (circulatory) hypoxia?
Decreased HR
34
What is Histotoxic hypoxia?
cyanide poisoning alcohol poisoning
35
What is a low-flow delivery device?
An O2 device that does not meet the patients inspiratory flow demands.
36
How much FiO2 does a transtracheal catheter give?
22-35%
37
How much flow?
¼ - 4L/min
38
How much FiO2 does a nasal cannula give?
24 - 40%
39
How much flow?
¼ - 6L/min
40
How much FiO2 does a nasal reservoir cannula deliver?
22-35%
41
How much flow?
¼ - 4/L/min
42
How much FiO2 does a simple mask deliver?
35 - 50%
43
How much flow?
5 - 10%
44
How much FiO2 does a nonrebreathing mask?
60 - 80%
45
How much flow?
10 - 15L/min
46
If the patient comes in tachypneic what device should you choose?
Low flow
47
Low flow devices are adequate oxygen delivery systems only when the patient meets the following criteria:
1. Regular and consistent ventilatory pattern 2. RR < 25 breaths per min 3. Consistent VT of 300-700mL (not fluctuating)
48
What is the formula for Air/O2 entrainment ratios?
100-x/x-20= parts of air entrained/ 1 part of O2 Use 21 with percentages less than 40
49
What is the formula for total flow?
Ex. 40% (3:1 air/O2 ratio)
50
What is the formula for inspiratory flow?
Vt(L)/Ti(s)
51
How much FiO2 and flow does and aerosol mask deliver.
21-100% FiO2 8-15L/min
52
For an aerosol mask ____ should be available at all times to ensure adequate flow rates.
Mist
53
What is the FiO2 and flow rate for a face tent?
21-40% 8-15 L/min
54
What is the FiO2 and flow rate for a T-piece adapter?
21-100% 8-5 L/min
55
What is the FiO2 and flow rate for a Trach mask?
35-60% 10-15 L/min
56
What is the FiO2 and flow rate for an oxymask?
24-90% 1-15 (flush)
57
What is a high flow nasal cannula?
This provides high flow therapy via a thermally controlled humidification system.
58
HFNC provide how much body heat to patients?
100%
59
and. Up to _____ are used in adults proving O2
8; 60; 90
60
water in the tubing, causes_____ decreasing the amount of air entrainment and therefore increasing the percentage of O2.
Back pressure into the nebulizer
61
What is the formula for FiO2?
O2 flow + (air flow x 0.2)/total flow
62
For an O2 blender an audible alarm system that sounds if there is ____?
A drop in inlet pressure
63
When using a blender/nebulizer to provide O2, make sure the nebulizer is set on _____
100%
64
For an 80:20 mixture of helium and O2, multiply the flowmeter reading by ____ to determine
1.8
65
correct flow rate?
Ex. 10×1.8=18 L/min
66
For an 80:20 mixture of helium and O2, to deliver specific flow divide the flow rate by ____?
1.8 Ex. 12/1.8=6.6 L/min
67
For a 70:30 mixture of heliox, multiply the flowmeter reading by ____?
1.6
68
For a 70:30 mixture of heliox, divide by ____for specific flow?
1.6
69
What are some causes of inaccurate readings?
5. Hypothermia
70
List the air/O2 ratios for 60% O2, 40% O2, 35% O2, 30% O2, and 24% O2.
35 = 5:1 30 = 8:1 40 = 3:1
71
Give four examples of high-flow O2 delivery
2. Aerosol mask
72
devices.
3. Face tent
73
What is the primary benefit of using a reservoir cannula?
The device delivers more O2 for the patient so flow can be decreased.
74
List the three ventilatory criteria that should be met by patients receiving O2 from a low-flow
An O2 device that does not meet the patients needs. Room air makes up the rest of the Vt.
75
device.
Normal flow 25-30
76
Give examples of three low-flow O2 delivery devices.
1. Nasal cannula 2. Simple mask 3. Partial rebreather
77
List five indications for the use of hyperbaric O2 therapy.
1. CO poisoning 2. Cyanide poisoning

RET 2934 (13 decks)

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