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N1213 > Oxygen Delivery > Flashcards

Oxygen Delivery Flashcards

1
Q

Why supplemental oxygen therapy?

A
  • MSK function
  • dec. inspired O2
  • hypovolemia (loss hemoglobin)
  • inc. metabolic rate
  • atrial fib
  • hypoventilation
  • cyanotic
  • hypoxia
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2
Q

What are the early signs of hypoxia?

A
  • drowsiness, confusion, restlessness
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3
Q

SpO2

A
  • estimated amount of oxygen in blood bound or carried by oxygenated hemoglobin
  • compared to total amount of hemoglobin in blood
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4
Q

What is FiO2

A
  • concentration of oxygen that a person inhales
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5
Q

What is room air FiO2?

A

21%

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6
Q

What is the goal of O2 therapy?

A

optimal arterial O2 with lowest amount of affected dose of O2

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7
Q

10 rights of medication

A
  • right medication (oxygen)
  • right dose (concentration)
  • right client (check band)
  • right route (delivery device)
  • right time/frequency (continuous, with exercise)
  • right documentation
  • right reason
  • right to refuse
  • right education
  • right evaluation
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8
Q

Oxygen safety

A
  • no smoking signs
  • electrical equipment functional and grounded
  • know location fo fire extinguisher
  • know fire procedures
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9
Q

Transporting with O2 safety:

A

1) adequate supply for transport time

2) oxygen cylinders are secured to prevent tipping/falling

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10
Q

AHS Policy

A
  • order is required: in emergency, RN or RT can make an order, and LPN =delegated with supervision of RN
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11
Q

When is an RT consulted?

A
  • non-rebreather masks. venturi masks, or nebulizers in excess of 0.50, or in symptoms of respiratory instability
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12
Q

What devices are one-time use?

A
  • tubing, masks, and cannula’s
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13
Q

When do you need an order?

A
  • transport = flow rate > 8L, 40% FiO2, RN, LPN

- RRT consultation

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14
Q

Devices and reservoirs

A
  • patient’s oropharynx and cannula
  • patient’s oropharynx and volume of mask
  • oropharynx, volume of mask, volume of tusks
  • oropharynx, volume of mask, volume of bag
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15
Q

Higher reservoir volume = ____________

A

higher volume of O2

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16
Q

What is nebulization?

A

adding moisture or medication to inspired air

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17
Q

Low flow devices?

A
  • variable performance as Fi02 fluctuates based on breathing patterns
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18
Q

Example of low flow devices?

A
  • nasal cannula, simple masks, reservoirs
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19
Q

High flow devices?

A
  • fixed performance, Fi02 delivered because the device exceeds flow the patient breaths in
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20
Q

Examples of high flow devices?

A
  • venturi mask, large volume or high flow cold nebulizer
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21
Q

Resevoir?

A
  • area providing space where air can sit and remain available for patient to inhale
  • draw anytime
  • nasal cannula
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22
Q

Five safety measures when administering oxygen?

A
  1. no smoking
  2. all electrical equipment functional and grounded
  3. locate fire extinguisher
  4. know fire protocol and evacuation route
  5. before transporting client, check oxygen level
23
Q

Low Flow Nasal Prongs (Cannula)

A

22-40%

1-6 L (normally 4L)

24
Q

Pros of Low Flow Nasal Prongs (Cannula)

A
  • non-invasive
  • inexpensive
  • comfortable
  • allows for talking/eating
25
Q

Cons of Low Flow Nasal Prongs (Cannula)

A
  • skin breakdown over ears
  • easily dislodged
  • drying to mucous membranes
26
Q

High Flow Nasal Prongs/Cannula

A

6-15 L/min
5L = 50%
10L = 62%
15 L = 80%

27
Q

Pros of High Flow Nasal Prongs/Cannula

A
  • for clients who cannot tolerate face mask for prolonged periods
  • low flow device
28
Q

Cons of High Flow Nasal Prongs/Cannula

A
  • drying to mucous membranes

- skin breakdown over ears

29
Q

Simple face mask (short term only)

A

40-60%

5-8L/min

30
Q

Pros of Simple face mask (short term only)

A
  • short term use (<12 hours)

- easy to fit

31
Q

Cons of Simple face mask (short term only)

A
  • contraindicated in COPD
  • hot and confining
  • interferes with talking/eating
32
Q

Simple face mask must be set to at least _____ or rebreathing of CO2 will occur.

A

5L

33
Q

Face tent mask

A

8-10 L/min
40%
- for patients with facial trauma or claustrophobia
- plus cold nebulizer

34
Q

Partial non-rebreather mask

A 
40-70%
15L/min
- no one way valve
- reservoir bag = inflated
- severe/acute distress
- low-flow
35
Q

Non-rebreathing mask flowrate/FiO2?

A

60-80%
15 L/min
- min 10L/min

36
Q

Non-rebreathing mask

A
  • low flow device
  • reservoir bag = inflated
  • severe/acute distress
  • closed system
  • 3 valves = prevents CO2 from entering reservoir
37
Q

Oxymask

A

24%-90%

38
Q

Venturi Mask

A

set flow rate as per colour-coded valve

  • hot and confining
  • for short term therapy
39
Q

Venturi Masks benefits?

A

1) high flow
2) multiple FiO2
3) good for COPD

40
Q

Humdification

A

> 4L
no longer used = must wear AGMP
aerosol generating medical procedure = n95

41
Q

Oral airway

A

curved device, keeps relaxed tongue positioned forward within mouth
- preventing tongue from obstructing upper airway

42
Q

Indications for insertion of an artificial airway?

A

1) obstructed airway
2) dec. LOC
3) tracheobronchial secretion removal

43
Q

Purpose of an oral airway?

A

prevent obstruction of the trachea

44
Q

Measurement of an oral airway?

A

distance from corner of mouth to angle of jaw just below ear

45
Q

Oral airway too small?

A

tongue not held in anterior portion of mouth

46
Q

Oral airway too big?

A

tongue forced towards epiglottis and obstruct airway

47
Q

Goal of oxygen therapy?

A

prevent/relieve tissue hypoxia

48
Q

When is oxygen therapy discontinued?

A
  • patient able to maintain SpO2 > 90% on RA for 24 hours
  • VSS
  • physician order
49
Q

A ____ order is required to initiate oxygen therapy, except in an emergency situation.

A

physician

50
Q

What is classified as an emergency situation?

A
  • acute chest pain
    • unstable angina
    • other acute situations in which hypoxia is suspected.
51
Q

Hypoxia

A

insufficient oxygen available to meet the metabolic needs of tissues and cells

52
Q

What should a physician order include?

A
  • O2 flow rate/FiO2
    OR
  • oxygen therapy protocol for O2 tritation
53
Q

How often should monitoring of oxygen be?

A
  • at least every 12 hours

N1213 (9 decks)

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