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TERM 3 N2160 SKILLS 3 > WEEK 2 O2 > Flashcards

WEEK 2 O2 Flashcards

1
Q

What % oxygen is room air?

A

20%

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2
Q

How does oxygen travel in the blood?

A

Majority binds to Hgb, the rest freely travels in blood

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3
Q

What % oxygen is low flow?

A

24-60% FiO2

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4
Q

What % oxygen is high flow?

A

36-100% FiO2

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5
Q

How does the patient’s breathing pattern affect FiO2?

A

Hyperventilation produces lower FiO2 as more room air will mix with O2

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6
Q

What FiO2 is expected with a patient on 1-6L/min?

A

24-44% FiO2

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7
Q

What FiO2 is expected with a patient on 7-8L/min?

A

50-60% FiO2

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8
Q

Why is low flow oxygen always recorded as L/min?

A

Because we don’t know exactly the FiO2 being delivered

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9
Q

How should the flow meter be adjusted with regards to the floating ball?

A

To the middle of the ball

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10
Q

Why is O2 via simple face mask only for 6-15 L/min?

A

To prevent rebreathing of exhaled CO2

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11
Q

What maintenance is required for a patient on simple face mask?

A

Routine humidification

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12
Q

What is the minimum O2 rate for a non-rebreather mask?

A

12L/min

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13
Q

What does it mean if the reservoir of a nonrebreather mask is not inflated?

A

Either O2 is not high enough or the mask is faulty

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14
Q

What is the purpose of the valves in a nonrebreather mask?

A

Room air enters through valves and mixes with inhaled O2
Exhaled CO2 exits out through valves

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15
Q

What are 2 ways high flow oxygen is different from low flow?

A
  1. More precise controls
  2. FiO2 is not affected by patient’s respirations
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16
Q

What are 2 ways high flow oxygen is delivered?

A
  1. High flow nasal cannula
  2. High flow face mask
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17
Q

What SpO2 is considered hypoxic for a COPD patient?

18
Q

How is hypoxemia diagnosed?

A

Through the PaO2 value found through ABG test

19
Q

What are 3 things O2 is not used to treat?

A
  1. SOB when SpO2 is normal
  2. Peripheral cyanosis (circulation issue)
  3. Anemia (not enough Hgb)
20
Q

What should the nurse do when putting a COPD patient on O2, and why?

A

Monitor respirations for the first minute of applying O2 as this is when respiratory arrest from hypoxic drive is most likely to occur

21
Q

What is another term for the tripod position?

A

Orthopneic position

22
Q

What is the nursing action required for a patient with wheezing, RR is 28, and SpO2 is 93%?

A

Bronchodilators

23
Q

What are the nursing actions for crackles heard on auscultation and the SpO2 is 93%?

A
  1. Promote movement of fluid in lungs by encouraging DB+C, mobilization
  2. Address the cause by monitoring fluid intake and administering diuretics if ordered
  3. Be ready to admin O2
24
Q

In an emergency, how should O2 be initiated?

A

Via simple face mask at 8-12L

25
For non-emergencies, how should O2 be initiated?
Via NP at 1-3L
26
What is important to keep in mind when weaning O2?
No bronchodilators for 20 mins prior (can positively skew SpO2)
27
About how long should you allow a patient time to adjust to a lower O2 level?
1 hr
28
What are 3 reasons to contact the RT?
1. Difficulty maintaining SpO2 on simple face mask at highest flow 2. Acute respiratory distress 3. If patient has artificial airway
29
What are 4 symptoms of respiratory distress?
1. Hyperventilation 2. Dyspnea 3. Hypotension 4. Confusion
30
Why does O2 administration create a risk for pulmonary toxicity?
Increased O2 means decreased nitrogen, which is essential to help alveoli to remain inflated
31
What is a systemic consequence of oxygen administration?
Formation of free hydroxal radicals
32
What are 2 examples of adrenergic bronchodilators, and what are they used for?
Salbutamol, salmeterol Rescue inhaler for acute asthma attacks
33
What are 2 examples of anticholinergic bronchodilators, and how are they used?
Ipratropium, tiotropium Treatment of COPD in combination with adrenergics
34
What are 2 examples of corticosteroids, and what are they used for?
Budesonide, fluticasone Decrease inflammation, improve responsiveness to adrenergics
35
What rate should the flowmeter be set for a nebulizer?
6-10L/min
36
In a COPD patient, how should a nebulizer be administered?
6L, and watched respirations for first minute
37
When using a spacer, what does a whistling noise indicate?
Inhaling too quickly
38
What is the generic name for Ventolin?
Salbutamol
39
What is the generic name for Atrovent?
Iprotropium
40
What is the generic name for Flovent?
Fluticasone
41
What is the generic name for Pulmicort?
Budesonide

TERM 3 N2160 SKILLS 3 (11 decks)

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