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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?

A

88%

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
Q

For non-emergencies, how should O2 be initiated?

A

Via NP at 1-3L

26
Q

What is important to keep in mind when weaning O2?

A

No bronchodilators for 20 mins prior (can positively skew SpO2)

27
Q

About how long should you allow a patient time to adjust to a lower O2 level?

A

1 hr

28
Q

What are 3 reasons to contact the RT?

A
  1. Difficulty maintaining SpO2 on simple face mask at highest flow
  2. Acute respiratory distress
  3. If patient has artificial airway
29
Q

What are 4 symptoms of respiratory distress?

A
  1. Hyperventilation
  2. Dyspnea
  3. Hypotension
  4. Confusion
30
Q

Why does O2 administration create a risk for pulmonary toxicity?

A

Increased O2 means decreased nitrogen, which is essential to help alveoli to remain inflated

31
Q

What is a systemic consequence of oxygen administration?

A

Formation of free hydroxal radicals

32
Q

What are 2 examples of adrenergic bronchodilators, and what are they used for?

A

Salbutamol, salmeterol

Rescue inhaler for acute asthma attacks

33
Q

What are 2 examples of anticholinergic bronchodilators, and how are they used?

A

Ipratropium, tiotropium

Treatment of COPD in combination with adrenergics

34
Q

What are 2 examples of corticosteroids, and what are they used for?

A

Budesonide, fluticasone

Decrease inflammation, improve responsiveness to adrenergics

35
Q

What rate should the flowmeter be set for a nebulizer?

A

6-10L/min

36
Q

In a COPD patient, how should a nebulizer be administered?

A

6L, and watched respirations for first minute

37
Q

When using a spacer, what does a whistling noise indicate?

A

Inhaling too quickly

38
Q

What is the generic name for Ventolin?

A

Salbutamol

39
Q

What is the generic name for Atrovent?

A

Iprotropium

40
Q

What is the generic name for Flovent?

A

Fluticasone

41
Q

What is the generic name for Pulmicort?

A

Budesonide

TERM 3 N2160 SKILLS 3 (11 decks)

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