Supplemental O2

Question 1

PaO2 definition and normal range

Answer 1

Definition: Amount of oxygen available in the bloodstream.
Normal PaO2: 75–100 mmHg

Question 2

SpO2 definition and normal range

Answer 2

Definition: Percent of O2 binding on hemoglobin.
Normal SpO2: Over 90%

Question 3

A left shift on the SpO2/PaO2 graph indicates what (3)?

Answer 3

• Decreased temperature
• Decreased 2-3 DPG
• Decreased H+

Question 4

A Right Shift on SpO2/PaO2 Graph indicates what (3)?

Answer 4

• Increased temperature
• Increased 2-3 DPG
• Increased H+

Question 5

T/F if SpO2 is normal in sick patients, PaO2 is likely normal as well.

Answer 5

False: Normal SpO2 does NOT guarantee normal PaO2 in sick patients.

Question 6

FiO2 definition and normal sea level %

Answer 6

Definition: Fraction of inspired oxygen.
Normal at Sea Level: 20.95%

Question 7

PEEP definition and normal range

Answer 7

Definition: Positive end-expiratory pressure (air left in lungs after exhale).
Normal PEEP: 3–5 cm H2O

Question 8

Best Test for Ensuring Effective Oxygen Delivery

Answer 8

ABGs

Question 9

If O2 is low, what should be increased?

Answer 9

FiO2

Question 10

If CO2 is high what should be increased?

Answer 10

Airway pressure to keep airways open

Question 11

pH normal range

Answer 11

7.35-7.45

Question 12

CO2 normal range

Answer 12

35-45 mmHg

Question 13

PaO2 normal range:

Answer 13

75-100 mmHg

Question 14

HCO3 normal range

Answer 14

22-26 mEq/L

Question 15

O2 sat normal range:

Answer 15

95-100%

Question 16

2 indications for a face tent

Answer 16

• Facial fractures
• Claustrophobia with other masks

Question 17

3 precautions with nasal cannula

Answer 17

• Prongs should be down when inserted.
• Watch for skin breakdown over ears.
• Monitor for dried-out mucosa.

Question 18

When is a venturi indicated?

Answer 18

CO2 retention concerns

Question 19

What is the advantage of high-flow O2 delivery devices?

Answer 19

Provides higher FiO2 at lower flows

Question 20

Identify: 2-way valve allows 1/3 of exhaled air to enter reservoir bag.

Answer 20

Partial Rebreather Mask

Question 21

Identify: 1-way valve washes patient with high O2 flow.

Answer 21

Non-Rebreather Mask

Question 22

High-Flow Oxygen Delivery Devices (Low to High Flow):

8 total

Answer 22

Simple facemask
High-flow nasal cannula
Face tent
Open design mask
Venturi mask
Partial rebreather mask
Non-rebreather mask
Heated humidified high-flow nasal cannula

Question 23

5 things to document for supplemental O2

Answer 23

• Flow rate (L/min)
• O2 delivery system
• O2 modifications during treatment
• Breathing strategies to assist SpO2
• Recovery time to baseline

Question 24

CPAP stands for..

Answer 24

Continuous positive airway pressure

Question 25

BiPAP stands for ..

Answer 25

Bilevel positive airway pressure