Methods Of Oxygen Admin

Question 1

Low Flow Nasal Cannula

Answer 1

Flow Rate: 0.5 to 6 LPM
- acc to book, can be 2-4 or 4-6 LM; but based on current practice as low as 0.5

FiO2: 22-44%

Question 2

What is the relationship of flow rate and FiO2?

Answer 2

Directly proportional, if one increases so does the other

Question 3

Simple face mask

Answer 3

• Flow Rate: 5 to 10 LPM
• FiO2: 40 to 60%
• given if pt (w/o COPD) is experiencing hypoxemia and LFNC is ineffective (should ask agad doctor if they want to start simple face mask)

Question 4

Partial Rebreather Mask

Answer 4

• Flow Rate: 5-15 LPM
• FiO2: 60 to 80%
• Has a reservoir where excess oxygen is collected
• *given if simple face mask proves to be ineffective

Question 5

Nonrebreather mask

Answer 5

• Flow rate: 5 to 15 LPM
• FiO2: as high as 80 to 90%
• contains a valve that DOES NOT allow air from outside to enter reservoir

Question 6

High Flow Oxygen Therapy

Answer 6

• delivers 15L to 70L of warm humidified gas via nasal prongs
• FiO2: 21 to 100%

Question 7

Nursing considerations for HFOT

Answer 7

• Monitor VS q2 or as prescribed
• Assess temp of humidified O2
• Monitor skin integrity and ABG for O2 adequacy

Question 8

Effects of extreme temperatures of humidified oxygen ?

Answer 8

Too hot = mucosal dryness or irritation
Too cool = condensation, lower FiO2 delivery

Question 9

At which rate can we provide COVID-19 patients with High FLow Nasal Therapy to prevent aerosol generation?

Answer 9

30 LPM

• To prevent aerosolization, the High Flow
  Nasal Cannula is set at a maximum of 30 Lpm. When you go higher than the maximum, it spreads to the environment