Respiratory Sys; Oxygen and Pulse Ox

Question 1

is used to humidify the oxygen we get from the tank because oxygen has a drying effect.

Answer 1

humidifier bottle

Question 2

Normally, we don’t need to humidify the
oxygen we get from the atmosphere due to the
presence of

Answer 2

mucus

Question 3

→ These devices deliver oxygen directly into the patient’s airway at flow rates of 8L/min or less.

Answer 3

LOW FLOW DEVICES (LFD)

Question 4

LFD TYPE:
→ Convenient because it allows the patient to move about in bed, talk, cough, and eat without interrupting oxygen flow.

→ The oxygen flow rate for this device ranges from ____

Answer 4

NASAL CANNULA

1 to 6 L/min.

Question 5

LFD NASAL CANNULA

→ Because the patient also breathes room air, the O2 concentration ultimately delivered to the alveoli ranges from ___ TO ___

Answer 5

24% to 44%.

Question 6

LFD NASAL CANNULA

Oxygen is administered at flow rates of __L/min or less doesn’t need to be humidified.

→ Oxygen is administered at flow rates above __L/min should be humidified to prevent discomfort because oxygen has a ___

Answer 6

4

drying effect.

Question 7

LFD TYPE:
→ Its mask mixes oxygen with room air.

→ The mask itself acts as a reservoir, it can deliver an FiO2 of 40% to 50%, using oxygen flow rates from

Answer 7

SIMPLE FACE MASK

5 to 10L/min.

Question 8

LFD SIMPLE FACE MASK

→ A minimum flow rate of ___L/min is needed to ______ out of the mask, so that the patient doesn’t rebreathe it.

Answer 8

5

flush the expired CO2

Question 9

LFD SIMPLE FACE MASK

▪ DO NOT USE if the oxygen being given is less than __, because if less than __, it is possible for the ___

Answer 9

5

CO2 to accumulate in the lungs

Question 10

LFD TYPE:
→ This is ideal for emergency situations when the patient needs a high inspired-oxygen concentration (60% to 95%) for a short time.

→ The oxygen is administered at a flow rate of up to _____ in an emergency

Answer 10

NON-REBREATHER MASK

12 to 15L/min

Question 11

LFD NON-REBREATHER MASK

The reservoir bag should be at least ___ full on inspiration.

Answer 11

1/3 to ½

Question 12

LFD NON-REBREATHER MASK

one-way valve located between the ____ allows gas from the reservoir bag to ___ on ___ but prevents gas in the mask from _____ into the reservoir bag during ____.

▪ Ensure that a sufficient oxygen flow rates is used so the_____

Answer 12

reservoir bag and the base of the mask

enter the mask - inhalation

flowing back - exhalation

oxygen reservoir bag does not collapse during inspiration.

Question 13

It is intended OXYGEN for moderate to severe respiratory distress.
▪ Monitor for any potential suffocation

Answer 13

LFD NON-REBREATHER MASK

Question 14

LFD NON-REBREATHER MASK

→ Do not allow the reservoir bag to deflate because the patient is likely to

Answer 14

breathe in large amounts of exhaled CO2.

Question 15

The oxygen flows out of the device and into the patient’s airway in an amount sufficient to meet all inspiratory volume requirements.

Answer 15

HIGH FLOW DEVICES (HFD)

Question 16

HDF TYPE:

→ It uses a mixture of oxygen, entrained room air, and water to achieve the desired humidified oxygen concentration.

→ This is also used to administer medication

Answer 16

AEROSOL MASK

Question 17

HDF TYPE:

→ This specialized mask enables delivery of precise oxygen concentrations.

→ Good for patients with Chronic Hypercarbia (CO2 retention) and moderate to severe Hypoxemia (COPD).

→ Humidification isn’t needed because the mask entrains a much greater flow of room air.

→ The mixture of gas delivered to the patient approaches room air humidity.

Answer 17

VENTURI MASK

Question 18

is an estimation of the oxygen saturation level.

→ refers to the concentration of oxygen in the blood.

It measures the percentage of hemoglobin binding sites in the bloodstream occupied by oxygen

Answer 18

Peripheral Capillary Oxygen Saturation (SpO2)

Question 19

is a state in which oxygen is not available in sufficient amounts at the tissue level to maintain adequate homeostasis;

Answer 19

Hypoxia

Question 20

SpO2 of 90% to 94% = ______ hypoxia
→ Provide supplemental oxygen via ___ or ____

Answer 20

mild to moderate

nasal cannula
or simple face mask.

Question 21

SpO2 of 85% to 89% = ____ hypoxia

→ Provide supplemental oxygen via ____

Answer 21

moderate to severe

face mask with a reservoir.

Question 22

SpO2 below 85% = ___ hypoxemia

→ ___ and ___

Answer 22

severe to life-threatening

Endotracheal Intubation and Mechanical Ventilation