oxygen

Question 1

Inspiration (inhalation)

Answer 1

air into the lunges

Question 2

Expiration (exhalation)

Answer 2

Air moves out of the lunges

Question 3

Respiration

Answer 3

The process of delivering oxygen (O2) to the cells and the removal of carbon dioxide (CO2

Question 4

What does respiration involve

Answer 4

Alveolar gas exchange by diffusion
Transport of oxygen and carbon dioxide
Systemic diffusion of gases between capillaries and the tissues and cells

Question 5

FiO2

Answer 5

the fraction of inspired oxygen

Question 6

What is the FiO2 room air

Answer 6

21

Question 7

Sa02

Answer 7

The amount of oxygen that is in the blood carried to the extremities of the body (fingers, ears, nose, toes)
-Usually between 95%-100%

Question 8

PaO2

Answer 8

The partial pressure of oxygen in the arterial blood 80-100 mmHg

Question 9

Promoting airway clearance

Answer 9

Patient Positioning
Ambulation
Deep breathing and coughing exercises
Adequate hydration
Chest physio
Medications

Question 10

is oxygen flammable

Answer 10

no

Question 11

When is O2 given

Answer 11

when hypoxia is suspected/present

Question 12

Signs of hypoxia

Answer 12

Apprehension, anxiety, behavioral changes
↓’d LOC, confusion, drowsiness, altered concentration
↑’d HR, ↑’d rate and depth of respiration
Decreased lung sounds, adventitious lung sounds
SpO2 less than 90%
Dyspnea, use of accessory muscles, pallor, cyanosis, increased fatigue

Question 13

ways to assess ned

Answer 13

Clinical presentation of the patient
Blood gas analysis
Arterial blood gas (ABG)
Pulse oximetry

Question 14

Pulse Oximetry

Answer 14

Quick measure of what percentage of hemoglobin is saturated with oxygen
Normal – 95% to 100%

Question 15

Low Flow

Answer 15

Concentration of oxygen unknown and affected by respiratory rate and depth
Examples: nasal prongs, simple mask, non-rebreather mask, face tent

Question 16

High Flow

Answer 16

Delivers precise concentration of oxygen regardless of client’s respirations
Examples: Venturi mask, cold neb, Misty-ox, trach collars

Question 17

3 types of low flow

Answer 17

nasal prongs, simple face mack, non rebreather

Question 18

Nasal prongs

Answer 18

Oxygen flow meter is set between 1-6 LPM
gives FiO2’s of approximately 24-44%

Question 19

Nonrebreather mask

Answer 19

Used to deliver high Fi02’s in a emergency situations: trauma, transports, sudden desaturations
10-15LPM 60-80%

Question 20

Simple Mask

Answer 20

The face mask fits over the nose and mouth.
It is helpful when a patient needs a higher level of O2 or is not cooperative with the nasal cannula.
Set the oxygen flow meter between 5-10 LPM
Provides FiO2’s of approximately 40-60%

Question 21

Oxygen toxicity

Answer 21

The most detrimental effect of breathing a high concentration of oxygen is the development of oxygen toxicity.
It can occur in any client breathing oxygen concentrations of greater than 50% for more than 24 hours.
Clients most likely to develop oxygen toxicity are those who require high oxygen concentrations for extended periods

Question 22

Incentive Spirometry

Answer 22

Promotes improved ventilation, counteracts hypoventilation, loosens respiratory secretions, expands collapsed alveoli