Oxygen

Question 1

Oxygen - Class

Answer 1

Class: Gas

Question 2

Oxygen - MOA

Answer 2

MOA
Enters thru resp system and transported to hemoglobin in RBCs

Required for breakdown of glucose into useable energy – ATP (adenosine triphosphate)

Increases O2 concentration in alveoli – therefore increase O2 sat for hemoglobin – reducing size of infracted tissue during acute MI for pt hypoxemic on room air

Question 3

Oxygen - Indications

Answer 3

Indications
Hypoxia
Ischemic chest pain with SP02 <95%
Resp insufficiency
Confirmed for suspected C0 poisoning or othering causes of decreased tissue oxygenation
Critical pt

Question 4

Oxygen - Contraindications

Answer 4

Contraindication:
Oxygen should not be withheld in critical or injured pt

Question 5

Oxygen - Precaution

Answer 5

Precautions
Use with caution on COPD pt

Respirations are often regulated by level of oxygen in blood (hypoxic drive) and not C02 levels

Could suffered by resp depression if high concent. Oxygen is delivered for long time (>18 hours)

Question 6

Oxygen - Interactions

Answer 6

Interactions
Oxygen supports combustion vigorously so not should be used in explosive environment

Question 7

Oxygen - Side Effects

Answer 7

Side effects
Prolonged non-humidified high flow oxygen admin can cause drying of mucous membranes

Question 8

Oxygen - Dose

Answer 8

Dosages
Nasal cannula – 1-6 Lpm = 24-44%
Simple face mask: 8-10 Lpm = 40-60%
Partial non-rebreather mask: 6-10 Lpm = 35-60%
Non-rebreathing mask: 10-15Lpm = 80-95%
BVM: 12-20 Lpm = 90-100%

Question 9

Oxygen - Action Times

Answer 9

Action times
Onset – immediate
Peak: w/in <1 minute
Duration: <2
½ life: n/a

Question 10

Oxygen - Preparation

Answer 10

Preparation
Various commonly utilized pre-hospital cylinder
D tank: 400L
E tank: 660L
M tank: 3000L
H tank: 7080L

Question 11

Oxygen - Tank Factors

Answer 11

Tank Factors
Conversion factors required for calculation of tank durations
D tank: 0.16
E tank: 0.28
M tank: 1.56
H tank: 3.14