Oxygen

Question 1

Class

Answer 1

Naturally occurring atmospheric gas

Question 2

Mechanism of Actions

Answer 2

Reverses hypoxemia

Question 3

Indications

Answer 3

Confirmed or expected hypoxemia, ischemic chest pain, respiratory insufficiency, prophylactically during air transport, confirmed or suspected carbon monoxide poisoning, all other causes of decreased tissue oxygenation, decreased level of consciousness.

Question 4

Contraindications

Answer 4

Certain patients with COPD will not tolerate oxygen concentrations over 35% hyperventilation

Question 5

Adverse reactions / side effects

Answer 5

Decreased level of consciousness (COPD patients) decreased respiratory drive in COPD patients, dry mucous membranes

Question 6

Drug interactions

Answer 6

none

Question 7

Adult dose

Answer 7

cardiac arrest and carbon monoxide poisoning - 100%

Hypoxemia: 10 to 15 L/min via NRB

COPD: 0 to 2 L / min via nasal cannula or 28% to 35 % venturi mask

Be prepared to provide ventilatory support if higher concentrations of oxygen are needed.

Question 8

Pedi dose

Answer 8

cardiac arrest and carbon monoxide poisoning - 100%

Hypoxemia: 10 to 15 L/min via NRB

COPD: 0 to 2 L / min via nasal cannula or 28% to 35 % venturi mask

Be prepared to provide ventilatory support if higher concentrations of oxygen are needed.

Question 9

Duration of action

Answer 9

Onset: immediate. Peak effect: not applicable

Duration: Less than 2 minutes

Question 10

Pregnancy class

Answer 10

Be familiar with liter flow rates and each type of delivery device used

Question 11

Special considerations

Answer 11

You can calculate your 02 bottle duration with the formula:

Constant*(PSI - 500psi)/ flow rate = minutes of duration

Tank constants

D size - 0.16
E size = 0.28
G size = 2.41
H and K size = 3.14
M size = 1.56

Ex. 0.16*(200 PSI-500 PSI) /2LPM = 120 minutes of 2 LPM