oxygen therapy

Question 1

oxygen

Answer 1

is an essential physiological need for survival.

Question 2

The human brain cannot function for longer than ______minutes without an adequate oxygen supply. It cannot be stored in the body and therefore the supply from the external world must be constant.

Answer 2

4-5

Question 3

A pulse oximeter is frequently used to monitor

Answer 3

he oxygen saturation of blood hemoglobin (SaO2)

Question 4

When a human being’s oxygen supply is interrupted or interfered with in any matter,

Answer 4

it is an emergency situation which must be dealt with quickly to prevent a life threatening situation.

Question 5

The major supply of oxygen is carried in

Answer 5

chemical combination by the hemoglobin in the blood.

Question 6

Normal oxygen values are

Answer 6

95-100%, values of less than 85% are an indication that the body is not receiving adequate oxygenation

Question 7

Oxygen is administered by artificial means when

Answer 7

the patient cannot obtain adequate amounts from the atmosphere to support the needs of the body.

Question 8

Settings that do not have the luxury of piped oxygen,

Answer 8

will utilize oxygen that is compressed and supplied in tanks.

Question 9

In most healthcare settings, oxygen is piped into patient rooms, and other areas of the facility where patients may be

Answer 9

ex: operating rooms, procedural areas and imaging suites.

Question 10

Oxygen tanks

Answer 10

-Compressed oxygen is available in tanks of varying sizes.
-Most common size is the E cylinder.
-Tanks will have two regulator valves – one indicates how much oxygen is in the tank, and the other measures the rate of flow

Question 11

Nasal cannula

Answer 11

Most commonly used,
Oxygen is delivered in liters per minute – 1 to 4 LPM is usually prescribed for adults

Question 12

Face mask

Answer 12

-Used at rates no lower than 5 LPM as this rate is needed to flush the carbon dioxide from the mask.
-There are a variety of types – nonbreather, partial rebreather, and Venturi.

Question 13

oxygen is

Answer 13

Considered a medication and must be ordered by a physician.

Question 14

It is ____ okay to remove a pt from O2 therapy.

Answer 14

never

Question 15

Excessive amounts of oxygen may

Answer 15

produce toxic effects on the lungs and central nervous system or may depress ventilation

Question 16

excessive oxygen when administered to pts with chronic obstructive pulmonary disease (COPD)

Answer 16

could depress the respiratory drive and the pt may stop breathing.

Question 17

Safe placement of oxygen tanks

Answer 17

-Always stored upright in a storage rack, mobile O2 transport unit, or in a holder specifically designed for tank on bed, stretcher or wheelchair.
-Never placed on patient’s bed, stretcher
-Never placed directly on patient or between their legs.

Use of correct storage devices protects/prevents the regulator of the tank from accidently becoming compromised rendering the tank a dangerous projectile!

Question 18

Risk of Fire

Answer 18

-Oxygen is a component of the triad of fire!
-Patients receiving oxygen should never smoke.
-Care should be taken when using surgical prepping agents as some can be flammable.
-Avoid any activities that could provoke sparks.