Oxygen Therapy Quiz

Which statement about oxygen is true?

• It is a colored and flavored gas

• It is not essential for survival

• It makes up 21% of atmospheric air

• The heart does not rely on oxygen

When does oxygen become a “medication”?

• When mixed with carbon dioxide

• When administered via IV

• When given as a supplement to atmospheric air

• When used in an operating room

The main aim of oxygen therapy is to:

• Increase blood sugar

• Increase PAO2, PaO2, and SpO2

• Decrease carbon dioxide

• Decrease pulse rate

Oxygen therapy refers to administration of oxygen:

• Less than 21%

• Equal to atmospheric level

• Only during surgery

• More than 21%

Which of the following is a documented indication for oxygen therapy in adults?

• PaO2 > 80 mmHg

• PaCO2 > 50 mmHg

• PaO2 95%

Which of the following is NOT a reason to start oxygen therapy?

• Suspected hypoxemia

• Decreasing work of breathing

• Enhancing muscle tone

• Decreasing myocardial work

Which is a respiratory manifestation of hypoxemia?

• Tachycardia

• Cyanosis

• Hypertension

• Disorientation

Which is a neurological sign of poor oxygenation?

• Tachypnea

• Restlessness

• Cyanosis

• Bradycardia

Which of the following is a low-flow oxygen delivery device?

• Nasal cannula

• Venturi mask

• Oxygen hood

• Blending system

Which system provides a constant and fixed FiO2?

• Low-flow

• High-flow

• Reservoir

• Nasal catheter