Oxygen EMT

With a good mask-to-face seal and an oxygen flow rate of 15 L/min, the nonrebreathing mask is capable of delivering up to ______% inspired oxygen

• 70

• 80

• 90

• 100

Which of the following oxygen flowmeters is NOT affected by gravity and can be used in any position when attached to an oxygen cylinder?

• Vertical-position flowmeter

• Bourdon-gauge flowmeter

•  Ball-and-float flowmeter

• Pressure-compensated flowmeter

Oxygen toxicity is a condition in which:

• excessive blood oxygen levels cause the hypoxic patient to stop breathing

•  cellular tissue damage occurs from excessive oxygen levels in the blood

• significantly low levels of oxygen in the blood damage the cellular tissue

• decreased levels of oxygen in the blood result in free radical production

What is the primary role of oxygen in emergency medical treatment (EMT)?

• To provide energy to cells

• To remove carbon dioxide from the body

• To support cellular respiration

• To act as a sedative

Tags

NGSS.HS-LS1-7

Which device is commonly used by EMTs to deliver high concentrations of oxygen to patients?

• Nasal cannula

• Venturi mask

• Non-rebreather mask

• Simple face mask

What is the maximum percentage of oxygen that can be delivered using a non-rebreather mask?

• 70%

• 80%

• 90%

• 100%

In the context of EMT, what does the term 'oxygen saturation' refer to?

• The amount of oxygen in the air

• The percentage of hemoglobin binding sites in the bloodstream occupied by oxygen

• The total volume of oxygen in the lungs

• The rate at which oxygen is consumed by the body

Which of the following is a potential risk of administering too much oxygen to a patient?

• Oxygen toxicity

• Hyperventilation

• Hypoxia

• Anemia

Tags

NGSS.HS-LS1-3

What is the function of a pulse oximeter in emergency medical settings?

• To measure blood pressure

• To assess oxygen saturation levels

• To monitor heart rate

• To deliver oxygen to patients

How does oxygen therapy help patients with respiratory distress?

• By increasing carbon dioxide levels

• By decreasing blood pressure

• By improving oxygen delivery to tissues

• By reducing heart rate