Oxygen EMT

Which of the following is a late sign of hypoxia?

• Anxiety

• Cyanosis

• Tachycardia

• Restlessness

Which of the following patients is breathing adequately?

• A conscious male with respirations of 19 breaths/min and pink skin

• A conscious female with facial cyanosis and rapid, shallow respirations

• A conscious male with respirations of 18 breaths/min and reduced tidal volume

• An unconscious 52-year-old female with snoring respirations and cool, pale skin

An oxygen cylinder should be taken out of service and refilled when the pressure inside it is less than:

• 200 psi

•  500 psi

• 1,000 psi

• 1,500 psi

The hypoxic drive is influenced by:

• high blood oxygen levels

• low blood oxygen levels

• low blood carbon dioxide levels

• high blood carbon dioxide levels

Tags

NGSS.HS-LS1-3

A patient who is suspected of being hypoxic and is breathing adequately should be given supplemental oxygen with a:

• nasal cannula

• nonrebreathing mask

• bag-mask device

• mouth-to-mask device

At a flow rate of 6 L/min, a nasal cannula can deliver an approximate oxygen concentration of up to:

•  24%

• 35%

• 44%

•  52%

What is the primary role of oxygen in the human body?

• To provide energy

• To transport nutrients

• To support cellular respiration

• To regulate body temperature

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which of the following is a common sign of oxygen deficiency in the body?

• Hypertension

• Cyanosis

• Hyperglycemia

• Bradycardia

Tags

NGSS.HS-LS1-3

What is the chemical symbol for oxygen?

• O

• Ox

• O2

• O3

In emergency medical treatment, what is the purpose of administering supplemental oxygen?

• To increase blood pressure

• To enhance cellular oxygenation

• To decrease heart rate

• To improve digestion

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3