EMT HW Chp. 11 Airway Management

An oxygen cylinder should be taken out of service and refilled when the pressure inside it is less than: A. 500 psi. B. 200 psi. C. 1,500 psi. D. 1,000 psi.

A. 500 psi.

Which of the following oxygen flowmeters is NOT affected by gravity and can be used in any position when attached to an oxygen cylinder. A. Bourdon-gauge flowmeter B. Ball-and-float flowmeter C. Vertical-position flowmeter D. Pressure- compensated flowmeter

A. Bourdon-gauge flowmeter

Which of the following organs or tissues can survive the longest without oxygen? A. Muscle B. Kidneys C. Heart D. Liver

A. Muscle

High- flow oxygen with a nasal cannula during the preoxygenation phase of endotracheal intubation is called: A. apneic oxygenation B. denitrogenation C. passive ventilation D. active ventilation

A. apneic oxygenation

A patient who is suspected of being hypoxic and is breathing adequately should be given supplemental oxygen with a: A. nonbreathing mask. B. mouth-to-mouth device. C. bag-mask device. D. nasal

A. nonbreathing mask.

The diaphragm is innervated by the __________ nerve, which allows it to contract. A. phrenic B. vestibulocochlear C. hypoglossal D. vagus

A. phrenic

Structures of the lower airway include all of the following, EXCEPT the: A. the epiglottis B. the trachea C. bronchioles D. alveoli

A. the epiglottis

What is the MOST common cause of airway obstruction in an unconscious patient? A. Aspirated fluid B. The tongue C. Vomitus D. Blood clots

B. The tongue

Oxygen toxicity is a condition in which: A. decreased levels of oxygen in the blood result in free radical production. B. cellular tissue damage occurs from excessive oxygen levels in the blood. C. excessive blood oxygen levels cause the hypoxic patient to stop breathing. D. simnifically low levels of oxygen in the blood damage de cellular tissue.

B. cellular tissue damage occurs from excessive oxygen levels in the blood.

The presence of elevated carbon dioxide levels in the blood is called: A. hypoxemia B. hypercarbia C. acidosis D. hypoxia

B. hypercarbia

The hypoxic drive is influenced by: A. high blood oxygen levels B. low blood oxygen levels C. low blood carbon dioxide levels D. high blood carbon dioxide levels

B. low blood oxygen levels

The pressure of gas in a full cylinder of oxygen is approximately __________ pounds per square inch (psi). A. 1,000 B. 500 C. 2,000 D. 3,000

C. 2,000

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. A. 70 B. 80 C. 90 d. 100

C. 90

Which of the following structures is NOT found in the upper airway? A. Larynx B. Pharynx C. Bronchus D. Oropharynx

C. Bronchus

Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called: A. eupneic respirations. B. ataxic respirations. C. Cheyne-Stokes respirations. D. agonal respirations.

C. Cheyne-Stokes respirations.

Which of the following is a late sign of hypoxia? A. Tachycardia B. Restlessness C. Cyanosis D. Anxiety

C. Cyanosis

Which of the following factors will cause a reduction in minute in an adult? A. Increased tidal volume B. Slight increase in respiratory rate C. Shallow breathing D. Respirations of 20 breaths/min

C. Shallow breathing

At a flow rate of 6 L/min, a nasal cannula can deliver an approximate oxygen concentration of up to: A. 35% B. 24% C. 52% D. 44%

D. 44%

Which of the following patients is breathing adequately? A. A conscious male with respirations of 18 breath/min and reduced tidal volume. B. A conscious female with facial cyanosis and rapid, shallow respirations. C. An unconscious 52-year-old female with snoring respirations and cool, pale skin. D. A conscious male with respirations of 19 breaths/min and pink skin.

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

Ga exchange in the lungs is facilitated by: A. pulmonary capillary contrition. B. surfactant-destroying organisms. C. water or blood within the alveoli. D. adequate amounts of surfactant.

D. adequate amounts of surfactant.