Which of the following lists best describes the path that oxygen must travel to get from the air to body cells?

a. Nasopharynx, oropharynx, trachea, alveoli

b. Oropharynx, larynx, trachea, bronchioles

c. Nose, pharynx, esophagus, bronchi, alveoli

d. Pharynx, larynx, trachea, alveoli, bronchioles

b. Oropharynx, larynx, trachea, bronchioles

You are assessing a patient who overdosed on a medication and is unresponsive. Given this

situation, what is the great concern regarding potential airway occlusion?

a. Spasm of the epiglottis

b. Swelling of the larynx

c. Collapse of the bronchi

d. Relaxation of the tongue

d. Relaxation of the tongue

You are observing a rescuer insert an oropharyngeal airway into the airway of a 36-year-old male who has overdosed. Which one of the following observations indicates correct technique?

once it is halfway in the mouth.

b. The rescuer uses a tongue depressor to press the back of the patient's tongue downward and then inserts

the oral airway upside down.

c. The rescuer inserts the oral airway in its normal anatomic position until the flange of the airway is 1 cm

above the patient's lips.

d. The rescuer inserts the oral airway sideways into the mouth and then rotates it 180 degrees once it has

.

a. The rescuer inserts the oral airway into the patient's mouth upside down and then turns it 180 degrees once

it is halfway in the mouth.

The walls of the capillaries are only one cell thick. This allows the exchange of nutrients and oxygen and waste products. The capillaries serve as the bridge between:

a. arterioles and venules.

b. the atrium right and the left atrium.

c. the pulmonary vein and the pulmonary artery.

d. arteries and veins.

a. arterioles and venules.

The National Institute of Occupational Safety and Health reports that ________ of all workplace injuries are back related.

1. 20 percent
2. 50 percent
3. 70 percent
4. 90 percent

Answer: a

Objective: 5-1

Reference: 128

National EMS organizations estimate that as many as ___ percent of workers have sustained back injuries.

1. 5
2. 10
3. 50
4. 80

Answer: c

Objective: 5-1

Reference: 128