Pima EMT Chapter 10 JB Learning Quiz

Suctioning the oral cavity of an adult should be accomplished within:

15 Seconds

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

44%

While assisting with respirations, you note gastric distention. In order to prevent or alleviate the distention, you should

All of these answers are correct

Tidal volume

Amount of air moved during one breath

In contrast to inhalation, exhalation:

Is a passive process caused by increased intratoracic

Ventilation/perusion (V/Q ratio) mismatch occurs when:

A disruption in blood flow inhibits the exchange of oxygen and carbon dioxide in the lungs, even though the alveoli are filled with fresh oxygen

Inhalation

Active part of breathing

Intrapulmonry shunting occurs when

Blood coming from the right side of the heart bypasses nonfunctional alveoli and returns to the left side of the heart in an unoxygenated state

Based on current guidelines, in which of the following situations should supplemental oxygen be administered

Exposure to carbon monoxide and an oxygen saturation of 95%

All of the following are signs of hypoxia EXCEPT

Dehydration

Inhalation occurs when the:

Diaphragm and intercostal muscles contract and cause a decrease in thoracic pressure.

Which of the following structures is contained within the mediastinum

Esophagus

Ventilation

Exchange of air between lungs and the enviroment

Exhalation

Part of breathing during which thorax size decreases

While providing CPAP to a patient in severe respiratory distress, you note that his heart has increased by 20 beats/min. He is conscious, but no longer following verbal commands. You should

Remove the CPAP device and ventilate him with a bag-valve mask

Central chemoreceptors located in the medulla provide feedback to increase the rate and depth of breathing when they sense.

Slight increases in carbon dioxide or a decrease in the pH of the cerebrospinal fluid

While eating dinner, your partner suddenly grabs his throat and has a panicked look on his face. He has a weak cough, faint inspiratory stridor, and cyanosis around the lips. You should

Stand behind him and administer abdominal thrusts

The proper technique for sizing an oroopharyngeal airway before insertion is to measure the device from:

The corner of the mouth to earlobe

A nasopharyngeal is insterted

With the bevel facing the septum if inserted into the right nare

Gas exchange in the lungs is facilitated by:

adequate amounts of surfacant