Quiz 5: Airway, Respiratory Compromise, O2 Administration, Pulse Ox & Humidifiers

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

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

The jaw-thrust maneuver is used to open the airway of patients with suspected: A. Cervical spine injuries. B. Mandibular fractures. C. Upper airway swelling. D. Copious oral secretions.

A. Cervical spine injuries.

The leaf-shaped structure located superior to the larynx is called the: A. Epiglottis. B. Thyroid cartilage. C. Cricoid ring. D. Vallecula.

A. Epiglottis.

As the single EMT managing an apneic patient's airway, the preferred initial method of providing ventilations is the: A. Mouth-to-mask technique with a one-way valve. B. Manually triggered ventilation device. C. Mouth-to-mouth technique. D. One-person bag-mask device.

A. Mouth-to-mask technique with a one-way valve.

Which of the following patients would MOST likely require insertion of an oropharyngeal airway? A. A 64-year-old conscious patient with rapid and deep respirations. B. A 40-year-old unconscious patient with slow, shallow respirations. C. A 33-year-old semiconscious patient with reduced tidal volume. D. A 51-year- old confused patient with severely labored respirations.

B. A 40-year-old unconscious patient with slow, shallow respirations.

Which of the following statements regarding the one-person bag-mask device technique is correct? A. The bag-mask device delivered more tidal volume and a higher oxygen concentration than the mouth-to-mask technique. B. Adequate tidal volume is often difficult to achieve when one EMT is operating the bag-mask device. C. The C-clamp method of holding the mask to the face is not effective when ventilating a patient with a bag-mask device. D. Bag-mask ventilations should be delivered every 2 seconds when the device is being operated by one person.

B. Adequate tidal volume is often difficult to achieve when one EMT is operating the bag-mask device.

A 23-year-old male experienced severe head trauma after his motorcycle collided with an oncoming truck. He is unconscious, has rapid and shallow breathing, and has copious bloody secretions in his mouth. How should you manage his airway? A. Suction his oropharynx with a rigid catheter until all secretions are removed. B. Alternate 15 seconds of oral suctioning with 2 minutes of assisted ventilation. C. Insert a nasopharyngeal airway and provide suction and assisted ventilations. D. Provide continuous ventilations with a bag-mask device to minimize hypoxia.

B. Alternate 15 seconds of oral suctioning with 2 minutes of assisted ventilation.

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

B. Cheyne-Stokes respirations.

Inhalation occurs when the: A. Diaphragm and intercostal muscles relax and cause an increase in intrathoracic pressure. B. Diaphragm and intercostal muscles contract and cause a decrease in intrathoracic pressure. C. Diaphragm ascends and the intercostal muscles contracts, causing a decrease in intrathoracic pressure. D. Diaphragm and intercostal muscles ascend and cause an increase in intrathoracic pressure.

B. Diaphragm and intercostal muscles contract and cause a decrease in intrathoracic pressure.

Hypoxia is MOST accurately defined as: A. Low venous oxygen levels. B. Inadequate oxygen to the tissues and cells. C. An increase in carbon dioxide in the blood. D. A decrease in arterial oxygen levels.

B. Inadequate oxygen to the tissues and cells.

All of the following will help minimize the risk of gastric dissension when ventilating an apneic patient with a bag-mask device, EXCEPT: A. Ensuring the appropriate airway position. B. Increasing the amount of delivered tidal volume. C. Delivering each breath over 1 second. D. Ventilating the patient at the appropriate rate.

B. Increasing the amount of delivered tidal volume.

In contrast to inhalation, exhalation: A. Occurs when the diaphragm lowers and expels air from the lungs. B. It is a passive process caused by increased intrathoracic pressure. C. Is an active process caused by decreased intrathoracic pressure. D. Requires muscular effort to effectively expel air from the lungs.

B. It is a passive process caused by increased intrathoracic pressure.

A patient who is suspected of being hypoxic and is breathing adequately should be given supplemental oxygen with a: A. Nasal cannula. B. Nonrebreathing mask. C. Mouth-to-mask device. D. Bag-mask device.

B. Nonrebreathing mask.

A 19-year-old female is found unconscious by her roommate. Your primary assessment reveals that her breathing is inadequate. As you insert an oropharyngeal airway, she begins to gag violently. You should: A. Select a smaller oropharyngeal airway and attempt to insert it. B. Remove the airway and be prepared to suction her oropharynx. C. Continue to insert the airway as you suction her oropharynx. D. Insert the airway no further but leave it in place as a bite block.

B. Remove the airway and be prepared to suction her oropharynx.

You are ventilating a patient with a stoma; however, air is escaping from the mouth and nose. To prevent this, you should: A. Thoroughly suction the stoma. B. Seal the mouth and nose. C. Ventilate with less pressure. D. Thrust the jaw forward.

B. Seal the mouth and nose.

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

B. The tongue.

You have inserted an oral airway and are ventilating an apneic woman with a bag-mask device. She suddenly begins regurgitating large amounts of vomit. You should FIRST: A. Perform a finger sweep of her mouth. B. Remove the oral airway and suction her oropharynx. C. Roll her onto her side and remove the oral airway. D. Insert a nasal airway and then suction her mouth.

C. Roll her onto her side and remove the oral airway.

Proper technique for suctioning the oropharynx of an adult patient includes: A. Removing large, solid objects with a tonsil-tip suction catheter. B. Suctioning for up to 1 minute if the patient is well oxygenated. C. Suctioning while withdrawing the catheter from the oropharynx. D. Continuously suctioning patients with copious oral secretions.

C. Suctioning while withdrawing the catheter from the oropharynx.

A nasopharyngeal airway is inserted: A. Into the larger nostril with the tip pointing away from the septum. B. Into the smaller nostril with the tip following the roof of the nose. C. With the bevel facing the septum if inserted into the right nare. D. With the bevel pointing downward if inserted into the left nare.

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

An adult at rest should have a respiratory rate that ranges between: A. 10 and 18 breaths/min. B. 8 and 15 breaths/min. C. 16 and 24 breaths/min. D. 12 and 20 breaths/min.

D. 12 and 20 breaths/min.

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

D. 44%.

The primary waste product of aerobic metabolism is: A. Lactic acid. B. Adenosine triphosphate. C. Pyruvic acid. D. Carbon dioxide.

D. Carbon dioxide.

To select the proper size oropharyngeal airway, you should measure from the: A. Angle of the jaw to the center of the mouth. B. Corner of the mouth to the superior ear. C. Center of the mouth to the posterior ear. D. Corner of the mouth to the earlobe.

D. Corner of the mouth to the earlobe.

A 37-year-old male has an apparent foreign body airway obstruction. He is conscious and alert and is coughing forcefully. His skin is pink, warm, and moist. The MOST appropriate treatment for this patient includes: A. Finger sweeps to remove the obstruction. B. Performing a series of abdominal thrusts. C. A series of back blows and chest thrusts. D. Encouraging him to cough and transporting.

D. Encouraging him to cough and transporting.

The MOST significant complication associated with oropharyngeal suctioning is: A. Oral abrasions from vigorous suctioning. B. Vomiting from stimulating the anterior airway. C. Clogging of the catheter with thick secretions. D. Hypoxia due to prolonged suction attempts.

D. Hypoxia due to prolonged suction attempts.