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EMT CHAPTER 11 MASTER STUDY PACK
2026 PREMIUM SOLVED COMPENDIUM
โ When testing a mechanical suctioning unit, you should turn on the device, clamp the tubing, and ensure that it generates a vacuum pressure of more than: A. 100 mm Hg. B. 200 mm Hg. C. 300 mm Hg. D. 400 mm Hg. Answer: C โ The MOST significant complication associated with oropharyngeal suctioning is: A. oral abrasions from vigorous suctioning. B. hypoxia due to prolonged suction attempts. C. clogging of the catheter with thick secretions. D. vomiting from stimulating the anterior airway. Answer: B
โ Proper technique for suctioning the oropharynx of an adult patient includes: A. continuously suctioning patients with copious oral secretions. B. suctioning while withdrawing the catheter from the oropharynx. C. removing large, solid objects with a tonsil-tip suction catheter. D. suctioning for up to 1 minute if the patient is well oxygenated. Answer: B โ 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: A. perform a finger sweep of her mouth. B. insert a nasal airway and then suction her mouth. C. roll her onto her side and remove the oral airway. D. remove the oral airway and suction her oropharynx. Answer: C โ 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?
โ Which of the following organs or tissues can survive the longest without oxygen? A. muscle B. heart C. liver D. kidneys Answer: A โ The purpose of the pin-indexing system that has been established for compressed gas cylinders is to: A. ensure that the correct regulator is used for the cylinder. B. help you determine what type of oxygen regulator to use. C. prevent destroying or stripping the threads on the cylinder. D. reduce the cylinder pressure to a safe and more useful range. Answer: A โ The pressure of gas in a full cylinder of oxygen is approximately _______ pounds per square inch (psi).
A. 500
B. 1,
C. 1,
D. 2,
Answer: D โ 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. vertical-position flowmeter B. Bourdon-gauge flowmeter C. ball-and-float flowmeter D. pressure-compensated flowmeter Answer: B โ An oxygen cylinder should be taken out of service and refilled when the pressure inside it is less than: A. 200 psi. B. 500 psi. C. 1,000 psi.
โ 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 Answer: C โ Prior to applying a nonrebreathing mask on a patient, you must ensure that the: A. one-way valve is sealed. B. flow rate is set at 6 L/min. C. reservoir bag is fully inflated. D. patient has reduced tidal volume. Answer: C โ At a flow rate of 6 L/min, a nasal cannula can deliver an approximate oxygen concentration of up to: A. 24%.
B. 35%.
C. 44%.
D. 52%.
Answer: C โ The nasal cannula is MOST appropriately used in the prehospital setting: A. when the patient cannot tolerate a nonrebreathing mask. B. if the patient's nasopharynx is obstructed by secretions. C. if long-term supplemental oxygen administration is required. D. when the patient breathes primarily through his or her mouth. Answer: A โ The main advantage of the Venturi mask is: A. the ability to adjust the percentage of inspired oxygen when caring for a critically ill or injured patient. B. the use of its fine adjustment capabilities in the long-term management of physiologically stable patients. C. that it does not contain an oxygen reservoir, so the same percentage of oxygen can consistently be administered.
D. The majority of tidal volume reaches the lungs and diffuses across the alveolar- capillary membrane. Answer: B โ As the single EMT managing an apneic patient's airway, the preferred initial method of providing ventilations is the: A. mouth-to-mouth technique. B. one-person bag-mask device. C. manually triggered ventilation device. D. mouth-to-mask technique with a one-way valve. Answer: D โ You and your partner are treating a 66-year-old man who experienced a sudden onset of respiratory distress. He is conscious but is unable to follow simple verbal commands. Further assessment reveals that his breathing is severely labored and his oxygen saturation is 80%. You should: A. attempt to insert an oropharyngeal airway. B. assist his ventilations with a bag-mask device. C. apply a continuous positive airway pressure (CPAP) device and monitor his
breathing. D. apply high-flow oxygen via non-rebreathing mask. Answer: B โ Which of the following statements regarding positive-pressure ventilation is correct? A. Positive-pressure ventilation allows blood to naturally be pulled back to the heart from the body. B. With positive-pressure ventilation, more volume is required to have the same effects as normal breathing. C. To prevent hypotension, the EMT should increase the rate and force of positive-pressure ventilation. D. Unlike negative-pressure ventilation, positive-pressure ventilation does not affect the esophageal opening pressure. Answer: B โ How does positive-pressure ventilation affect cardiac output? A. There is no effect on cardiac output because positive-pressure ventilation is the act of normal breathing. B. It decreases intrathoracic pressure, which facilitates venous return to the heart and increases cardiac output.
C. 65%
D. 75%
Answer: B โ You and your partner are caring for a critically injured patient. Your partner is controlling severe bleeding from the patient's lower extremities as you attempt ventilations with a bag-mask device. After repositioning the mask several times, you are unable to effectively ventilate the patient. You should: A. begin ventilations using the mouth-to-mask technique. B. hyperextend the patient's head and reattempt ventilations. C. continue attempted ventilations and transport immediately. D. suction the patient's airway for 30 seconds and reattempt ventilations. Answer: A โ Which of the following statements regarding the one-person bag- mask device technique is correct? A. Bag-mask ventilations should be delivered every 2 seconds when the device is being operated by one person. B. The C-clamp method of holding the mask to the face is not effective when ventilating a patient with a bag-mask device.
C. Adequate tidal volume is often difficult to achieve when one EMT is operating the bag-mask device. D. The bag-mask device delivers more tidal volume and a higher oxygen concentration than the mouth-to-mask technique. Answer: C โ Despite your attempts to coach a conscious young female's respirations, she continues to hyperventilate with a marked reduction in tidal volume. You should: A. restrain her and provide ventilatory assistance. B. insert a nasopharyngeal airway and give oxygen. C. explain to her that you will assist her ventilations. D. ventilate her at the rate at which she is breathing. Answer: C โ All of the following will help minimize the risk of gastric distention when ventilating an apneic patient with a bag-mask device, EXCEPT: A. delivering each breath over 1 second. B. ensuring the appropriate airway position. C. ventilating the patient at the appropriate rate.
