![]() Structures of the lower airway include all of the following, EXCEPT the: epiglottis To select the proper size oropharyngeal airway, you should measure from the: corner of the mouth to the earlobe. Your FIRST action should be to: log roll him as a unit to a supine position. You find him in a prone position his eyes are closed and he is not moving. There are no witnesses who can tell you what happened. You are dispatched to a residence where a middle-aged man was found unconscious in his front yard. At a flow rate of 6 L/min, a nasal cannula can deliver an approximate oxygen concentration of up to: 44%. You should: assist his ventilations with a bag-mask device. Further assessment reveals that his breathing is severely labored and his oxygen saturation is 80%. He is conscious but is unable to follow simple verbal commands. 104, 40 Which of the following patients would MOST likely require insertion of an oropharyngeal airway? a 40-year-old unconscious patient with slow, shallow respirations You and your partner are treating a 66-year-old man who experienced a sudden onset of respiratory distress. The partial pressure of oxygen in the alveoli is _ mm Hg, while the partial pressure of carbon dioxide in the alveoli is _ mm Hg. The MOST significant complication associated with oropharyngeal suctioning is: hypoxia due to prolonged suction attempts Gas exchange in the lungs is facilitated by: adequate amounts of surfactant. A ventilation/perfusion (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. ![]() Intrapulmonary 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. Tidal volume is defined as the volume of air that: moves into or out of the lungs in a single breath. You should: administer 100% oxygen via a nonrebreathing mask. Her respirations are 22 breaths/min and regular. She is conscious and alert and able to speak in complete sentences. What is the minute volume of a patient with a tidal volume of 500 mL, a dead space volume of 150 mL, and a respiratory rate of 16 breaths/min? 5,600 mL Which of the following patients should you place in the recovery position? a 31-year-old semiconscious male with low blood sugar and adequate breathing Which of the following structures is NOT found in the upper airway? bronchus The primary waste product of aerobic metabolism is: carbon dioxide A 51-year-old female presents with a sudden onset of difficulty breathing. You should: roll her onto her side and remove the oral airway. ![]() She suddenly begins regurgitating large amounts of vomit. You have inserted an oral airway and are ventilating an apneic woman with a bag-mask device. You should: reevaluate the rate and volume of your ventilations Which of the following statements regarding positive-pressure ventilation is correct? With positive-pressure ventilation, more volume is required to have the same effects as normal breathing. You elevate the patient's legs, but this action has no effect. When your partner reassesses his blood pressure, he notes that it has decreased significantly from previous readings. You are ventilating a 40-year-old uninjured man who is apneic but has a pulse. Inhalation occurs when the: diaphragm and intercostal muscles contract and cause a decrease in intrathoracic pressure The jaw-thrust maneuver is used to open the airway of patients with suspected: cervical spine injuries. ![]() An unconscious patient found in a prone position must be placed in a supine position in case he or she: requires cardiopulmonary resuscitation (CPR) The hypoxic drive-the primary stimulus to breathe for patients with certain chronic respiratory diseases-is influenced by: low blood oxygen levels. The process of exchanging oxygen and carbon dioxide between the alveoli and the blood of the capillaries is called: external respiration Which of the following statements regarding oxygen is correct? Oxygen supports the combustion process and may cause a fire. The MOST serious complication associated with using a nasopharyngeal airway in a patient with trauma to the head or face is: penetrating the cranium. What occurs when a patient is breathing very rapidly and shallowly? Air moves primarily in the anatomic dead space and does not participate in pulmonary gas exchange. cricoid In the presence of oxygen, the mitochondria of the cells convert glucose into energy through a process called: aerobic metabolism. The _ cartilage is a firm ring that forms the inferior part of the larynx.
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