Chapter 15 - Respiratory Emergencies

Which of the following statements regarding the hypoxic drive is MOST correct? A. The hypoxic drive stimulates a person to breathe on the basis of low oxygen levels. B. Chronic carbon dioxide elimination often results in activation of the hypoxic drive. C. The hypoxic drive serves as the primary stimulus for breathing in healthy individuals. D. 100% supplemental oxygen will always cause apnea in patients with a hypoxic drive.

A. The hypoxic drive stimulates a person to breathe on the basis of low oxygen levels.

Hyperventilation could be associated with all of the following, EXCEPT: A. a narcotic overdose. B. a respiratory infection. C. an overdose of aspirin. D. high blood glucose levels.

A. a narcotic overdose.

In what area of the lungs does respiration occur? A. alveoli B. trachea C. bronchi D. capillaries

A. alveoli

You receive a call for a 70-year-old female with respiratory distress. Her husband tells you that she has congestive heart failure; however, he does not think that she has been taking her medications as prescribed. The patient is laboring to breathe, appears tired, and has cyanosis around her lips. You should: A. assist her ventilations with a bag-mask device. B. apply a pulse oximeter and obtain vital signs. C. administer oxygen via a nonrebreathing mask. D. obtain a complete list of all of her medications.

A. assist her ventilations with a bag-mask device.

Alkalosis is a condition that occurs when: A. blood acidity is reduced by excessive breathing. B. dangerous acids accumulate in the bloodstream. C. the level of carbon dioxide in the blood increases. D. slow, shallow breathing eliminates too much carbon dioxide.

A. blood acidity is reduced by excessive breathing.

Asthma is caused by a response of the: A. immune system. B. endocrine system. C. respiratory system. D. cardiovascular system.

A. immune system.

You are assisting an asthma patient with his prescribed metered-dose inhaler. After the patient takes a deep breath and depresses the inhaler, you should: A. instruct him to hold his breath for as long as he comfortably can. B. immediately reapply the oxygen mask and reassess his condition. C. advise him to exhale forcefully to ensure medication absorption. D. allow him to breathe room air and assess his oxygen saturation.

A. instruct him to hold his breath for as long as he comfortably can.

Which of the following statements regarding anaphylaxis is correct? A. Patients with asthma are at lower risk of developing anaphylaxis. B. Anaphylaxis is characterized by airway swelling and hypotension. C. Most anaphylactic reactions occur within 60 minutes after exposure. D. The signs of anaphylaxis are caused by widespread vasoconstriction.

B. Anaphylaxis is characterized by airway swelling and hypotension.

When auscultating the lungs of a patient with respiratory distress, you hear adventitious sounds. This means that the patient has: A. normal breath sounds. B. abnormal breath sounds. C. diminished breath sounds. D. an absence of breath sounds.

B. abnormal breath sounds.

An alert patient presents with a regular pattern of inhalation and exhalation and breath sounds that are clear and equal on both sides of the chest. These findings are consistent with: A. an obstructed airway. B. adequate air exchange. C. respiratory difficulty. D. respiratory insufficiency.

B. adequate air exchange.

When administering supplemental oxygen to a hypoxemic patient with a chronic lung disease, you should: A. recall that most patients with chronic lung diseases are stimulated to breathe by increased carbon dioxide levels. B. adjust the flow rate accordingly until you see symptom improvement, but be prepared to assist his or her ventilations. C. begin with a low oxygen flow rate, even if the patient is unresponsive, because high-flow oxygen may depress his or her breathing. D. avoid positive-pressure ventilation because the majority of patients with chronic lung disease are at increased risk for lung trauma.

B. adjust the flow rate accordingly until you see symptom improvement, but be prepared to assist his or her ventilations.

A 62-year-old man with a history of congestive heart failure presents with severe respiratory distress and an oxygen saturation of 82%. When you auscultate his lungs, you hear widespread rales. He is conscious and alert, is able to follow simple commands, and can only speak in two- to three-word sentences at a time. You should: A. place him in a position of comfort, deliver oxygen via nasal cannula, and closely monitor his breathing. B. apply a continuous positive airway pressure (CPAP) device, monitor his blood pressure, and observe him for signs of improvement or deterioration. C. force fluid from his alveoli by hyperventilating him with a bag-mask device at a rate of at least 20 breaths/min. D. place him in a supine position and assist his ventilations with a bag-mask device and high-flow oxygen.

B. apply a continuous positive airway pressure (CPAP) device, monitor his blood pressure, and observe him for signs of improvement or deterioration.

The respiratory distress that accompanies emphysema is caused by: A. repeated exposure to cigarette smoke. B. chronic stretching of the alveolar walls. C. massive constriction of the bronchioles. D. acute fluid accumulation in the alveoli.

B. chronic stretching of the alveolar walls.

A young female is unconscious after intentionally ingesting a large amount of aspirin. You will MOST likely find her respirations: A. slow and deep. B. deep and rapid. C. slow and shallow. D. rapid and shallow.

B. deep and rapid.

The two processes that occur during respiration are: A. ventilation and diffusion. B. inspiration and expiration. C. diffusion and oxygenation. D. oxygenation and ventilation.

B. inspiration and expiration.

A 60-year-old male presents with acute respiratory distress. He is conscious and alert, has pink and dry skin, and has respirations of 24 breaths/min with adequate depth. Which of the following treatment modalities is MOST appropriate for this patient? A. assisted ventilation with a bag-mask device and a head-to-toe exam B. oxygen via nonrebreathing mask and a focused secondary assessment C. positive-pressure ventilations and immediate transport to the closest hospital D. oxygen via a nasal cannula, vital signs, and prompt transport to the hospital

B. oxygen via nonrebreathing mask and a focused secondary assessment

A 22-year-old female patient is complaining of dyspnea and numbness and tingling in her hands and feet after an argument with her fiancé. Her respirations are 40 breaths/min. You should: A. have her breathe into a paper or plastic bag. B. provide reassurance and give oxygen as needed. C. request a paramedic to give her a sedative drug. D. position her on her left side and transport at once.

B. provide reassurance and give oxygen as needed.

When the level of arterial carbon dioxide rises above normal: A. the brain stem inhibits respirations. B. respirations increase in rate and depth. C. exhalation lasts longer than inhalation. D. respirations decrease in rate and depth.

B. respirations increase in rate and depth.

Which of the following conditions would LEAST likely result in hypoxia? A. pleural effusion B. severe anxiety C. pulmonary edema D. prolonged seizures

B. severe anxiety

Harsh, high-pitched inspiratory sounds are characteristic of: A. rales. B. stridor. C. rhonchi. D. wheezing.

B. stridor.

Which of the following statements regarding pulse oximetry is correct? A. The pulse oximeter is a valuable assessment tool that measures the percentage of red blood cells that contain hemoglobin molecules. B. Caution must be exercised when using the pulse oximeter on a patient with carbon monoxide poisoning because falsely low readings are common. C. Pulse oximetry measures the percentage of hemoglobin that is saturated with oxygen, but does not measure the actual hemoglobin content of the blood. D. Most otherwise healthy patients can maintain adequate oxygenation and good skin color with oxygen saturation readings as low as 70% to 80%.

C. Pulse oximetry measures the percentage of hemoglobin that is saturated with oxygen, but does not measure the actual hemoglobin content of the blood.

You are dispatched to a residence for a 67-year-old female who was awakened by shortness of breath and sharp chest pain. Her husband tells you that she was recently discharged from the hospital after having hip surgery. Your assessment reveals dried blood around her mouth, facial cyanosis, and an oxygen saturation of 88%. This patient's presentation is MOST consistent with: A. acute pulmonary edema. B. right-sided heart failure. C. acute pulmonary embolism. D. spontaneous pneumothorax.

C. acute pulmonary embolism.

You are dispatched to an apartment complex where a 21-year-old female has apparently overdosed on several narcotic medications. She is semiconscious and has slow, shallow respirations. You should: A. insert an oropharyngeal airway and perform oral suctioning. B. apply oxygen via a nonrebreathing mask and transport at once. C. insert a nasopharyngeal airway and begin assisted ventilation. D. place her in the recovery position and monitor for vomiting.

C. insert a nasopharyngeal airway and begin assisted ventilation.

Acute pulmonary edema would MOST likely develop as the result of: A. right-sided heart failure. B. severe hyperventilation. C. toxic chemical inhalation. D. an upper airway infection.

C. toxic chemical inhalation.

Which of the following statements regarding severe acute respiratory syndrome (SARS) is correct? A. Multiple bacteria have been identified as being the cause of SARS. B. SARS is most commonly transmitted by direct contact with blood. C. The onset of SARS is typically marked by acute, severe pneumonia. D. SARS is a viral infection that often begins with flulike symptoms.

D. SARS is a viral infection that often begins with flulike symptoms.

A conscious and alert 29-year-old female with a history of asthma complains of difficulty breathing that began after her morning jog. The temperature outside is 40°F (5°C). On exam, you hear bilateral expiratory wheezing. After providing 100% oxygen, you should: A. place her in a recumbent position to facilitate breathing. B. contact medical control and administer an antihistamine. C. call medical control and ask how to proceed with treatment. D. determine if she has been prescribed a beta-agonist inhaler.

D. determine if she has been prescribed a beta-agonist inhaler.

At the onset of an acute asthma attack, patients commonly experience difficulty breathing and: A. audible stridor. B. rales and rhonchi. C. profound cyanosis. D. expiratory wheezing.

D. expiratory wheezing.

In order for efficient pulmonary gas exchange to occur: A. the percentage of inhaled carbon dioxide must exceed the percentage of inhaled oxygen. B. there must be low quantities of pulmonary surfactant to allow for full alveolar expansion. C. the pulmonary capillaries must be completely constricted and the alveoli must be collapsed. D. oxygen and carbon dioxide must be able to freely diffuse across the alveolar-capillary membrane.

D. oxygen and carbon dioxide must be able to freely diffuse across the alveolar-capillary membrane.

When assessing for fluid collection in the lungs during auscultation of lung sounds, you should: A. note the presence of a high-pitched whistling sound, which is an indicator of fluid in the lungs. B. pay special attention to the exhalation phase since this is when you will likely hear rales or rhonchi. C. auscultate the posterior chest first and compare the apex of one lung to the base of the opposite lung. D. start at the lower lung fields and determine at which level you start hearing clear breath sounds.

D. start at the lower lung fields and determine at which level you start hearing clear breath sounds.

Common signs and symptoms of acute hyperventilation syndrome include: A. altered mental status and bradycardia. B. unilateral paralysis and slurred speech. C. anxiety, dizziness, and severe bradypnea. D. tachypnea and tingling in the extremities.

D. tachypnea and tingling in the extremities.