Ch 10 - Chapter Test
17. To determine the duration of flow for an oxygen cylinder, you subtract the safe residual pressure from the gauge pressure in psi (pounds per square inch) and multiply by the cylinder constant divided by the flow rate in liters per minute. The safe residual pressure is always: A. 200 psi. B. 20 psi. C. 120 psi. D. 100 psi.
A. 200 psi.
8. A nonrebreather mask at 12 to 15 liters per minute will generally provide the patient what percentage of oxygen? A. 80 to 100 B. 60 to 80 C. 24 to 44 D. 16 to 21
A. 80 to 100
19. Which of the following is acceptable for maintaining a seal between an oxygen cylinder and regulator? A. Gasket B. Grease plug C. Medical grade adhesive tape D. Pop-off valve
A. Gasket
23. Which of the following patients requires immediate assisted ventilations? A. Patient is unresponsive to painful stimuli and breathing noisily and slowly. B. Patient is speaking in complete sentences and gesturing to you. C. Patient is visibly short of breath but mentally alert. D. Patient is becoming anxious and loosening his collar.
A. Patient is unresponsive to painful stimuli and breathing noisily and slowly.
32. When does respiratory distress change to respiratory failure? A.When the respiratory challenge continues, the systems cannot keep up with the demand, and skin color and mental status change B.When the patient who is short of breath with noisy respiration and presenting in the tripod position is able to meet rising demands for oxygen C.When the patient goes into arrest, completely ceasing to breathe and losing consciousness D.When a respiratory challenge begins and a patient moves from being able to speak and breathe normally to beginning to have difficulty breathing
A. When the respiratory challenge continues, the systems cannot keep up with the demand, and skin color and mental status change
11. The condition when oxygen levels are insufficient for the body's tissues is called: A. hypoxia. B. hyperventilation. C. hypotension. D. hypercapnia.
A. hypoxia.
3. The movement of oxygen and carbon dioxide across the cell membranes from the capillaries is called: A. internal respiration. B. dehydration. C. external respiration. D. oxygenation.
A. internal respiration.
31. The difference between a partial rebreather mask and a nonrebreather mask is that a partial rebreather mask: A.lacks a one-way valve in the opening to the reservoir bag. B.is used to assist ventilations. C.provides higher-concentration oxygen. D.delivers greater oxygen flow.
A. lacks a one-way valve in the opening to the reservoir bag.
4. Ventilation involves: A. negative and positive pressure. B. maintaining a depressurized state. C. positive, but no negative, pressure. D. negative, but no positive, pressure.
A. negative and positive pressure.
25. You are aggressively ventilating an adult patient with a bag-valve mask when you notice that his previously strong pulse is getting weaker. You should: A.reduce the volume of the ventilations. B.begin chest compressions. C.increase the concentration of oxygen. D.reduce the concentration of oxygen.
A. reduce the volume of the ventilations.
38. You are attempting to replace the oxygen cylinder in your truck. After removing the regulator from the old cylinder, removing the old cylinder, and placing the new cylinder in the oxygen compartment, you attempt to connect the regulator. The new cylinder has a yellow stripe around it instead of a green one but was stored with the green cylinders. You are unable to get the regulator to seat properly and it will not turn. You should: A. remove the cylinder and get a green cylinder. B. replace the oxygen regulator with a new one. C. put the old cylinder back on the truck. D. attempt to force the regulator onto the cylinder.
A. remove the cylinder and get a green cylinder.
40. What device is used to perform mouth-to-mask ventilation? A.Pocket face mask B.Stoma C.Automatic transport ventilator D.Bag-valve mask
A.Pocket face mask
26. A person breathes faster if the chemoreceptors have detected a buildup of: A. carbon dioxide. B. hydrogen. C.carbon monoxide. D.oxygen.
A.carbon dioxide.
9. Which equation shows calculation of the minute volume if tidal volume is TV, minute volume is MV, and respiratory rate is RR? A. RR minus− TV = MV B. TV times × RR = MV C. RR/TV = MV D. TV + RR = MV
B. TV × RR = MV
42. Of the three types of oxygen flowmeters, which one can only be used upright? A.Constant flow selector valve B.Pressure-compensated flowmeter C.Bourdon gauge flowmeter D.Hudson gauge flowmeter
B. Pressure-compensated flowmeter
29. The EMT assesses the ABCs of Airway, Breathing, and Circulation. Which of these is important to the proper functioning of the respiratory process? A.Breathing B.Airway, breathing, and circulation C.Airway and breathing D.Airway
B. Airway, breathing, and circulation
21. You have arrived at the scene of a call for a "man down." As you enter the residence, you note that your patient is a male in his mid-60s who is awake but does not seem to acknowledge your presence. He is perspiring profusely, has cyanosis of his ears and lips, and has rapid, shallow respirations. Which of the following should you do first? A. Listen to his lung sounds. B. Assist ventilations with a bag-valve mask and supplemental oxygen. C. Check for a radial pulse. D. Obtain the patient's medical history.
B. Assist ventilations with a bag-valve mask and supplemental oxygen.
2. Which of the following is the best device to deliver high-concentration oxygen to a breathing patient? A. Nasal cannula B. Nonrebreather mask C. Oropharyngeal airway D. Simple face mask
B. Nonrebreather mask
18. Which of the following describes why fast respiration may decrease minute volume? A. The rate causes turbulence in the trachea that increases the friction and decreases the amount of air movement. B. The lungs may not have the time to fill and exchange gas. C. It is due to the delay in the movement of the intercostal muscles and the pleural space. D. The rate does not decrease minute volume; it actually increases.
B. The lungs may not have the time to fill and exchange gas.
15. A ________ is not typically used in the prehospital setting for oxygen administration. A. nasal cannula B. partial rebreather mask C. tracheostomy mask D. regulator
B. partial rebreather mask
39. In assessing a patient's breathing, what is your first question? A.Is his breathing adequate or inadequate? B.Is he breathing? C.Is he exhibiting signs of hypoxia? D.How close is he to respiratory arrest?
B.Is he breathing?
33. The movement of oxygen and carbon dioxide between the alveoli and circulating blood is called: A.internal respiration. B.pulmonary respiration. C.cellular respiration. D.osmosis.
B.pulmonary respiration.
24. What is the MOST dangerous breathing sign? A.Inadequate minute volume B.Too fast or too slow C.No breathing D.Irregular
C. No breathing
10. Which of the following statements BEST describes the exchange of gas in the alveoli? A. Blood moves from the left heart to the lungs, air arrives in the alveoli sacks, and diffusion occurs. B. Air moves into the airway, blood arrives via the pulmonary veins, and osmosis occurs. C. Air moves into the alveoli, blood is transported by the pulmonary capillaries, and diffusion occurs. D. Blood moves by way of the pulmonary capillaries, air arrives at the alveoli, and osmosis occurs.
C. Air moves into the alveoli, blood is transported by the pulmonary capillaries, and diffusion occurs.
44. Which of the following colors identifies an oxygen cylinder? A.Orange and red B.Blue and yellow C.Green and white D.Black and tan
C. Green and white
13. Which of the following is NOT characteristic of a bag-valve mask system? A. It must have a self-refilling shell. B. It has a non-jam valve. C. It has a 15/25 respiratory fitting. D. It is nonrebreathing.
C. It has a 15/25 respiratory fitting.
6. In the equation 350 mL (500 dash- 150 dead air space) times × 16 bpm = 5,600 mL, 350 mL indicates: A. dead air space. B. the minute volume. C. the amount of air that reaches the alveoli. D. the tidal volume.
C. the amount of air that reaches the alveoli.
30. The oxygen flow rate for a nasal cannula should not exceed ________ liters per minute. A.4 B.8 C.6 D.2
C.6
34. Which of the following patients requires the administration of supplemental oxygen via nonrebreather mask or nasal cannula? A.A 60-year-old woman with a history of chronic obstructive pulmonary disease (COPD) who can speak only two or three words at a time without a breath B.A 6-year-old male with a history of asthma whose breath sounds are silent and who is drowsy C.A 24-year-old woman who is visibly short of breath and anxious D.A 31-year-old male who is unresponsive due to an overdose of narcotics
C.A 24-year-old woman who is visibly short of breath and anxious
37. You are ventilating an adult patient with a bag-valve mask when you notice that his abdomen is getting bigger. What is happening and what could have prevented this from happening? A.Decreasing cardiac output; increased volume B.Gastric distention; suctioning the airway C.Gastric distention; using airway adjuncts when ventilating D.Hyperventilation; decreased volume
C.Gastric distention; using airway adjuncts when ventilating
35. Respiratory arrest is when breathing: A.increases in difficulty. B.becomes inadequate. C.completely stops. D.becomes labored.
C.completely stops.
27. A 16-year-old patient presents with labored breathing and increased respiratory rate, increased heart rate, and leaning forward with his hands on his knees. His skin is pink and his accurate pulse oximetry is 96. This patient is suffering from respiratory: A.failure. B.arrest. C.distress. D.hypoxia.
C.distress.
41. Humidification: A.performs the same function as suctioning. B.is impractical for long-term applications. C.makes the patient more comfortable. D.is required for short-term oxygenation.
C.makes the patient more comfortable.
36. Sealing a stoma is indicated: A.for elderly patients. B.for pediatric patients. C.when necessary to provide ventilations. D.for positioning the airway.
C.when necessary to provide ventilations.
43. Your patient is a 55-year-old man with a history of chronic bronchitis. You have been called to his home today because of an increase in his level of respiratory distress. The patient is on 2 liters per minute of oxygen by nasal cannula at home. Your assessment reveals difficulty speaking due to shortness of breath, leaning forward to breathe, a productive cough, and a respiratory rate of 32 per minute. Which of the following is true concerning the best course of action for this patient? A.You should not increase the patient's oxygen flow rate because of his likely dependence on a hypoxic drive to stimulate breathing. B.Because increased blood levels of carbon dioxide are the primary stimulus to breathe, you should encourage the patient to rebreathe his exhaled air from a paper bag. C.You should increase the patient's oxygen flow rate until his respiratory rate decreases and then resume oxygen administration at 2 liters per minute. D.You should increase the patient's oxygen flow rate to deliver adequate amounts of oxygen to his tissues. If his respiratory rate decreases, you can assist him with a bag-valve-mask device.
D. You should increase the patient's oxygen flow rate to deliver adequate amounts of oxygen to his tissues. If his respiratory rate decreases, you can assist him with a bag-valve-mask device.
14. What is the percentage of oxygen provided by connecting a high flow of oxygen to the oxygen inlet found on a pocket mask? A. 100 percent B. 21 percent C. 16 percent D. 50 percent
D. 50 percent
22. Which of these patients would require a tracheostomy mask for supplemental oxygen administration? A. A patient with upper airway inflammation B. A patient with chronic bronchitis C. A patient with quadriplegia D. A patient with a stoma
D. A patient with a stoma
12. What is a condition that can cause diffusion problems? A. myasthenia gravis B. anemia C. multiple sclerosis D. COPD
D. COPD
16. What is the importance of ensuring a proper seal when positioning a nonrebreather mask on a patient's face? A. It allows the patient to receive atmospheric air. B. It protects the airway. C. It controls the flow rate. D. It ensures high-concentration oxygen delivery.
D. It ensures high-concentration oxygen delivery.
28. Concerning the use of humidified oxygen, which of the following is TRUE? A.It should only be used when assisting ventilations with a bag-valve-mask device. B.The water in the reservoir should be treated with chlorine tablets to prevent the growth of bacteria. C.The water reservoir should be changed on a weekly basis. D.It is not of great benefit during short transports but can make the patient more comfortable on long transports.
D. It is not of great benefit during short transports but can make the patient more comfortable on long transports.
5. Why is inhalation described as an active process? A. It requires chest muscles to relax and the diaphragm to contract, creating a positive pressure. B. It requires chest muscles and the diaphragm to relax, creating a positive pressure. C. It requires chest muscles to contract and the diaphragm to relax, creating a negative pressure. D. It requires chest muscles and the diaphragm to contract, creating a negative pressure.
D. It requires chest muscles and the diaphragm to contract, creating a negative pressure.
1. A 21-year-old patient presents with labored breathing and audible wheezes, heart rate of 124, respiration 36, and significantly altered mentation. What treatment is NOT indicated for this patient? A. FROPVD B. Pocket face mask C. Bag-valve mask D. Nonrebreather mask
D. Nonrebreather mask
7. The constant used for an oxygen cylinder when determining oxygen flow duration is: A. determined by multiplying the cylinder's pressure by 20. B. the same for each cylinder, 300. C. the cylinder's pressure divided by 10. D. cylinder dependent.
D. cylinder dependent.
20. Venturi masks are designed to mix oxygen with: A. humidified air. B. nitrogen. C. carbon monoxide. D. inhaled air.
D. inhaled air.
45. You are transporting a 44-year-old female with chest pain and sudden respiratory distress. She is agitated, anxious, and refuses to have a nonrebreather mask applied. Which of the following is the best option? A.Do not make further attempts to administer oxygen, as it will only agitate the patient further. B.Consult with medical control about restraining the patient. C.Have her breathe into a paper bag to control her hyperventilation. D.Use a nasal cannula instead.
D.Use a nasal cannula instead.
