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- 1. Multiple Choice
what percentage of the air we breathe is made up of oxygen?
78%
12%
16%
21%
- 2. Multiple Choice
what concentration of inspired oxygen is provided by a nasal cannula when the flowermeter is set at 1to 6 L/min?
10% to 18%
24% to 44%
52% to 84%
89% to 98%
- 3. Multiple Choice
which of the following statements regarding respiratory rate is true?
the respiratory rate is about equal to the person's heart rate
the normal rate is 12 to 20 breaths/min
the rate is faster when the person is sleeping
the rate is the same as in infants and children
- 4. Multiple Choice
which of the following is a sign of inadequate breathing in an adult?
respiratory rate of 18 breaths/min
diminished breath sounds
equal chest expansion
warm, pink skin
- 5. Multiple Choice
the brain stem normally triggers breathing by increasing respirations when:
carbon dioxide levels increase
oxygen levels increase
carbon dioxide levels decrease
nitrogen levels decrease
- 6. Multiple Choice
which of the following is a contraindication for placement of an oropharyngeal airway?
intact gag reflex
severe head injury
unconsciousness
fractured nasal bone
- 7. Multiple Choice
the proper technique for sizing an oropharyngeal airway before insertion is to measure the device from:
the tip of the nose to the earlobe
the bridge of the nose to the tip of the chin
the corner of the mouth to the earlobe
the center of the jaw to the earlobe
- 8. Multiple Choice
what is a common problem when a signal EMT uses a bag-valve mask?
over-inflation of the lungs
delivering an inappropriate rate of ventilations
environmental conditions
maintaining an airtight mask seal
- 9. Multiple Choice
when ventilating a patient with a bag-valve mask, you should:
look for inflation of the cheeks
squeeze the bag hard and fast
look for rise and fall of the chest
only perform this with an advanced airway
- 10. Multiple Choice
suctioning the oral cavity of an adult should be accomplished within:
5 seconds
10 seconds
15 seconds
20 seconds
- 11. Multiple Choice
which of the following is the most common method of assisting ventilations in the field?
mouth-to-mouth with one way valve
continuous positive airway pressure (CPAP)
flow-restricted, oxygen-powered ventilation device
bag-valve mask with oxygen reservoir and supplemental oxygen
- 12. Multiple Choice
when a person goes _______________minutes without oxygen, brain damage is very likely
0 to 4
4 to 6
6 to 10
more than 10
- 13. Multiple Choice
what is the most common airway obstruction in the unconscious patient?
food
tonsils
blood
tongue
- 14. Multiple Choice
what are agonal gasps?
occasional gasping breaths but adequate to maintain life
occasional gasping breaths but unable to maintain life
painful respirations due to broken ribs
another name for ataxic respirations
- 15. Multiple Choice
which of the following could result in an inaccurate pulse oximetry reading?
warm extremities
carbon monoxide poisoning
vasodilation
hyperthermia
- 16. Multiple Choice
nasal airways keep the tongue from blocking the upper airway and facilitate suctioning of the oropharynx
true
false
- 17. Multiple Choice
nasal cannulas can deliver a maximum of 44% oxygen at 6L/min
true
false
- 18. Multiple Choice
oral airways should be measured from the tip of the nose to the earlobe
true
false
- 19. Multiple Choice
compressed gas cylinders pose no unusual risk
true
false
- 20. Multiple Choice
the pin-indexing system is used to allow any gas regulator to be connected to an oxygen cylinder
true
false
- 21. Multiple Choice
you respond to a construction site to find a worker lying supine in the dirt. he was struck by a heavy construction vehicle and flew more than 15 feet (4.6 m) before landing in his current position. there is discoloration and distention of his abdomen about the RUQ. he is unconscious and his respirations are 10 breaths/min and shallow, with noisy gurgling sounds.
what airway technique will you use to open his airway?
head tilt- neck lift maneuver
jaw thrust
head tilt- chin lift maneuver
cross-finger technique
- 22. Multiple Choice
you respond to a construction site to find a worker lying supine in the dirt. he was struck by a heavy construction vehicle and flew more than 15 feet (4.6 m) before landing in his current position. there is discoloration and distention of his abdomen about the RUQ. he is unconscious and his respirations are 10 breaths/min and shallow, with noisy gurgling sounds.
after opening the airway, your next priority is to:
provide oxygen at 6L/min via non breathing mask
provide oxygen at 15L/min via nasal cannula
assist respirations
suction the airway
- 23. Multiple Choice
you respond to a construction site to find a worker lying supine in the dirt. he was struck by a heavy construction vehicle and flew more than 15 feet (4.6 m) before landing in his current position. there is discoloration and distention of his abdomen about the RUQ. he is unconscious and his respirations are 10 breaths/min and shallow, with noisy gurgling sounds.
what method will you use to keep his airway open?
nasal cannula
jaw thrust
oropharyngeal airway
head tilt- chin lift maneuver
- 24. Multiple Choice
you respond to a construction site to find a worker lying supine in the dirt. he was struck by a heavy construction vehicle and flew more than 15 feet (4.6 m) before landing in his current position. there is discoloration and distention of his abdomen about the RUQ. he is unconscious and his respirations are 10 breaths/min and shallow, with noisy gurgling sounds.
while assisting with respirations, you note gastric distention. in order to prevent or alleviate the distention, you should do all of the following EXCEPT:
ensure that the patient's airway is appropriately positioned
ventilate the patient at the appropriate rate
ventilate the patient at the appropriate volume
ventilate the patient at a faster rate
- 25. Multiple Choice
you respond to a construction site to find a worker lying supine in the dirt. he was struck by a heavy construction vehicle and flew more than 15 feet (4.6 m) before landing in his current position. there is discoloration and distention of his abdomen about the RUQ. he is unconscious and his respirations are 10 breaths/min and shallow, with noisy gurgling sounds.
the patient is now apneic. what is the correct ventilation rate for assisting this adult patient?
one breath every 5 to 6 seconds
one breath every 3 to 5 seconds
one breath every 10 to 12 seconds
there is no need to assist with ventilations for this patient
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