TNT FINAL EXAM QUESTIONS & ANSWERS
Tracheal secretions tend to dry and thicken in an intubated patient if:
1) neb is providing an AH of 28 mgH2O/L of air
2) if neb provides a water vapor pressure of 47mmHg
3) 50 mg of particulate H20/L of gas is delivered by neb
4) if the nebulized aerosol is not heated - Answer -1 & 4
If not cleaned properly, which device is most likely to contaminate the patient's airway
with bacteria? - Answer -Heated jet neb
What is the maximum flow rate used on a high-flow nasal cannula on an adult? -
Answer -60L/min
A patient with a tracheostomy tube has thick sputum. A heated neb should be attached
to the O2 delivery device to? - Answer -Ensure that the patient does not become
overhydrated.
A patient that was just extubated complains his throat feels swollen and is sore when he
swallows. What would the therapist recommend at this time? - Answer -Deliver cool
aerosol to the patient's airway
The therapist has received a verbal order from the physician to set up a high
percentage of oxygen on a patient. Which device has the capability of delivering the
highest oxygen percentage?
1) nasal cannula
2) non-rebreather
3) simple oxy
4) air entrainment mask - Answer -2
Which of the following oxygen delivery devices will meet the inspiratory flow demands of
a patient with inspiratory flow rate of 40 L/min?
1) 40% aerosol mask @ 8 L/min
2) 30% air entrainment @ 5 L/min
3) 40% air entrainment @ 12 L/min
4) 35% aerosol mask @ 6 L/min - Answer -2 & 3
Assuming a patient has an ideal breathing pattern, what is the appropriate oxygen
percentage delivered with a nasal cannula at 4 L/min? - Answer -36%
The therapist has been asked to deliver a low percentage of oxygen to a patient that is
breathing 30 x/min with an irregular breathing pattern. What device would be best to set
up on this patient? - Answer -air entrainment at 28%
,A non rebreather mask is able to deliver a maximum oxygen percentage in which
range? - Answer -60-80%
Aerosol particles in what range can reach the alveolar range? - Answer -1-3 microns
Low flow oxygen devices are adequate for use if the patient meets which of the
following criteria?
1) regular and consistent ventilatory pattern
2) respiratory rate less than 25/min
3) consistent tidal volume of 300-700mL
4) respiratory rate of more than 25/min - Answer -1 2 3
Which of the following is true regarding a BAN? breath actuated neb - Answer -It
provides aerosol delivery ONLY during inspiration reducing medication waste
A neb is set on 60% and is running at a liter flow of 8 L/min. The therapist observes that
toward the end of the patient's inspiration, no mist is exiting the exhalation ports of the
mask. What is true regarding this situation? - Answer -The patient is receiving LESS
than 60% oxygen
What is the max liter flow to be used to deliver oxygen to a patient on a nasal cannula? -
Answer -6 L/min
Which of the following is not a low flow device?
1) air entrainment mask
2) nasal cannula
3) partial rebreather
4) simple oxy mask - Answer -1
When delivering oxygen using a simple oxy mask, what is the minimum flow? - Answer
-5 L/min
Provided the patient has a normal respiratory rate and tidal volume, what is the oxygen
percentage available with a simple oxygen mask? - Answer -35-55%
When using an air entrainment mask with various jet sizes, the smaller the diameter of
the jet _______________ - Answer -the lower the FIO2
What is the air/O2 entrainment ratio for 30%? - Answer -8:1
Which of the following is NOT a hazard of aerosol therapy?
1) bronchospasm
2)airway obstruction
3) infection
4) bronchodilation - Answer -4
, You are asked to set up a moderate percentage of oxygen on a patient who is breathing
a consistent tidal volume of 450 mL at a respiratory rate fluctuating between 20-30.
What oxygen delivery device should the RT recommend? - Answer -air entrainment
mask
In order to minimize and increased airway resistance produced by high density aerosol
inhalation, the therapist should recommend what? - Answer -Administer a
bronchodilator with the aerosol
What is the highest oxygen percentage available with an air entrainment mask? -
Answer -50%
Which of the following statements are TRUE regarding the proper use of an MDI?
1) the patient should place the MDI in mouth, seal lips tightly
2) the MDI should be activated after patient inhales
3) the patient should inhale deep and fast
4) spacers are used to minimize aerosol loss - Answer -2 & 4
The oxygen percentage on a neb is decreased from 60-40%. After this oxygen change,
what is true? - Answer -A higher total flow will be delivered to the patient.
Which of the following is correct about oxygen dilution systems?
1) the FIO2 will decrease when internal diameter of the jet is increased
2) the FIO2 will increase when size of the entrainment port is increased
3) total flow will increase when the size of the entrainment port is increased - Answer -1
&3
Does the process of pasteurization decontaminate or sterilize equipment? - Answer -
Decontaminate
While preparing to analyze the oxygen percentage coming from a patient's aerosol
mask, you notice water in the large bore aerosol tubing. What effect would this have on
the operation of this aerosol setup? - Answer -increased FIO2??
After setting up a non rebreathing mask on a patient, you remove a one way valve from
one of the exhalation ports on the mask. This is done for what purpose? - Answer -To
allow air to enter the mask, should oxygen flow become interrupted.
Which of the following processes sterilizes equipment?
1) autoclave
2) pasteurization
3) ethylene oxide - Answer -1 & 3
Which of the following are believed to be an advantage of the nasal cannula as
compared with an air entrainment mask?
1) the nc needn't be removed while the patient is eating
Tracheal secretions tend to dry and thicken in an intubated patient if:
1) neb is providing an AH of 28 mgH2O/L of air
2) if neb provides a water vapor pressure of 47mmHg
3) 50 mg of particulate H20/L of gas is delivered by neb
4) if the nebulized aerosol is not heated - Answer -1 & 4
If not cleaned properly, which device is most likely to contaminate the patient's airway
with bacteria? - Answer -Heated jet neb
What is the maximum flow rate used on a high-flow nasal cannula on an adult? -
Answer -60L/min
A patient with a tracheostomy tube has thick sputum. A heated neb should be attached
to the O2 delivery device to? - Answer -Ensure that the patient does not become
overhydrated.
A patient that was just extubated complains his throat feels swollen and is sore when he
swallows. What would the therapist recommend at this time? - Answer -Deliver cool
aerosol to the patient's airway
The therapist has received a verbal order from the physician to set up a high
percentage of oxygen on a patient. Which device has the capability of delivering the
highest oxygen percentage?
1) nasal cannula
2) non-rebreather
3) simple oxy
4) air entrainment mask - Answer -2
Which of the following oxygen delivery devices will meet the inspiratory flow demands of
a patient with inspiratory flow rate of 40 L/min?
1) 40% aerosol mask @ 8 L/min
2) 30% air entrainment @ 5 L/min
3) 40% air entrainment @ 12 L/min
4) 35% aerosol mask @ 6 L/min - Answer -2 & 3
Assuming a patient has an ideal breathing pattern, what is the appropriate oxygen
percentage delivered with a nasal cannula at 4 L/min? - Answer -36%
The therapist has been asked to deliver a low percentage of oxygen to a patient that is
breathing 30 x/min with an irregular breathing pattern. What device would be best to set
up on this patient? - Answer -air entrainment at 28%
,A non rebreather mask is able to deliver a maximum oxygen percentage in which
range? - Answer -60-80%
Aerosol particles in what range can reach the alveolar range? - Answer -1-3 microns
Low flow oxygen devices are adequate for use if the patient meets which of the
following criteria?
1) regular and consistent ventilatory pattern
2) respiratory rate less than 25/min
3) consistent tidal volume of 300-700mL
4) respiratory rate of more than 25/min - Answer -1 2 3
Which of the following is true regarding a BAN? breath actuated neb - Answer -It
provides aerosol delivery ONLY during inspiration reducing medication waste
A neb is set on 60% and is running at a liter flow of 8 L/min. The therapist observes that
toward the end of the patient's inspiration, no mist is exiting the exhalation ports of the
mask. What is true regarding this situation? - Answer -The patient is receiving LESS
than 60% oxygen
What is the max liter flow to be used to deliver oxygen to a patient on a nasal cannula? -
Answer -6 L/min
Which of the following is not a low flow device?
1) air entrainment mask
2) nasal cannula
3) partial rebreather
4) simple oxy mask - Answer -1
When delivering oxygen using a simple oxy mask, what is the minimum flow? - Answer
-5 L/min
Provided the patient has a normal respiratory rate and tidal volume, what is the oxygen
percentage available with a simple oxygen mask? - Answer -35-55%
When using an air entrainment mask with various jet sizes, the smaller the diameter of
the jet _______________ - Answer -the lower the FIO2
What is the air/O2 entrainment ratio for 30%? - Answer -8:1
Which of the following is NOT a hazard of aerosol therapy?
1) bronchospasm
2)airway obstruction
3) infection
4) bronchodilation - Answer -4
, You are asked to set up a moderate percentage of oxygen on a patient who is breathing
a consistent tidal volume of 450 mL at a respiratory rate fluctuating between 20-30.
What oxygen delivery device should the RT recommend? - Answer -air entrainment
mask
In order to minimize and increased airway resistance produced by high density aerosol
inhalation, the therapist should recommend what? - Answer -Administer a
bronchodilator with the aerosol
What is the highest oxygen percentage available with an air entrainment mask? -
Answer -50%
Which of the following statements are TRUE regarding the proper use of an MDI?
1) the patient should place the MDI in mouth, seal lips tightly
2) the MDI should be activated after patient inhales
3) the patient should inhale deep and fast
4) spacers are used to minimize aerosol loss - Answer -2 & 4
The oxygen percentage on a neb is decreased from 60-40%. After this oxygen change,
what is true? - Answer -A higher total flow will be delivered to the patient.
Which of the following is correct about oxygen dilution systems?
1) the FIO2 will decrease when internal diameter of the jet is increased
2) the FIO2 will increase when size of the entrainment port is increased
3) total flow will increase when the size of the entrainment port is increased - Answer -1
&3
Does the process of pasteurization decontaminate or sterilize equipment? - Answer -
Decontaminate
While preparing to analyze the oxygen percentage coming from a patient's aerosol
mask, you notice water in the large bore aerosol tubing. What effect would this have on
the operation of this aerosol setup? - Answer -increased FIO2??
After setting up a non rebreathing mask on a patient, you remove a one way valve from
one of the exhalation ports on the mask. This is done for what purpose? - Answer -To
allow air to enter the mask, should oxygen flow become interrupted.
Which of the following processes sterilizes equipment?
1) autoclave
2) pasteurization
3) ethylene oxide - Answer -1 & 3
Which of the following are believed to be an advantage of the nasal cannula as
compared with an air entrainment mask?
1) the nc needn't be removed while the patient is eating
