{"id":127111,"date":"2023-11-26T09:23:01","date_gmt":"2023-11-26T09:23:01","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=127111"},"modified":"2023-11-26T09:23:03","modified_gmt":"2023-11-26T09:23:03","slug":"nbrc-tmc-crt-rrt-exam-2023-latest-questions-and-correct-answers-agrade","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2023\/11\/26\/nbrc-tmc-crt-rrt-exam-2023-latest-questions-and-correct-answers-agrade\/","title":{"rendered":"NBRC TMC\/CRT\/RRT EXAM 2023 LATEST QUESTIONS AND CORRECT ANSWERS |AGRADE"},"content":{"rendered":"\n

NBRC TMC\/CRT\/RRT EXAM 2023 LATEST QUESTIONS AND CORRECT ANSWERS |AGRADE<\/p>\n\n\n\n

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NBRC TMC\/CRT\/RRT EXAM
A patient is receiving O2 from an E cylinder at 4 L\/min through a nasal cannula. The cylinder pressure
is 1900 psig. How long will the cylinder run until it is empty?
A. 47 min
B. 1.7 h
C. 2.2 h
D. 3.6 h
E cylinder = 0.28
1900×0.28\/4 = 133\/60 = 2.21
Answer: C. 2 hours, 21 minutes
After the Respiratory Therapist sets up a nonrebreathing mask on a patient at a flow rate of 10 L\/min,
the reservoir bag collapses before the patient finishes inspiring. The RT should do which of the
following?
A. Change to a simple mask at a flow rate of 10 L\/min
B. Remove the one-way valve from the exhalation port.
C. Place the patient on continuous positive airway pressure (CPAP)
D. Increase the flow rate to 15 L\/min
D. Increase the flow rate to 15 L\/min
A patient with carbon monoxide (CO) poisoning can best be treated with which of the following
therapies?
A. Nasal Cannula at 6 L\/min
B. Simple O2 mask at 10 L\/min
C. CPAP and 60% O2
D. Nonrebreathing mask
D. Nonrebreathing mask<\/p>\n\n\n\n

The following blood gas levels have been obtained from a patient using a 60% aerosol mask.
pH: 7.47
PaCO2: 31 mmHg
PaO2: 58 mmHg
What should the RT recommend at this time?
A. Place the patient on CPAP
B. Increase the O2 to 70%
C. Intubate and place the patient on mechanical ventilation
D. Change to a nonrebreathing mask
A. Place the patient on CPAP
Given the following data, what is the patient’s total arterial O2 content?
pH: 7.41
PaCO2: 37 mmHg
PaO2: 88 mmHg
HCO3: 26 mEq\/L
SaO2: 95%
Hb: 14 g\/dL
A. 12 mL\/dL
B. 14 mL\/dL
C. 16 mL\/dL
D. 18 mL\/dL
(Hb x 1.36 x SaO2) + (0.003 x PaO2)
(14 x 1.36 x 0.95) + (0.003 x 88)
18.088 + 0.264
= 18.352
Answer: D. 18 mL\/dL<\/p>\n\n\n\n

The respiratory therapist receives an order to set up a moderate level of O2 on a patient who arrives
in the ED breathing at a rate of 35 breaths\/min. Which of the following O2 delivery devices is most
appropriate to use in this situation?
A. Simple O2 mask at 10 L\/min
B. Nasal cannula at 4 L\/min
C. NRB Mask at 15 L\/min
D. Air-entrainment mask at 40% O2
D. Air-entrainment mask at 40% O2
A severe COPD patient arrives in the emergency department on a 2 L\/min nasal cannula. Arterial
blood gas results follow:
pH: 7.32
PaCO2: 67 mmHg
PaO2: 62 mmHg
HCO3: 38 mEq\/L
Which of the following is the most appropriate recommendation?
A. Increase the liter flow to 4 L\/min
B. Maintain the current O2 level
C. Institute noninvasive positive pressure ventilation (NPPV)
D. Place on a NRB mask at 12 L\/min
B. Maintain the current O2 level
The physician has ordered O2 to be set up on a patient who has a spontaneous tidal volume of 500 mL
and an inspiratory time of 1 second. Which of the following O2 delivery devices will deliver a flow that
meets or exceeds this patient’s inspiratory flow?
A. 35% air-entrainment mask at 6 L\/min
B. 60% aerosol mask at 12 L\/min
C. NRB mask at 15 L\/min
D. Simple O2 mask at 10 L\/min
500 mL = 0.5 L
0.5\/1 = 0.5 L\/s (change L\/s to ?\/min by multiplying by 60<\/p>\n\n\n\n

0.5 L x 60= 30 L\/min
Select the device that delivers a flow of at least 30L\/min
A. 35% air-entrainment mask at 6 L\/min
A patient breathing 50% oxygen has a PaO2 of 248 torr. Which of the following should the RT
recommend?
A. Discontinue O2 therapy
B. Decrease the oxygen to 30%
C. Titrate oxygen to maintain an SpO2 > 93%
D. Repeat the blood gases because the PaO2 is not possible on this FiO2.
C. Titrate oxygen to maintain an SpO2 > 93%
Explanation: A PaO2 of 250 torr is normal on 50% O2. Remember, to determine the normal PaO2 on
any given O2%, multiply the O2% by 5. This is an approximation. If titrate was not a choice, then you
would discontinue the oxygen.
A patient is receiving 30% oxygen via an air-entrainment mask at a flow of 5 L\/min. The total flow
delivered by this device is which of the following?
A. 36 L\/min
B. 45 L\/min
C. 54 L\/min
D. 60 L\/min
(Use 21 with O2 % less than 40%) (100- 30%)\/ (30%-<\/em>21) = 70\/9 = 8\/1 or 8:1 ratio
8+1= 9
9×5 = 45 L\/min
B. 45 L\/min
Secretions tend to become thicker if the inspired air has which of the following characteristics?
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