NBRC Test Questions and Correct
Answers
Which of the following therapeutic gas mixture should the respiratory therapist select to improve the
distribution of ventilation for a patient with high airway resitance?
A. helium/oxygen
B. nitric oxide/oxygen
C. nitrous oxide/oxygen
D. carbon dioxide/oxygen - Answer-A. helium/oxygen
The respiratory therapist assesses a patient receiving supplemental oxyby a transtracheal oxygen
catheter. The patient is diaphoretic, has a higher than a norman respiratory rate, and appears cyanotic.
Which of the following is the possible explanation?
A. There is excess humidity in transtracheal system
B. The flow going to the transtracheal system is too high
C. The transtracheal catheter is obstructed by a mucus plug
D. The transtracheal catheter is advanced too far into the airway - Answer-C. The transtracheal catheter
is obstructed by a mucus plug
, A patient who is receiving mechanaical ventilation using PEEP is switched to acontinuos flow CPAP
system for weaning. On initial evaluation, the manometer shows negative pressure during inspiration,
and the patient appears agitated and uncomfortable. Which of the following actions is most
appropriate?
A. Hyper oxygenate and suction the patient
B. Reinstitute mechanical ventilation
C. Increase CPAP by 2cm H2O
D. Increase System Flow - Answer-D. Increase System Flow
An adult patient with ARDS has been receiving mechanical ventilation for two weeks and is being
considered for weaning. Nitric Therapy is in use at a concentration of 10ppm. The patients' PVR has
change from 190 dynes to 150 dynes and the PaO2 is 90 torr with an FiO2 of 0.50. The NO concentration
should be change to?
A. 0 ppm
B. 5 ppm
C. 15 ppm
D. 20 ppm - Answer-B. 5 ppm
The information below was obtained from the pulmonary function report for a 40 year old who weighs
73kg (161 lb) and is 177cm (5 ft and 9 in) tall:
FVC 2.50L
FEV1 2.16L
FEV1/FVC 90%
DLCO 51% of predicted
Answers
Which of the following therapeutic gas mixture should the respiratory therapist select to improve the
distribution of ventilation for a patient with high airway resitance?
A. helium/oxygen
B. nitric oxide/oxygen
C. nitrous oxide/oxygen
D. carbon dioxide/oxygen - Answer-A. helium/oxygen
The respiratory therapist assesses a patient receiving supplemental oxyby a transtracheal oxygen
catheter. The patient is diaphoretic, has a higher than a norman respiratory rate, and appears cyanotic.
Which of the following is the possible explanation?
A. There is excess humidity in transtracheal system
B. The flow going to the transtracheal system is too high
C. The transtracheal catheter is obstructed by a mucus plug
D. The transtracheal catheter is advanced too far into the airway - Answer-C. The transtracheal catheter
is obstructed by a mucus plug
, A patient who is receiving mechanaical ventilation using PEEP is switched to acontinuos flow CPAP
system for weaning. On initial evaluation, the manometer shows negative pressure during inspiration,
and the patient appears agitated and uncomfortable. Which of the following actions is most
appropriate?
A. Hyper oxygenate and suction the patient
B. Reinstitute mechanical ventilation
C. Increase CPAP by 2cm H2O
D. Increase System Flow - Answer-D. Increase System Flow
An adult patient with ARDS has been receiving mechanical ventilation for two weeks and is being
considered for weaning. Nitric Therapy is in use at a concentration of 10ppm. The patients' PVR has
change from 190 dynes to 150 dynes and the PaO2 is 90 torr with an FiO2 of 0.50. The NO concentration
should be change to?
A. 0 ppm
B. 5 ppm
C. 15 ppm
D. 20 ppm - Answer-B. 5 ppm
The information below was obtained from the pulmonary function report for a 40 year old who weighs
73kg (161 lb) and is 177cm (5 ft and 9 in) tall:
FVC 2.50L
FEV1 2.16L
FEV1/FVC 90%
DLCO 51% of predicted
