CRT NBRC EXAM 2024-2025 ACTUAL EXAM 50
QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES
(VERIFIED ANSWERS) |AGRADE
the RT notices excess condensation developing in the corrugated tubing of a heated large volume
nebulizer set at FiO2 28%. Puffs of aerosol are noted in the mask. which of the following is likely true? -
CORRECT ANSWER-FIO2 is increased
an adult female is receiving mechanical ventilation on the following settings:
Mode - SIMV
Freq. - 12bpm
Vt - 500ml
FiO2 - .60
PEEP - 18cmH2O
Lab results show: pH
- 7.35
PaCO2 - 45torr
PaO2 - 52torr
HCO3 - 23mEq/L
SaO2 - 88%
CVP - 5mmHg
PAP - 26mmHg
PCWP - 17 mmHg
C.O. - 3.1 L/min the RT should: - CORRECT ANSWERincrease
FiO2 to .80
,A RT is administering IPPB therapy with a mask. before the patient has completely exhaled, the machine
begins the inspiratory phase. The therapist should adjust: - CORRECT ANSWER-sensitivity
The RT responds to a high pressure alarm on a patient receiving volume control ventilation through a 7.0
mm or endotracheal tube. The patient appears agitated, is mildly thrashing about the bed, & is not
responsive to verbal direction. The therapist should: - CORRECT ANSWER-perform endotracheal
suctioning
results of a pre & post bronchodilator spirometry are as follows:
Pre. Post
FVC 81 83
FEV1 61 76
FEF 25-75 54 71
FEF 200-1200 79 80
which of the following best represents a correct interpretation of this data? - CORRECT
ANSWERobstructive lung disease
a patient is receiving volume controlled mechanical ventilation. which of the following is needed to
calculate the physiological deadspace? - CORRECT ANSWER-capnograph (CO2)
The diastolic portion of the pulmonary artery pressure differs from the mean pulmonary capillary wedge
pressure by approximately how much? - CORRECT ANSWER-0-4torr
A patient with COPD is receiving volume controlled mechanical ventilation with an I:E ratio of 1:2.
Autopeep is developing. The RT should: - CORRECT ANSWER-increase the flow rate during a
routine ventilator check the RT notices the following data on the ventilator flow sheet
Time 1300 - 1500 - 1700 peak pressure 25 - 33 - 39 plateau pressure 12 - 12 - 12 - CORRECT ANSWER-pt
requires suctioning
, a patient is receiving a supplemental oxygen via venturi mask set at 28%. The flow is set at 6 L/min. The
total flow to the patient is? - CORRECT ANSWER-66 L/min
A patient with a 90 pack of history of smoking is thrashing about while receiving volume controlled
mechanical ventilation. which of the following would be most appropriate? - CORRECT
ANSWERplacement of nicotine dermal patch
a 54-year-old post-coronary artery bypass graft patient is being monitored with a balloon tipped, flow
directed, pulmonary artery catheter. The following measurements are current:
CVP - 11cmH2O
PAP - 18mmHg
PCWP - 22 mmHg
CO 3.1 L/min
The RT should recommend which of the following? - CORRECT ANSWER-Crystodignin (Digitalis)
a 64 kg (141 lb) male is receiving mechanical ventilation on the following settings:
Mode - A/C
Freq. - 14bpm
Vt - 450ml
FiO2 - .60
PEEP - 12cmH2O
Lab results show: pH
- 7.39
PaCO2 - 41torr
PaO2 - 55torr
HCO3 - 23mEq/L
SaO2 - 88%
C.O. - 5.2 L/min the RT should: - CORRECT ANSWER-increase
peep to 15cmh2O
QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES
(VERIFIED ANSWERS) |AGRADE
the RT notices excess condensation developing in the corrugated tubing of a heated large volume
nebulizer set at FiO2 28%. Puffs of aerosol are noted in the mask. which of the following is likely true? -
CORRECT ANSWER-FIO2 is increased
an adult female is receiving mechanical ventilation on the following settings:
Mode - SIMV
Freq. - 12bpm
Vt - 500ml
FiO2 - .60
PEEP - 18cmH2O
Lab results show: pH
- 7.35
PaCO2 - 45torr
PaO2 - 52torr
HCO3 - 23mEq/L
SaO2 - 88%
CVP - 5mmHg
PAP - 26mmHg
PCWP - 17 mmHg
C.O. - 3.1 L/min the RT should: - CORRECT ANSWERincrease
FiO2 to .80
,A RT is administering IPPB therapy with a mask. before the patient has completely exhaled, the machine
begins the inspiratory phase. The therapist should adjust: - CORRECT ANSWER-sensitivity
The RT responds to a high pressure alarm on a patient receiving volume control ventilation through a 7.0
mm or endotracheal tube. The patient appears agitated, is mildly thrashing about the bed, & is not
responsive to verbal direction. The therapist should: - CORRECT ANSWER-perform endotracheal
suctioning
results of a pre & post bronchodilator spirometry are as follows:
Pre. Post
FVC 81 83
FEV1 61 76
FEF 25-75 54 71
FEF 200-1200 79 80
which of the following best represents a correct interpretation of this data? - CORRECT
ANSWERobstructive lung disease
a patient is receiving volume controlled mechanical ventilation. which of the following is needed to
calculate the physiological deadspace? - CORRECT ANSWER-capnograph (CO2)
The diastolic portion of the pulmonary artery pressure differs from the mean pulmonary capillary wedge
pressure by approximately how much? - CORRECT ANSWER-0-4torr
A patient with COPD is receiving volume controlled mechanical ventilation with an I:E ratio of 1:2.
Autopeep is developing. The RT should: - CORRECT ANSWER-increase the flow rate during a
routine ventilator check the RT notices the following data on the ventilator flow sheet
Time 1300 - 1500 - 1700 peak pressure 25 - 33 - 39 plateau pressure 12 - 12 - 12 - CORRECT ANSWER-pt
requires suctioning
, a patient is receiving a supplemental oxygen via venturi mask set at 28%. The flow is set at 6 L/min. The
total flow to the patient is? - CORRECT ANSWER-66 L/min
A patient with a 90 pack of history of smoking is thrashing about while receiving volume controlled
mechanical ventilation. which of the following would be most appropriate? - CORRECT
ANSWERplacement of nicotine dermal patch
a 54-year-old post-coronary artery bypass graft patient is being monitored with a balloon tipped, flow
directed, pulmonary artery catheter. The following measurements are current:
CVP - 11cmH2O
PAP - 18mmHg
PCWP - 22 mmHg
CO 3.1 L/min
The RT should recommend which of the following? - CORRECT ANSWER-Crystodignin (Digitalis)
a 64 kg (141 lb) male is receiving mechanical ventilation on the following settings:
Mode - A/C
Freq. - 14bpm
Vt - 450ml
FiO2 - .60
PEEP - 12cmH2O
Lab results show: pH
- 7.39
PaCO2 - 41torr
PaO2 - 55torr
HCO3 - 23mEq/L
SaO2 - 88%
C.O. - 5.2 L/min the RT should: - CORRECT ANSWER-increase
peep to 15cmh2O
