NBRC Questions:Mechanical Ventilation Workbook CH1&3 Exam Graded
A+., Exams of Science education
After several moments of cardiac compressions with a patient suffering from
a complete cardiopulmonary collapse, the patient's cardiac rhythm is
consistent with asystole when compressions are momentarily halted. Which
of the following medications would be most helpful to the patient:
A. Quinidine
B. epinephrine
C. Romazicon
D. Lidocaine - ANSWERThe correct ANSWER is : B
Explanation :
Epinephrine is the drug of choice to treat asystole. The other medications are
not used in the situation.
,A patient has been on mechanical ventilator support for 5 days. The physician
would like to consider weaning the patient. The following clinical data is
available:
MIP -34 cmH2O
VT (spont) 450 mL
A-aDO2 220 mmHg
VD/VT 0.70
VC 1.6 L
RR 18/min
Based on this data, the therapist should recommend
A. obtain arterial blood gas analysis
B. avoid weaning at this time
C. perform pulmonary function testing
D. begin weaning with pressure support - ANSWERThe correct ANSWER is : B
Explanation :
All data suggests that the patient is ready to wean except for one piece of
data. That is the VD/VT ratio which is above 60%. It must be below 60% for
weaning to be considered
What is the minute ventilation (L/min) of a 150-lb (68-kg) male who has a
tidal volume 425 mL and a respiratory rate of 12?
A. 6.2
B. 3.3
,C. 5.1
D. 7.4 - ANSWERThe correct ANSWER is : C
Explanation :
To determine the minute ventilation of the patient, one should multiply the
tidal volume by the rate. In this case, tidal volume is expressed in milliliters.
Because minute ventilation should be expressed as L/min, tidal volume must
be translated to liters. Thus, .425 x 12 = 5.1 L
During bedside spirometry, the respiratory therapist asks the patient to take a
deep breath followed by a maximal, forceful exhalation. The therapist
observes the point on the graph that shows the fastest air movement. Which
of the following is being measured?
A. FEV1
B. peak flow
C. FEF 200-1200
D. forced vital capacity - ANSWERThe correct ANSWER is : B
Explanation :
The maneuver expressed here, which is a deep breath followed by a maximal
forceful exhalation, is called peak flow.
A 52-year-old patient with COPD has been undergoing daily T-piece trails in
an attempt to gradually wean from mechanical ventilation. For three
consecutive days, the patient is unable to tolerate the trials for more than
one hour and must be returned to full ventilatory support. The respiratory
therapist should recommend which of the following?
, A. discontinue all weaning trails for one week
B. pressure support mode
C. extubate the patient
D. provide Xanax during trails - ANSWERThe correct ANSWER is : B
Explanation :
COPD patients often have difficulty weaning or liberating from mechanical
ventilation. In this case, the use of pressure support would be most helpful as
it augments the patient's spontaneous tidal volume, thus decreasing the
work of breathing overall and facilitating longer spontaneous breathing trials
The following data were obtained while an adult patient was receiving VC AC
ventilation with an FIO2 0.60.
1000 1015 1030 1045
HR 90 92 106 110
BP (mm Hg) 135/88 128/86 119/80 101/75
SpO2 (%) 80 91 94 95
Static Comp. 20 42 61 50
PEEP (cm H2O 5 10 15 20
Which of the following PEEP levels should the respiratory therapist
recommend?
A. 10 cm H2O
B. 5 cm H2O
C. 20 cm H2O
A+., Exams of Science education
After several moments of cardiac compressions with a patient suffering from
a complete cardiopulmonary collapse, the patient's cardiac rhythm is
consistent with asystole when compressions are momentarily halted. Which
of the following medications would be most helpful to the patient:
A. Quinidine
B. epinephrine
C. Romazicon
D. Lidocaine - ANSWERThe correct ANSWER is : B
Explanation :
Epinephrine is the drug of choice to treat asystole. The other medications are
not used in the situation.
,A patient has been on mechanical ventilator support for 5 days. The physician
would like to consider weaning the patient. The following clinical data is
available:
MIP -34 cmH2O
VT (spont) 450 mL
A-aDO2 220 mmHg
VD/VT 0.70
VC 1.6 L
RR 18/min
Based on this data, the therapist should recommend
A. obtain arterial blood gas analysis
B. avoid weaning at this time
C. perform pulmonary function testing
D. begin weaning with pressure support - ANSWERThe correct ANSWER is : B
Explanation :
All data suggests that the patient is ready to wean except for one piece of
data. That is the VD/VT ratio which is above 60%. It must be below 60% for
weaning to be considered
What is the minute ventilation (L/min) of a 150-lb (68-kg) male who has a
tidal volume 425 mL and a respiratory rate of 12?
A. 6.2
B. 3.3
,C. 5.1
D. 7.4 - ANSWERThe correct ANSWER is : C
Explanation :
To determine the minute ventilation of the patient, one should multiply the
tidal volume by the rate. In this case, tidal volume is expressed in milliliters.
Because minute ventilation should be expressed as L/min, tidal volume must
be translated to liters. Thus, .425 x 12 = 5.1 L
During bedside spirometry, the respiratory therapist asks the patient to take a
deep breath followed by a maximal, forceful exhalation. The therapist
observes the point on the graph that shows the fastest air movement. Which
of the following is being measured?
A. FEV1
B. peak flow
C. FEF 200-1200
D. forced vital capacity - ANSWERThe correct ANSWER is : B
Explanation :
The maneuver expressed here, which is a deep breath followed by a maximal
forceful exhalation, is called peak flow.
A 52-year-old patient with COPD has been undergoing daily T-piece trails in
an attempt to gradually wean from mechanical ventilation. For three
consecutive days, the patient is unable to tolerate the trials for more than
one hour and must be returned to full ventilatory support. The respiratory
therapist should recommend which of the following?
, A. discontinue all weaning trails for one week
B. pressure support mode
C. extubate the patient
D. provide Xanax during trails - ANSWERThe correct ANSWER is : B
Explanation :
COPD patients often have difficulty weaning or liberating from mechanical
ventilation. In this case, the use of pressure support would be most helpful as
it augments the patient's spontaneous tidal volume, thus decreasing the
work of breathing overall and facilitating longer spontaneous breathing trials
The following data were obtained while an adult patient was receiving VC AC
ventilation with an FIO2 0.60.
1000 1015 1030 1045
HR 90 92 106 110
BP (mm Hg) 135/88 128/86 119/80 101/75
SpO2 (%) 80 91 94 95
Static Comp. 20 42 61 50
PEEP (cm H2O 5 10 15 20
Which of the following PEEP levels should the respiratory therapist
recommend?
A. 10 cm H2O
B. 5 cm H2O
C. 20 cm H2O
