Mechanical Ventilation Unit 1 Test Questions with Answers Graded A+
1. Mechanical Ventila- invasive procedure, provides full or partial support of ventilation
tion
2. Indications for Me- abnormal functioning of respiratory drive, ventilatory pump, airway and
chanical Ventilation lung parenchyma.
3. Acute ventilatory fail- apneic/bradycardia
ure (BOARDS) acute lung injury, ARDS
respiratory acidotic blood gas
4. impending ventilato- progressive acidotic patient with hypoventilation
ry failure (BOARDS) spontaneous RR >30 or <8
Vt < normal; 3-5ml/kg
5. severe hypoxemia PO2<40
(BOARDS) most likely intubating
6. prophylactic support surgery
(BOARDS) muscle fatigue
neuromuscular issues
reduce hypoxemia
cardiopulmonary stress
7. duration of mechani- 30 minutes to lifetime
cal ventilation
8. airway resistance mechanical factor attecting the airflow in the airways
ex.) ET tube
9. components of air- elastic forces; recoil properties of the lungs
way resistance nonelastic forces; diameter of airways changes
10. airway resistance is length, internal diameter & patency of airways
determined by
,Mechanical Ventilation Unit 1 Test Questions with Answers Graded A+
11. patency of airways secretions, bronchospasms or compression of lung parenchyma
may be reduced by
12. factors affecting air- airway obstruction; caused by changes inside, outside and in the walls of
way resistance airways
13. Poiseuille's Law if diameter is reduced by 1/2, resistance increases 16 times.
14. conditions that in- 1. Diseases (asthma & COPD)
crease airway resis- 2. mechanical (airways, foreign bodies, mainstem intubation, artificial air-
tance ways)
3. Infections (croup, epiglottitis, bronchiolitis)
15. ET to Trach tube will shorter tube decreases resistance & mechanical deadspace
16. normal airway resis- 0.6-2.4 cmH2O/L/sec
tance
17. airway resistance is intubated patients due to diameter of ET tube; chose largest/appropriate
higher in size for patient
18. ventilator circuit may collect condensation = increased resistance
19. pressure support spontaneously breathing patient; helps overcome resistance of ET tube
ventilation (PSV) is
used for
20. Raw equation (PIP-Pplat)/Flow (L/sec)
21. hypoventilation will increase CO2, pH decrease, ventilatory failure
cause
22. an increase in Raw, increase WOB & decrease flow
will
, Mechanical Ventilation Unit 1 Test Questions with Answers Graded A+
23. increased airway re- ventilation & oxygenation; causing respiratory muscle fatigue
sistance will slow
24. Ventilatory Failure minute alveolar ventilation cannot keep up with the CO2 production,
oxygenation failure follows
25. pressure-volume "football"
loop waveform increased bowing suggests increase in airflow resistance
26. PIP-Plat pressure gra- "scalar"
dient waveform larger gradient = resistance problem
27. Compliance distensibility of lungs parenchyma
(opposite = elastance)
28. in pressure mode... pressure is set, volume varies
29. in volume mode... volume is set, pressure varies
30. in volume-control, an a decreasing compliance
increasing plateau
pressure indicates
31. in pressure-control, a decreasing compliance
a decreasing volume
indicates
32. dynamic compliance measured during a mechanical breath with air movement (PIP)
definition
33. static compliance def- measured during an end-inspiratory pause (hold), no air movement (Plat)
inition
34. airway resistance & changes in lung/thoracic compliance
1. Mechanical Ventila- invasive procedure, provides full or partial support of ventilation
tion
2. Indications for Me- abnormal functioning of respiratory drive, ventilatory pump, airway and
chanical Ventilation lung parenchyma.
3. Acute ventilatory fail- apneic/bradycardia
ure (BOARDS) acute lung injury, ARDS
respiratory acidotic blood gas
4. impending ventilato- progressive acidotic patient with hypoventilation
ry failure (BOARDS) spontaneous RR >30 or <8
Vt < normal; 3-5ml/kg
5. severe hypoxemia PO2<40
(BOARDS) most likely intubating
6. prophylactic support surgery
(BOARDS) muscle fatigue
neuromuscular issues
reduce hypoxemia
cardiopulmonary stress
7. duration of mechani- 30 minutes to lifetime
cal ventilation
8. airway resistance mechanical factor attecting the airflow in the airways
ex.) ET tube
9. components of air- elastic forces; recoil properties of the lungs
way resistance nonelastic forces; diameter of airways changes
10. airway resistance is length, internal diameter & patency of airways
determined by
,Mechanical Ventilation Unit 1 Test Questions with Answers Graded A+
11. patency of airways secretions, bronchospasms or compression of lung parenchyma
may be reduced by
12. factors affecting air- airway obstruction; caused by changes inside, outside and in the walls of
way resistance airways
13. Poiseuille's Law if diameter is reduced by 1/2, resistance increases 16 times.
14. conditions that in- 1. Diseases (asthma & COPD)
crease airway resis- 2. mechanical (airways, foreign bodies, mainstem intubation, artificial air-
tance ways)
3. Infections (croup, epiglottitis, bronchiolitis)
15. ET to Trach tube will shorter tube decreases resistance & mechanical deadspace
16. normal airway resis- 0.6-2.4 cmH2O/L/sec
tance
17. airway resistance is intubated patients due to diameter of ET tube; chose largest/appropriate
higher in size for patient
18. ventilator circuit may collect condensation = increased resistance
19. pressure support spontaneously breathing patient; helps overcome resistance of ET tube
ventilation (PSV) is
used for
20. Raw equation (PIP-Pplat)/Flow (L/sec)
21. hypoventilation will increase CO2, pH decrease, ventilatory failure
cause
22. an increase in Raw, increase WOB & decrease flow
will
, Mechanical Ventilation Unit 1 Test Questions with Answers Graded A+
23. increased airway re- ventilation & oxygenation; causing respiratory muscle fatigue
sistance will slow
24. Ventilatory Failure minute alveolar ventilation cannot keep up with the CO2 production,
oxygenation failure follows
25. pressure-volume "football"
loop waveform increased bowing suggests increase in airflow resistance
26. PIP-Plat pressure gra- "scalar"
dient waveform larger gradient = resistance problem
27. Compliance distensibility of lungs parenchyma
(opposite = elastance)
28. in pressure mode... pressure is set, volume varies
29. in volume mode... volume is set, pressure varies
30. in volume-control, an a decreasing compliance
increasing plateau
pressure indicates
31. in pressure-control, a decreasing compliance
a decreasing volume
indicates
32. dynamic compliance measured during a mechanical breath with air movement (PIP)
definition
33. static compliance def- measured during an end-inspiratory pause (hold), no air movement (Plat)
inition
34. airway resistance & changes in lung/thoracic compliance
