Page 572 - Clinical Application of Mechanical Ventilation

538 Chapter 16

9. Rapid shallow breathing causes a(n):
A. increase of Q /Q . C. increase of V /V .
T
T
D
S
B. decrease of Q /Q . D. decrease of V /V .
T
S
T
D
10. A patient has an average spontaneous frequency of 20/min and tidal volume of 400 mL. What is the
calculated RSBI (f/V )?
T
A. 50 breaths/min/L
B. 80 breaths/min/L
C. 200 breaths/min/L
D. 800 breaths/min/L
11. For a successful weaning outcome, a spontaneous breathing patient should have a calculated RSBI
(f/V ) of:
T
A. .100 breaths/min/L.
B. ,100 breaths/min/L.
C. between 100 and 200 breaths/min/L.
D. between 200 and 400 breaths/min/L.

12. Partial ventilator support via _______ is done by reducing the ventilator frequency gradually.
A. synchronized intermittent mandatory ventilation (SIMV)
B. T-tube
C. spontaneous breathing trial
D. pressure support ventilation (PSV)

13. According to the weaning protocol for mechanical ventilation, the time limit for a spontaneous breathing
trial should be up to _______ unless terminated earlier.
A. 5 min C. 2 hours
B. 30 min D. 4 hours

14. All of the following trends may be used as indicators of weaning failure with the exception of :

A. increasing V .
T
B. increasing PaCO .
2
C. decreasing PaO .
2
D. decreasing static compliance.
15. Terminal weaning is defined as _______ of mechanical ventilation that results in the _______ of
a patient.
A. withholding, vegetative state
B. withholding, death
C. withdrawal, vegetative state
D. withdrawal, death

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