COMPLETE SOLUTIONS (GRADED A+)
The frequency of a patient-ventilator check depends on the policy of the institution and generally
occurs every 1 to 4 hours around the clock. - Answer-True
In addition to this regularly timed check, ventilator checks are also performed - Answer--prior to
obtaining ab ABG
-prior to obtaining hemodynamic data or bedside pulmonary function data
-when a ventilator change has been made
Newer microprocesser ventilators, such as the Puritan Bennett 840 and the VIASYS, do not
require the calculation of tubing compliance because they automatically compensate for this
factor - Answer-True
The highest pressure observed during inspiration, which is recorded on the flow sheet and Paw
may also be termed - Answer-PIP
EEP is the lowest pressure measured in the expiratory phase. The most sommon EEP is the set
PEEP or CPAP level. EEP does not include auto-PEEP. - Answer-False
There are several ways to identify that a ventilator circuit leak is present. They include all of the
following EXCEPT: - Answer-the volume-time waveforms extend below the baseline
A reliable formula for the calculation of static compliance is - Answer-Cs=Vt/{Pplat-EEP})
Causes of decreasing patient Cs include all of the following EXCEPT - Answer-air trapping
In PV pressure must be increased when compliance decreases in order to maintain Vt delivery
Reduced Cs can result in decreased PaO2 and increased PaCO2, therefore it is important to
determine the cause and treat it. - Answer-True
During volume ventilation decreasing PIP with a constant delivered Vt may signal im - Answer-
True
Treatment for increased Raw must be directed at the specific cause of the increased Raw of these
include all of the following EXCEPT - Answer-inserting a chest tube
The Cs pressure-volume curve provides alveolar opening data for ventilating a patient with
decreasing compliance such as ARDS, it is appropriate to try and ventilate the patient - Answer-
somewhere between the lower and upper inflection points
Setting PEEP below the lower inflection point of the pressure-volume curve helps to inflated
alveoli from collapsing and re-expanding with each breath. - Answer-False