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The respiratory therapist has received an order for
postural drainage and percussion for a 34-year-old patient
whose chest x-ray film indicates atelectasis of the
posterior basal segment of the right lower lobe. The
patient should be placed in which of the following positions
to help drain this segment? - ANSWER-Lying on the left
side with head of bed down
,While performing postural drainage and percussion, the
respiratory therapist palpates subcutaneous emphysema
in the patient. The therapist should postpone the therapy
and recommend which of the following? - ANSWER-
Obtain chest radiograph
While assessing a patient with chest trauma in the ICU,
the respiratory therapist observes that the patient's chest
tube, which is connected to an underwater seal drainage
system, is outside the chest wall. Which of the following
statements are correct about this situation? - ANSWER-A
complete pneumothorax is possible
A V/Q scan is conducted on a patient in whom pulmonary
embolism is suspected. The scan shows normal ventilation
,and the absence of perfusion in the left upper lobe. The
respiratory therapist should estimate the V/Q ratio in this
area to be which of the following? - ANSWER-1.0
The following data have been collected on a patient
receiving continuous mechanical ventilation:
1:00PM 3:00PM
Delivered VT 600 mL 600 mL
Peak airway 44 cm H2O 52 cm H2O
pressure
Static airway 25 cm H2O 33 cmH2O
pressure
Inspiratory flow 40 L/min 40 L/min
PEEP 5 cm H2O 5 cm H2O
, Which of the following is the best interpretation of these
data? - ANSWER-The peak airway pressure increased as
a result of decreased lung compliance
A 58-year-old patient with emphysema enters the
emergency department on a 2-l/min nasal cannula. Blood
for ABG analysis is drawn, and after the resutls are
evaluated, the O2 flow is increased to 5 l/min. Below are
ABG results for both flow rates:
2 L/min 5 L/min
pH 7.34 7.28
PaCO2 62 torr 77 torr
PaO2 44 torr 52 torr
HCO3 35 mEq/L 35 mEq/L