,Which of the following would have the greatest impact on this patient's ability to deliver oxygen
to the body tissue?
A. pH
B. PaO2
C. SaO2
D. Hb
*A. Pleural effusion* - ANSWER
A chest radiograph is taken in the lateral decubitus position in order to identify which of the
following pathologies?
A. Pleural effusion
B. Pulmonary embolus
C. Pneumothorax
D. Pneumonia
*B. check the transducer dome for air bubbles.* - ANSWER
The respiratory therapist notices a dampened waveform on a pulmonary arterial line. The
therapist's first action should be to
,A. attempt to draw blood from the line.
B. check the transducer dome for air bubbles.
C. flush the catheter with heparin solution.
D. check the position of the transducer.
*A. Asthma* - ANSWER
A bilateral wheeze would most likely indicate which of the following?
A. Asthma
B. Atelectasis
C. Foreign body aspiration
D. Epiglottitis
*A. digitalis* - ANSWER
A patient in the intensive care unit is suffering left heart failure. Which of the following drugs
will increase the strength of contraction and improve cardiac output?
A. digitalis
B. atropine
, C. isuprel
D. lidocaine
*D. 500 dynes/sec/cm-5* - ANSWER
A patient in the intensive care unit has the following hemodynamic measurements:
CVP: 16 mm Hg
Mean PAP: 30 mm Hg
PCWP: 5 mm Hg
MAP: 81 mm Hg
Cardiac output (QT): 4.0 L/min
Cardiac index (QI): 2.1 L/min/m2
What is the pulmonary vascular resistance?
A. 200 dynes/sec/cm-5
B. 300 dynes/sec/cm-5
C. 400 dynes/sec/cm-5
D. 500 dynes/sec/cm-5
*B. Shock* - ANSWER
The respiratory therapist is assessing a patient's vital signs and notes that the pulse feels weak
and thready. This would most likely be associated with which of the following conditions?
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