Multiple Choice Questions (MCQ)

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Category: Surgery--->Physiologic Monitoring of the Surgical Patient
Page: 3

Question 11# Print Question

Using pulse pressure variability (PPV) to determine pre-load responsiveness:

A. Is reliable for a patient in rate-controlled atrial fibrillation, but not for a patient in atrial flutter
B. Is a better predictor of preload responsiveness than CVP
C. Defines PPV as the difference between the maximal pulse pressure and the minimal pulse pressure observed at different points in the respiratory cycle
D. Is unreliable in mechanically ventilated patients due to decreased venous return during inspiration

Question 12# Print Question

Strategies for increasing oxygen delivery in mechanically ventilated, critically ill patients include:

A. Increasing Sao2 by increasing inspiratory time
B. Increasing Sao2 by increasing respiratory rate
C. Increasing SVO2 by switching to a reversed inspiratory to expiratory ratio ventilation
D. Increasing SVO2 by increasing positive end-expiratory pressure (PEEP)

Question 13# Print Question

All of the following are true regarding airway pressures EXCEPT:

A. Bronchospasm will cause increased peak pressure with a relatively normal plateau pressure
B. Pneumothorax will cause increased peak and plateau pressures
C. Lobar atelectasis will cause increased plateau pressures with relatively normal peak press
D. Plateau pressure is independent of airway resistance

Question 14# Print Question

Causes of an increase in end-tidal-CO2 include:

A. Massive pulmonary embolism
B. Reduced cardiac output
C. Sustained hyperventilation
D. Reduced minute ventilation

Question 15# Print Question

Which of the following is NOT an indication for intracranial pressure (ICP) monitorin

A. Glasgow Coma Scale (GCS) less than or equal to 8 with an abnormal computed tomography (CT) scan
B. Severe traumatic brain injury (TBI) in a patient older than 40 years and systolic blood pressure less than 90 mm Hg
C. Intracranial hemorrhage without intraventricular blood
D. Fulminant hepatic failure with coma and cerebral edema on CT

Category: Surgery--->Physiologic Monitoring of the Surgical Patient
Page: 3 of 4