What is the cardiac output when oxygen (O2) consumption = 200 mL/min, arterial O2 content = 21 vol, and mixed venous O2 content = 15 vol?
a. 3.3 mL/min c. 5.3 mL/min
b. 4.3 mL/min d. 6.3 mL/min
Q. 2 What is the cardiac output, by using the direct Fick method, for a patient with the following he-modynamic values? PaO2 = 80 mm Hg SaO2 = 90 Hb = 14 gm PO2 = 35 mm Hg SO2 = 65 PB = 760 mm Hg O2 = 210 mL/min
a. 3.5 mL/min c. 5.83 mL/min
b. 4.36 mL/min d. 6.15 mL/min
Q. 3 Rupture of the pulmonary artery catheter balloon can cause which of the following?
a. Atrial flutter c. Pneumothorax
b. Air embolism d. Pulmonary infarc-tion
Q. 4 Which of the following lumens will not appear on a cross-sectional view of a triple-lumen pul-monary artery catheter at 20 cm back from the tip?
a. Distal c. Proximal
b. Inflation d. Thermistor
Q. 5 Other than air, the gas that is commonly used to inflate the balloon on a pulmonary artery cathe-ter is:
a. helium. c. oxygen.
b. nitrogen. d. carbon dioxide.
Q. 6 The right heart catheterization waveform in the figure that represents pressure in the right ventri-cle is which of the following?
a. A c. C
b. B d. D
Q. 7 Pulmonary artery occlusion pressure can be used to estimate:
a. left-atrial preload.
b. left-atrial afterload.
c. left-ventricular end-diastolic pressure.
d. right-ventricular end-diastolic pressure.
Q. 8 A pulmonary artery catheter introduced via the antecubital route is currently at the 50-cm mark and is showing the tracing below. Is there a problem with this catheter?
a. Yes; the balloon has ruptured.
b. No; it's in the pulmonary artery.
c. Yes; it's knotted in the right ventricle.
d. No; it's wedged in a pulmonary capillary.
Quick Reply
