Since ICG is less variable and more reproducible than other invasive methods, it has shown sufficient clinical usefulness to become a standard practice in noninvasive hemodynamic evaluations.

The left ventricle has the thickest walls because it:

A. pumps blood to the lungs to be reoxygenated. B. uses less oxygen than other chambers of the heart. C. pumps blood into the aorta and systemic circulation. D. receives blood directly from the systemic circulation.

Which of the following currents passing through the chest can cause ventricular fibrillation, dia-phragm dysfunction (due to severe, persistent contraction), and death?

a. 100 mA b. 100 A c. 100 µA d. 10 µA