Answer to Question 1
B
Studies regarding acupuncture for treatment for cancer pain have been few and not well designed, so there is insufficient evidence to support its use. However, there have not been definitive studies showing that it does not work. TENS has not been well-studied, so findings about its use are inconclusive.
Answer to Question 2
C
Isoproterenol is used for shock because of its actions on beta1 receptors in the heart. It has a posi-tive inotropic effect, which improves cardiac output and thus increases tissue perfusion. Isopro-terenol does not affect alpha1 receptors. Although it activates beta2 receptors to cause bronchodi-lation, this is not indicated for the treatment of shock.