What is the term for a spinal anesthetic solution that has the same specific gravity as cerebrospinal fluid?

Your elderly patient has been struck by a car and you suspect serious internal bleeding. Her pulse rate is steady at 80, and her respirations are shallow. She tells you that she takes beta blockers for hypertension. What should you suspect?

A) There is a decreased response of the sympathetic nervous system. B) You are likely mistaken about the internal bleeding. C) She has a strong and healthy heart which is compensating. D) She has fractures of several bones, including femur and hip.

Which of the following statements regarding ductility is MOST accurate?

A) The difference in ductility between steel and cast iron is the result of a higher carbon content in steel. B) Steel can only be rolled at extremely high temperatures. C) Hot-rolled steel is used for members with thin cross-sections. D) Steels with higher yield points have less ductility.