Patient arrived at the ED complaining of chest pain. As part of the diagnostic workup, he underwent a transesophageal echocardiogram

The function of the vaporizer of a liquid bulk oxygen system is to:

a. act as a pressure release. b. reduce the pressure to 50 psig. c. convert liquid oxygen to gaseous oxygen. d. allow heat to be released into the envi-ronment.

Such cancer-causing agents as radiation, chemicals, or viruses are termed:

A. hyperplasic B. suppressing C. alkylating D. carcinogenic