Strands of wire used to attach arch bars to the upper and lower jaw should be prestretched and cut to which length?

IV bags are to be kept:

a. at the level of the heart. b. above the level of the heart. c. below the level of the heart. d. none of the above.

Which of the following examples of salvage equipment must have a horizontal ledge from which to hang salvage covers?

A. S-hook B. J-hook C. Pikepole D. Wooden sprinkler wedge