Which of the following best describes the number of times a document should be reviewed to be proofread adequately?

Unlisted codes are used when:

a. appropriate. b. uncertain. c. no other code fits the criteria. d. the code is outdated.

What is the maximum length of an inspiratory hold on the Oxylog 3000 plus?

a. 10 seconds c. 15 seconds b. 12 seconds d. 18 seconds