When a child receives the attenuated measles vaccine, what historical science figure(s) contributed to its success?

The pH range is from:

A) 0—14. B) 1—12. C) 1—14. D) 0—12.

Preparing the environment prior to patient arrival includes:

a. gathering pillows, sheets, and towels. b. removing equipment that is not needed. c. placing required equipment within reach. d. all of the above.