In which method of parenteral drug administration is the drug injected within the upper layers of the skin?

Sound waves behave like light waves in that sound waves

a. travel in straight lines. b. may be focussed. c. may reflect or create echoes. d. all of the above

The process of converting a drug from its dose form, such as a tablet or capsule, into a form the body can use is called ________.

Fill in the blank(s) with the appropriate word(s).