Abbreviations: Write the correct abbreviation for the career title

Verbal skills are well maintained until age ________, after which some healthy elderly persons gradually develop reductions in vocabulary, tendencies to make semantic errors, and abnormal pronunciation

a. 60 b. 70 c. 80 d. 90

You are preparing a mixture of dopamine for a patient suffering from heart failure. You place 400 mg in 500 mL of dextrose 5% and water. What is the concentration of the solution?

a. 800 micrograms/mL b. 800 milligrams/mL c. 80 micrograms/mL d. 8 milligrams/mL