A Student Nurse Asks a Friend in the Program, "What

A student nurse asks a friend in the program, "What does it mean when a medication is buffered?" Which response by the friend is best?

A) "Buffered medications have been dissolved in oils or fats."
B) "That means the medication has added antacids to reduce stomach upset."
C) "Buffering extends the metabolism of the drug so it stays in the system longer."
D) "You cannot crush a tablet if it is buffered because it has a special coating."