The nurse is explaining antibiotics classification with a nursing student. It would be correct if the nurse included which statement?
O Narrow spectrum antibiotics are used to treat infections when the microorganism has not been identified.
O Broad spectrum antibiotics are selective and only treat one type of infection.
O Narrow spectrum antibiotics usually are effective against one type of organisms.
O Broad spectrum antibiotics are either effective against gram negative or gram positive microorganisms, not both.