The third generation cephalosporins differ from the
first generation cephalosporins in that they are:
A. More active against gram positive cocci
B. More active against gram negative enterobacteriaceae
C. Nonimmunogenic
D. Not excreted by tubular secretion
first generation cephalosporins in that they are:
A. More active against gram positive cocci
B. More active against gram negative enterobacteriaceae
C. Nonimmunogenic
D. Not excreted by tubular secretion