No , if anything the data available in the two Tables suggest that Drug A and vancomycin are nearly equipotent.
Item Ia No .
The rank orders of sensitivities to the two drugs are identical, in fact. No . Come now, renal insufficiency is not known to shorten the half-life of any substance. At any rate, renal insufficiency does not affect the persistence of microbiologically active chloramphenicol in the body, because it is primarily cleared by glucuronide conjugation in the liver. Well, both drugs are effective in tuberculosis, but resistance to both can impair their effectiveness. On three counts.