Medical Mcqs

All of the following statements regarding biovailability of a drug are true except______________?
  • (A)  It is the proportion (fraction) of unchanged drug that reaches the systemic circulation
  • (B)  Biovailability of an orally administered drug can be calculated by comparing the area under cure (o-a) after oral and intravenous (IV) administration
  • (C)  Low oral biovailability always and necessarily mean poor absorption
  • (D)  Biovailability can be determined from plasma concentration or urinary excretion data
Drug efficacy refers to_________________?
  • (A)  Range of disease in which the drug beneficial
  • (B)  Maximal intensity of response that can be produced by the drug
  • (C)  The therapeutic does range of the drug
  • (D)  The therapeutic index of the drug