Psychopharmacology exam one with verified question and answers

Psychopharmacology exam one with verified question and answers 1. After drug administration has occurred, the amount of drug in the blood that is free to bind at specific target sites is/are referred to as? A. The therapeutic dose B. First-pass effects C. Bioavailablity D. ED50: C.Bioavailablity 2. The first pass effect occurs with orally administered drugs because ? a. Their absorption is slowed by food b. drug absorbed into the bloodstream from the stomach goes to the liver on the way to the general circulation. c. a drug must first survive the acidic environment of the stomach. d. salivary enzymes in the mouth begin the process of metabolism.: b. drug absorbed into the bloodstream from the stomach goes to the liver on the way to the general circulation. 3. Toxic substances in the blood trigger a vomiting response by activating the a. blood-brain barrier. b. choroid plexus. c. area postrema. d. median eminence.: C. Area postrema