Absorption is the movement of a drug from the site of administration to the
A: gastrointestinal tract
B: systemic circulation
C: portal vein
D: cell
E: action site
A: gastrointestinal tract
B: systemic circulation
C: portal vein
D: cell
E: action site
举一反三
- Absorption is the process of a drug entering systemic circulation from its site of administration. 这里administration的意思是？
- In<br/>terms of bioavailability, the following statements are true() A: The<br/>amount of a drug absorbed into the bloodstream B: The<br/>total amount of drug in the body at peak concentration C: The<br/>total amount of drug in the body at a steady-state concentration D: The<br/>amount and rate at which a drug is absorbed into the systemic<br/>circulation E: The<br/>amount of drug that passes through the gastrointestinal tract into<br/>the hepatic portal vein
- For systemic effects, a drug may be placed directly to the desired site of action.
- Bioavailability is: A: Amount of drug that reach the systemic circulation B: Drug metabolized in liver before the drug reaches the systemic circulation C: Drug metabolized in liver after the drug reaches the systemic circulation D: Maximum by rectal route
- Bioavailability reflects that A: The size of apparent distribution volume B: Amount of drug entering systemic circulation C: The length of half-life of drug plasma D: Effect of drug absorption rate on drug efficacy E: The speed of drug elimination