DP Chemistry (last assessment 2024)
Question 17N.3.sl.TZ0.18
| Date | November 2017 | Marks available | [Maximum mark: 2] | Reference code | 17N.3.sl.TZ0.18 |
| Level | sl | Paper | 3 | Time zone | TZ0 |
| Command term | Outline | Question number | 18 | Adapted from | N/A |
18.
[Maximum mark: 2]
17N.3.sl.TZ0.18
New drugs undergo thorough clinical trials before they are approved.
(a)
Outline the difference between the therapeutic index in animal studies and the therapeutic index in humans.
[1]
Markscheme
in animal studies AND in humans
OR
in animal studies lethal dose/LD50 AND in humans toxic dose/TD50
(b)
State the method of drug administration that gives the maximum bioavailability.
[1]
Markscheme
intravenous/IV «injection»
OR
injection into the bloodstream