Author Question: Phenytoin requires that a trough level be drawn. Peak and trough levels are done: 1. When the ... (Read 26 times)

colton · **on:** Jul 24, 2018

Phenytoin requires that a trough level be drawn. Peak and trough levels are done:

1. When the drug has a wide therapeutic range
2. When the drug will be administered for a short time only
3. When there is a high correlation between the dose and saturation of receptor sites
4. To determine if a drug is in the therapeutic range

Question 2

The point in time on the drug concentration curve that indicates the first sign of a therapeutic effect is the:

1. Minimum adverse effect level
2. Peak of action
3. Onset of action
4. Therapeutic range