Phenytoin requires that a trough level be drawn. Peak and trough ...

[colton]

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

[dyrone]

Answer to Question 1

4

Answer to Question 2

3

[colton]

Excellent

[ghepp]

Thanks for the timely response, appreciate it