This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Therapeutic drug monitoring is used for all except? 
Select and explain. 
A. Drugs with low safety margin, B. In case of poisoning, C. To check patient compliance, D. To check the therapeutic effects of drug
D: To check the therapeutic effects of drug
Answer: D: To check the therapeutic effects of drug 
Explanation: Ans. is d i.e., To check the therapeutic effects of drug