Many psychiatric disorders require laboratory testing to rule out substance abuse, medication compliance, toxicity, or medical conditions.  Therapeutic drug monitoring for certain drugs has been well documented to improve the use of these agents for therapeutic management of the disorder and has become the standard of care in psychiatry.  The monitoring of these labs are necessary for the safety of the client.  Labs are done on a routine basis and clients are made aware of the times and rationales.  Standard routine labs will also be conducted due to the nature of some of the medications that can be prescribed.  Collection of routine labs help with secondary and tertiary prevention.