Bloodwork gives the doctor a look into the health and function of the major internal organs, as well as other blood parameters.  Many medications can benefit our pets in a multitude of ways, however some of them require monitoring in order to be safe and effective for your pet.   Monitoring ensures that your pet is receiving an effective dosage of medication as these requirements many changes.  Other medications may have side effects related to previously undetected issues with organ systems, such as kidney or liver.  Monitoring bloodwork for these changes and adjusting types or dosages of medication are important to keep your pet healthy for as long as possible.