In the field of health care, it is vital to ensure that patients receive the optimal dose and effect of their medications. This can be achieved by developing and using monitoring tests harnessed to perform closed-loop observations of treatments and their respective medications. This service measures the drug concentration and its effect on the patient’s body. These tests can provide feedback to the prescribers, who can then adjust the treatment accordingly. By using closed-loop monitoring, patients can benefit from improved outcomes and reduced adverse effects of their medications.