Medical data provided by a physiological parameter sensor is used for management of the patient's medical condition. Analytes that may be monitored and managed include, but are not limited to, acetyl choline, amylase, bilirubin, cholesterol, chorionic gonadotropin, creatine kinase (e.g., CK-MB), creatine, glucose, glutamine, growth hormones, hormones, ketones, lactate, oxygen, peroxide, prostate-specific antigen, prothrombin, thyroid stimulating hormone, and troponin.