The method involves adjusting a physiological parameter of a patient to a target range. A time interval (TM) is added to last measuring time, and check is made whether preliminary next measuring time lies in the exclusion time windows. Next measuring time is determined by considering measurement exclusion time windows (EX). Recommendation for dosage of an active ingredient to be administered to the patient is calculated until the next measuring time based on a dosage proposal algorithm including patient data e.g. patient weight. An independent claim is also included for a diagnostic blood analyzer for receiving samples taken from a patient at discrete measuring times.
