Maintenance prescribing 142 value

Automatic process control involves the maintenance of a desired value of a measured or estimated quantity (controlled variable) within prescribed limits (deviations, errors), without the direct action of an operator. Generally, this involves three steps ... 

If no loading dose is administered and a maintenance dose of 0.1 mg/day is prescribed, how many days would be required for digitoxin levels to reach 90% of their expected steady-state value ... 

Maintenance and testing should be carried out at regular and prescribed intervals by competent and experienced personnel. Recording of the results and values measured will provide a baseline figure for assessing any subsequent deterioration in performance or quality. 

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