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Date: Sun, 20 Oct 96 12:49:54 PDT From: bc9801 To: Adrian Midgeley Subject: Re: Re: anticoagulation Second attempt at reply after first attempt disappeared into the cosmos! The reference goes back as far as 1984 if the grey cells serve me correctly. The algorithm worked out daily dosages which used decimal fractions of a mg, which obviously wasn't easy for the hard-pressed SHO to work out . INRstar gets round this by calculating the weekly dose and dividing it into seven doses based on the three milligram pill, so that patients often take different doses each day. For those who are on very small or very large doses the schedule DOES default to the 1mg or 5mg pill. So far it has only been writtent for Windows but several people are looking at the idea of incorporating it into multiuser systems and Unix would be the obvious choice. The point about hit rate is a good one - right know te software only examines the tests, not the days to which those tests relate. The other point I didn't mention is that one reason we doctors are relatively poor at managing INR is because we have this mental autodrive which says that all patients on warfaring need to have an INR maintained between 2 and 3, which of course is rubbish. Robert Robert Treharne Jones aka 'Wizard Wheeze Computing' 8 Oxlea Road, Torquay TQ1 2HF 01803 214864 (Home) 605359 (Work) email: [log in to unmask] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%