[Gnumed-devel] Measurements - lessons from other EMRs - limiting the amount of lab data fetched

[Busser, Jim]

I have been worrying about the case where GNUmed accumulates a large amount of 
measurements per patient. Querying and reporting every test that a patient has 
has would slow things down, and risk to show data in which the clinician is 
uninterested.

The problem of selecting arbitrary time frames (30 days, 60 days) is that 
important lab history can always live just *outside* whatever time frame is 
selected and so I could see value to a query that selects

        per test_type available on a patient ...

        the most recent available result
        the most recent abnormal result
        the maximum val_num
        the minimum val_num
        the oldest abnormal result
        the oldest available result

Displaying to the right of the test_types

        Most recent        Latest AbN        Max        Min        Oldest AbN   
     Oldest

where the dates would not be in the column headings but, instead, within the 
tooltips.

-- Jim