Re: [Gnumed-devel] Measurement conversion concepts

[Busser, Jim]

On 2013-12-05, at 10:29 AM, Jim Busser <address@hidden> wrote:

>       … could key to the foundational term
> 
>               length
> 
>       whereas
> 
>               glucose, serum
>               glucose, plasma
>               glucose, whole blood
>               glucose, CSF
>               glucose, urinary
>               glucose, capillary
> 
>       could all key to foundational analyte
> 
>               glucose

I was further thinking that the program logic of whether or not to compute 
conversions, for a selection of test results, could be guided by whether the 
linked

        clin.test_type  .conversion_key <---  (if we would agree to such a 
column)

contained

        a null value (in which case do not attempt conversion)

or contained

        a value (in which case to compute conversions, where matches are found).

-- Jim