FHIR Chat · Multiple Observation Components

Stream: implementers

Topic: Multiple Observation Components

Ma Sk (Aug 22 2019 at 00:39):

Hey guys,

i want to do something like this
ddd-t44.PNG

But i can´t get my head around how to set a component in an observation or multiple components.

At first i used something like this because i just sent one chunk of data:
observation.setValue(
new SampledData()
.setOrigin(new Quantity()
.setUnit(unit)
.setSystem(messageData.getUnitSystem())
.setCode(unit))
.setData(value));

Now i need to put multiple data chunks in one Fhir bundle and therefore i need multiple components, right?

Thanks in advance

Lloyd McKenzie (Aug 22 2019 at 01:57):

Components are used when everything was captured at a single point in time - multiple chunks sounds like multiple Observations.

Ma Sk (Aug 22 2019 at 02:15):

I already have all data that i need. I just have to put it inside a bundle and send it to the server.
What i mean with multiple chunks is, that i have for example multiple brain wave data from one EEG scan.
I want to send everything at once but i need to know which value is from which brain wave.

Ma Sk (Aug 22 2019 at 02:19):

The output should look like this
sdfdse.PNG
adsfdsfe.PNG

Lloyd McKenzie (Aug 22 2019 at 02:23):

Ok - if you have multiple waves from the same sample period, component is reasonable if they're typically sent/interpreted together. Why do you need Bundle if you just have a single Observation with multiple components?

Ma Sk (Aug 22 2019 at 02:29):

I use a bundle because i have more information, for example patient data and so on.
Do you know how to get this done with multiple components? It would be nice to have a small example.

Lloyd McKenzie (Aug 22 2019 at 02:31):

You should be able to do a .addComponent or do a .setComponent to a typed collection you can then add to.

Ma Sk (Aug 22 2019 at 02:51):

Okay, adding ".addComponent()" did the trick. Thank you very much

    observation.addComponent()
            .setValue(
                    new SampledData().setOrigin(new Quantity()
                                .setUnit(unit)
                                .setSystem(messageData.getUnitSystem())
                                .setCode(unit))
            .setData(value));

Lloyd McKenzie (Aug 22 2019 at 03:49):

Note that you're going to need to set a code for the component too - to identify which waveform you're representing

Last updated: Apr 12 2022 at 19:14 UTC

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FHIR Chat · Multiple Observation Components · implementers