# Indirect Oximetry

**URL:** <https://discourse.openehr.org/t/indirect-oximetry/15313>\
**Category:** Technical (archive)\
**Created:** [2 September 2014 13:05 UTC](https://discourse.openehr.org/t/indirect-oximetry/15313 "2014-09-02T13:05:35Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![system](https://discourse.openehr.org/uploads/default/original/2X/f/f0a1dedb20c42747bddcafd6c7df9db5f34f003c.svg) [@system](https://discourse.openehr.org/u/system)\
**Post date:** [2 September 2014 13:05 UTC](https://discourse.openehr.org/t/indirect-oximetry/15313/1 "2014-09-02T13:05:35Z")

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Hi Folks,

quick question (hope this has not been asked before. Is there a way to quickly search in the archive?). As far I’m able to work with the CKM, it seems it has never been discussed why events in the indirect oximetry archetype have a limit of 1. Is there a reason for this limitation while other vital parameters I know of may contain an unlimited number of events?

I know that I would be able to change the archetype for our use case (automized vital parameter monitoring at ICUs) but I would like to get some opinions on this first. Thanks!

Best,

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**Author:** ![system](https://discourse.openehr.org/uploads/default/original/2X/f/f0a1dedb20c42747bddcafd6c7df9db5f34f003c.svg) [@system](https://discourse.openehr.org/u/system)\
**Post date:** [2 September 2014 13:07 UTC](https://discourse.openehr.org/t/indirect-oximetry/15313/2 "2014-09-02T13:07:06Z")

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Hi Folks,

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**Author:** ![system](https://discourse.openehr.org/uploads/default/original/2X/f/f0a1dedb20c42747bddcafd6c7df9db5f34f003c.svg) [@system](https://discourse.openehr.org/u/system)\
**Post date:** [2 September 2014 13:12 UTC](https://discourse.openehr.org/t/indirect-oximetry/15313/3 "2014-09-02T13:12:50Z")

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Sorry, this was supposed to be sent to the "clinical" list. Appologies! 🙂

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**Author:** ![siljelb](https://discourse.openehr.org/user_avatar/discourse.openehr.org/siljelb/32/12_2.png) [@siljelb](https://discourse.openehr.org/u/siljelb)\
**Post date:** [2 September 2014 13:43 UTC](https://discourse.openehr.org/t/indirect-oximetry/15313/4 "2014-09-02T13:43:34Z")

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I think you might have an old version of this archetype. In the [openEHR.org](http://openEHR.org) CKM this limitation was fixed by Ian McNicoll in March 2013. I believe the 0..1 occurrences constraint originally was an error.

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**Author:** ![system](https://discourse.openehr.org/uploads/default/original/2X/f/f0a1dedb20c42747bddcafd6c7df9db5f34f003c.svg) [@system](https://discourse.openehr.org/u/system)\
**Post date:** [2 September 2014 13:46 UTC](https://discourse.openehr.org/t/indirect-oximetry/15313/5 "2014-09-02T13:46:54Z")

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Oops, I must have overlooked it in the CKM. Twice. You are completly right, our version was outdated. Thank you very much!

Best,

Birger