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Introduction

CDS Hooks is a technology from SMART on FHIR that allows third-party CDS systems to register with an EHR using a "hook" pattern.  The third-party CDS system is able to provide the EHR with information in the form of "cards" that the EHR may use to show the end-user or otherwise interweave into the workflow.  The HSPC Bilirubin system is able to use CDS Hooks to alert the EHR of babies that are at risk of Kernicterus.  

Prerequisites 

  • Patient and observation data must be loaded into the EHR
    • See datapack dstu2/usecases/cds-hooks.fhir-bundle.xml 
    • Birthdays must be for one day prior to the current date
    • Observation effective date must be the same as the current date

Example Using the HSPC Bilirubin System

SMART on FHIR Test Harness

STEP 1

Launch the SMART on FHIR Test Harness at http://hooks.fhir.me/



STEP 2

Enable the Bilirubin Patient View hook (hint: search for "bilirubin", select Configure Hooks again to close)



STEP 3

Select Patient View. This represents an EHR patient view screen "action"



STEP 4

Observe the default patient (not a baby) sees no Bilirubin Card

STEP 5

Select Change Patient and enter value of "ID-BabyWithoutBilirubinObservation"



STEP 6

Observe a Bilirubin card is returned to the EHR stating that the baby has no bilirubin observations



STEP 7

Select Change Patient and enter the value of "ID-BabyWithBilirubinObservation"



STEP 8

Observe a Bilirubin card is returned to the EHR stating that the baby has a bilirubin level that exceeds thresholds.

 

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