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A Guideline-Derived Model to Facilitate the Implementation of Test-Ordering Rules within a Hospital
Information System Mobin YASINI, Catherine DUCLOS, Alain VENOT, Eric LEPAGE, Jean-Baptiste LAMY
LIM&BIO (Medical informatics and bioinformatics laboratory) –UFR SMBH- 74 rue Marcel Cachin – 93017 Bobigny, France
http://www-limbio.smbh.univ-paris13.fr
Mobin YASINI, MD, MPH
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• Test ordering rules were extracted
• Clinical situa3ons were considered for test ordering rules Example: Itera3ve ordering for ANCA is indicated three to six months a>er the former request Situa3on 1 : ANCA is reordered before 3 months (Test overuse) Situa3on 2 : ANCA is not reordered a>er 6 months (Test underuse) • Analyzing clinical situa3ons led to extrac3on of condi3ons
• Condi3ons were categorized using UML modeling
• Valida3on of the model
• Mapping to HL7 RIM
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Triggers : - New lab test order - New prescription - Lab result - Clinical problem
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• Feasibility of implemen3ng test ordering rules
• The model clarifies the informa3on elements that have to be formalized and coded in EHR (Test orders, laboratory results, clinical condi3ons, procedures, medical treatments)
• The model is generalizable
• Why not using exis3ng models to integrate guidelines in computer-‐interpretable formats ?
• Declara3ve : not a formal computa3onal model aimed at guideline execu3on • Not conceptualized for test ordering rules
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• Alert fa3gue : a common cause of overriding decision support systems alerts by clinicians • The ability of the model to show the reminders according to the user
• Mapping to HL7 : exchanging data between different informa3on systems
• Implemen3ng test-‐ordering rules enables further evalua3on of reminder effects
• Formula3on of new laboratory guidelines
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