Clinical Decision Support Systems Flashcards
7 cards from real Clinical Informatics Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Clinical Decision Support Systems flashcards as text
A predictive model integrated into a CDS tool has high sensitivity but low specificity for predicting 30-day readmission. What is the MOST likely operational consequence?
Answer: Clinicians receive many alerts for patients who would not have been readmitted, increasing workload
High sensitivity/low specificity means many false positives; clinicians are alerted frequently for low-risk patients, increasing alert burden without proportional benefit.
Which principle from implementation science BEST explains why a well-designed CDS tool fails to change prescribing behavior after go-live?
Answer: Lack of end-user engagement and workflow integration during the design phase
Implementation science consistently shows that clinician engagement and workflow fit during design are stronger predictors of adoption than technical quality alone.
A CDS system recommends a lower warfarin dose based on a patient's CYP2C9 genotype. This BEST exemplifies which application of CDS?
Answer: Pharmacogenomics-guided prescribing support
CYP2C9 genotype directly influences warfarin metabolism, and CDS that incorporates genomic data to guide dosing is a pharmacogenomics application.
Which FHIR resource is used by CDS Hooks 'cards' to return a recommended action back to the EHR?
Answer: A structured suggestion within the CDS Hooks response card payload
CDS Hooks cards return structured suggestions (e.g., create/update FHIR resources) as part of the card payload, which the EHR can render and optionally auto-apply.
Which approach BEST reduces racial or socioeconomic bias when deploying a machine learning-based CDS tool?
Answer: Prospective auditing of model performance across demographic subgroups with adjustment if disparities are found
Ongoing subgroup performance auditing detects disparate impact and enables iterative correction, which is the recommended practice for equitable AI deployment.
A CDS order set for community-acquired pneumonia automatically selects a fluoroquinolone as the default antibiotic. This design choice MOST likely leads to:
Answer: Overuse of fluoroquinolones due to default bias even when narrower-spectrum agents are appropriate
Default selections in order sets are accepted at high rates due to status quo bias; defaulting to broad-spectrum agents drives overuse regardless of appropriateness.
Which organization publishes the Leapfrog Hospital Survey, which includes a measure evaluating hospitals' CDS capabilities for computerized physician order entry?
Answer: The Leapfrog Group
The Leapfrog Group's annual hospital survey includes a CPOE evaluation tool that tests whether hospitals' CDS catches common prescribing errors.