EHR Clinical Decision Support Systems 5 — Questions and Answers
Question 1: Which FHIR resource is most commonly used as the trigger context for a CDS Hooks service call?
- Patient and encounter resources passed in the hook context (Correct answer)
- DocumentReference for scanned records
- Binary resource for PDF attachments
- AuditEvent for security logging
Correct answer: Patient and encounter resources passed in the hook context
CDS Hooks services receive patient and encounter FHIR resources as context, enabling the external service to evaluate relevant patient data and return recommendations.
Question 2: A CDS rule recommends influenza vaccination for all adults, but a patient already received it last month outside the health system. What EHR data gap does this highlight?
- Incomplete immunization history due to lack of external data exchange (Correct answer)
- Missing problem list documentation
- Incorrect medication allergy entry
- Billing code mismatch
Correct answer: Incomplete immunization history due to lack of external data exchange
When immunization records from outside organizations are not exchanged via immunization registries or HIEs, CDS rules cannot account for vaccinations given elsewhere.
Question 3: What is 'clinical decision support governance' primarily concerned with?
- Lifecycle management of CDS rules including creation, review, and retirement (Correct answer)
- Configuring firewall rules for EHR servers
- Assigning user access permissions in the EHR
- Scheduling system downtime windows
Correct answer: Lifecycle management of CDS rules including creation, review, and retirement
CDS governance manages the entire lifecycle of clinical rules, ensuring they remain evidence-based, accurate, and clinically appropriate over time.
Question 4: Which outcome measure would best demonstrate that a glycemic management CDS intervention is improving patient safety?
- Reduction in hypoglycemic episodes among inpatients (Correct answer)
- Increase in the number of alerts fired
- Decrease in EHR login time
- Higher override rate for insulin orders
Correct answer: Reduction in hypoglycemic episodes among inpatients
A reduction in hypoglycemic episodes directly demonstrates that the CDS intervention is producing safer blood glucose management outcomes.
Question 5: A CDS alert is configured to interrupt a physician who is documenting a note, unrelated to the alert topic. According to best practices, this design violates which principle?
- Right channel and right time — the alert interrupts an unrelated workflow (Correct answer)
- Right person — the alert targets the wrong clinician
- Right format — the alert uses incorrect color coding
- Right content — the clinical information is inaccurate
Correct answer: Right channel and right time — the alert interrupts an unrelated workflow
Interrupting a clinician during an unrelated task violates the 'right time' and 'right channel' principles by delivering the alert outside the relevant workflow context.
Question 6: Which HL7 standard framework provides a model for categorizing CDS interventions by their level of automation and integration?
- Osheroff's CDS Framework / HIMSS CDS Taxonomy (Correct answer)
- ICD-10-CM coding guidelines
- HL7 v2 ORU messaging
- SNOMED CT concept hierarchy
Correct answer: Osheroff's CDS Framework / HIMSS CDS Taxonomy
The HIMSS/Osheroff CDS Framework categorizes CDS interventions by type, workflow integration point, and degree of system automation.
Question 7: A pharmacy CDS system automatically places a hard stop on ordering a medication with a known fatal interaction. What is this intervention type called?
- Hard stop (forcing function) (Correct answer)
- Soft alert with override option
- Passive reference
- Audit-only alert
Correct answer: Hard stop (forcing function)
A hard stop or forcing function prevents order completion entirely when a severe safety risk is detected, unlike soft alerts that allow override.
EHR Clinical Decision Support Systems 5
Which FHIR resource is most commonly used as the trigger context for a CDS Hooks service call?