Clinical Decision Support and Knowledge Management
Clinical decision support and knowledge management tests how you design, deploy, and maintain CDS. Questions focus on the Five Rights, CDS types, governance, alert fatigue, and measurement, including when to revise or retire a rule.
CDS fundamentals
- The Five Rights are right information, right person, right format, right channel, and right time in the workflow.
- CDS types include order sets, alerts, reminders, reference information, documentation templates, risk scores, and CDS Hooks.
- Knowledge management covers acquisition, validation, representation, deployment, maintenance, and retirement, with version control and named owners.
Governance and measurement
- A CDS committee reviews evidence, workflow fit, and potential harm before release.
- Measure baseline performance, firing rate, acceptance, override rate, and process or outcome effects. High override rates often signal poor specificity or poor timing.
- De-implementation is part of stewardship: remove rules that are obsolete, duplicated, or low value.
Worked example
A team designs a VTE prophylaxis alert. Reasoning: the right patient is identified by a validated risk score; the right time is admission or first order session; the right format is a non-interruptive suggestion at order entry; the right channel is the CPOE order set. The team measures baseline prophylaxis rate, alert firing, acceptance, and VTE rate. If overrides exceed 90%, it revises the trigger rather than adding another alert.
Traps
An alert with no actionable order; no baseline measurement; no post-deployment monitoring; one threshold for all patients; leaving obsolete rules live.