Informatics Nurse Test Clinical Decision Support Systems 2 — Questions and Answers
Question 1: Which CDSS knowledge representation format uses IF-THEN logic to encode clinical rules?
- Arden Syntax (Correct answer)
- HL7 FHIR
- SNOMED CT
- ICD-10
Correct answer: Arden Syntax
Arden Syntax is a formal language using IF-THEN Medical Logic Modules (MLMs) to represent and share clinical decision rules.
Question 2: A 'hard stop' in a CDSS workflow means:
- The system logs the event and continues
- The clinician must change the order or obtain an override before proceeding (Correct answer)
- The alert is silent and sent only to a pharmacist
- The order is automatically cancelled
Correct answer: The clinician must change the order or obtain an override before proceeding
A hard stop blocks order completion until the clinician modifies the order or an authorized override is documented.
Question 3: In CDSS governance, who is primarily responsible for approving new clinical alert rules?
- The EHR vendor
- A multidisciplinary Clinical Decision Support Committee (Correct answer)
- The hospital billing department
- The network security team
Correct answer: A multidisciplinary Clinical Decision Support Committee
A multidisciplinary CDS Committee including clinicians, pharmacists, and informatics professionals reviews and approves new CDSS rules.
Question 4: Which outcome measure indicates that a CDSS medication alert is clinically valuable?
- High volume of alerts generated
- Reduction in adverse drug events following implementation (Correct answer)
- Increased time spent on documentation
- Lower nurse satisfaction scores
Correct answer: Reduction in adverse drug events following implementation
A reduction in adverse drug events demonstrates that the CDSS alert is identifying real risks and improving patient safety.
Question 5: CDS Hooks is a standard used to:
- Encrypt patient data during transmission
- Integrate CDSS services with EHR workflows via web service calls (Correct answer)
- Create nursing care plans automatically
- Connect lab analyzers to the EHR
Correct answer: Integrate CDSS services with EHR workflows via web service calls
CDS Hooks is an HL7 standard that allows external CDSS services to be invoked at specific EHR workflow moments via RESTful web service calls.
Question 6: An informatics nurse notices that a sepsis screening CDSS alert fires for nearly every patient in the ED. The BEST next step is to:
- Disable the alert immediately
- Analyze the alert logic and triggering criteria for potential refinement (Correct answer)
- Increase the number of alerts to catch more cases
- Escalate to hospital administration without further analysis
Correct answer: Analyze the alert logic and triggering criteria for potential refinement
Reviewing the triggering criteria helps identify if the alert logic is too sensitive, allowing refinement to improve specificity without losing sensitivity.
Informatics Nurse Test Clinical Decision Support Systems 2
Which CDSS knowledge representation format uses IF-THEN logic to encode clinical rules?