Informatics Nurse Test Clinical Decision Support Systems 1 — Questions and Answers
Question 1: What is the primary purpose of a Clinical Decision Support System (CDSS) in nursing informatics?
- To replace nurse judgment with automated decisions
- To provide evidence-based alerts and recommendations at the point of care (Correct answer)
- To store patient records securely
- To schedule nursing staff shifts
Correct answer: To provide evidence-based alerts and recommendations at the point of care
CDSS provides evidence-based alerts and recommendations to clinicians at the point of care to improve patient safety and outcomes.
Question 2: Which type of CDSS alert fires when a prescribed medication exceeds a safe dosage threshold?
- Drug-drug interaction alert
- Dose range checking alert (Correct answer)
- Allergy alert
- Duplicate therapy alert
Correct answer: Dose range checking alert
Dose range checking alerts notify clinicians when an ordered dose falls outside the safe high or low limits for that drug.
Question 3: Alert fatigue in CDSS occurs most commonly when:
- Alerts are too difficult to dismiss
- Too many low-priority alerts fire, causing clinicians to override them without review (Correct answer)
- Alerts are only visible on mobile devices
- CDSS is not integrated with the EHR
Correct answer: Too many low-priority alerts fire, causing clinicians to override them without review
Alert fatigue results from an excessive volume of low-priority alerts, leading clinicians to override or ignore them reflexively.
Question 4: An informatics nurse is evaluating CDSS effectiveness. Which metric BEST measures appropriate alert response?
- Number of alerts generated per day
- Alert override rate (Correct answer)
- Total EHR login attempts
- Number of orders placed
Correct answer: Alert override rate
The alert override rate indicates how often clinicians bypass alerts, helping identify whether alerts are acted upon appropriately.
Question 5: Which CDSS intervention is classified as a 'passive' decision support tool?
- Interruptive pop-up alert
- Mandatory order set
- Reference information accessible within the EHR workflow (Correct answer)
- Hard stop requiring pharmacist override
Correct answer: Reference information accessible within the EHR workflow
Passive CDSS tools, such as embedded reference information, provide guidance only when the clinician actively seeks it rather than interrupting workflow.
Question 6: When implementing a new CDSS rule, the informatics nurse should FIRST:
- Go live immediately to capture real-world data
- Conduct a pilot with a small user group to assess accuracy and workflow impact (Correct answer)
- Notify all staff via email
- Disable conflicting legacy alerts without review
Correct answer: Conduct a pilot with a small user group to assess accuracy and workflow impact
Piloting a new CDSS rule in a controlled group allows the team to evaluate performance and unintended consequences before broad deployment.
Informatics Nurse Test Clinical Decision Support Systems 1
What is the primary purpose of a Clinical Decision Support System (CDSS) in nursing informatics?