EHR Clinical Decision Support Systems 4 ā Questions and Answers
Question 1: A CDS system flags a renal-dosed medication but the patient's creatinine value in the EHR is 3 weeks old. What risk does this represent?
- Stale data leading to incorrect or outdated clinical recommendations (Correct answer)
- Insufficient alert priority settings
- Missing drug formulary entry
- Incorrect ICD-10 mapping
Correct answer: Stale data leading to incorrect or outdated clinical recommendations
Using outdated lab values can cause CDS rules to produce inaccurate recommendations because the patient's current clinical status is not reflected.
Question 2: Which governance body within a health system is typically responsible for reviewing, approving, and retiring CDS rules?
- Clinical Informatics or Pharmacy & Therapeutics Committee (Correct answer)
- IT help desk
- Medical billing department
- Patient advisory council
Correct answer: Clinical Informatics or Pharmacy & Therapeutics Committee
A Clinical Informatics Committee or Pharmacy & Therapeutics Committee provides clinical oversight for CDS rule governance, including approval and retirement decisions.
Question 3: What is the primary goal of 'CDS Hooks' in modern EHR interoperability?
- To allow external CDS services to inject recommendations into EHR workflows via FHIR (Correct answer)
- To encrypt CDS alerts during transmission
- To log all override decisions to an audit trail
- To replace clinical staff decision-making entirely
Correct answer: To allow external CDS services to inject recommendations into EHR workflows via FHIR
CDS Hooks is a standard that enables external CDS services to deliver context-sensitive recommendations into EHR workflows using FHIR APIs.
Question 4: An EHR system alerts a nurse about a high-risk fall score calculated from documented assessment data. This is an example of which CDS category?
- Predictive risk scoring alert (Correct answer)
- Drugādrug interaction warning
- Diagnostic imaging recommendation
- Prior authorization reminder
Correct answer: Predictive risk scoring alert
Predictive risk scoring CDS uses clinical data to calculate a score (e.g., Morse Fall Scale) and alerts staff when a threshold indicates elevated risk.
Question 5: Which workflow integration point is considered highest impact for CDS targeting medication errors?
- At computerized physician order entry (CPOE) (Correct answer)
- At patient discharge
- At shift handoff
- During claims submission
Correct answer: At computerized physician order entry (CPOE)
Integrating CDS at CPOE allows real-time interception of potential medication errors before orders are transmitted to pharmacy.
Question 6: A pediatric CDS rule recommends adult-dose ibuprofen for a 4-year-old. What type of CDS failure occurred?
- Failure to apply weight- or age-based dosing logic (Correct answer)
- Missing drugādrug interaction check
- Incorrect allergy cross-reference
- Audit log misconfiguration
Correct answer: Failure to apply weight- or age-based dosing logic
Pediatric dosing requires weight- or age-based calculations; applying an adult-dose rule to a child represents a logic failure in the CDS dosing algorithm.
Question 7: Which approach best reduces alert fatigue without eliminating important safety alerts?
- Tiering alerts by severity and suppressing low-acuity informational notices (Correct answer)
- Removing all non-critical alerts from the system
- Requiring pharmacist sign-off on every alert
- Increasing the number of alerts fired per patient encounter
Correct answer: Tiering alerts by severity and suppressing low-acuity informational notices
Tiering alerts by clinical severity and suppressing low-priority informational messages reduces alert volume while preserving high-priority safety warnings.
EHR Clinical Decision Support Systems 4
A CDS system flags a renal-dosed medication but the patient's creatinine value in the EHR is 3 weeks old.
What risk does this represent?