CPHIMS CPHIMS Clinical Informatics Principles 3 — Questions and Answers
Question 1: The primary goal of computerized physician order entry (CPOE) in clinical settings is to:
- Replace nursing documentation
- Reduce medication errors caused by illegible handwriting and transcription (Correct answer)
- Automate insurance prior authorization
- Track physician productivity
Correct answer: Reduce medication errors caused by illegible handwriting and transcription
CPOE eliminates handwritten orders, reducing transcription errors and enabling real-time CDS checks at the point of ordering.
Question 2: Which data standard is MOST commonly used to encode diagnoses for billing and epidemiological reporting in the United States?
- SNOMED CT
- LOINC
- ICD-10-CM (Correct answer)
- RxNorm
Correct answer: ICD-10-CM
ICD-10-CM (International Classification of Diseases, 10th Revision, Clinical Modification) is the US standard for coding diagnoses on claims and public health reports.
Question 3: In clinical informatics, 'interoperability' at the semantic level means that:
- Two systems can exchange data files
- The shared meaning of data is preserved across different systems (Correct answer)
- Systems use the same hardware platform
- Data is encrypted during transmission
Correct answer: The shared meaning of data is preserved across different systems
Semantic interoperability ensures that the meaning of clinical data—not just its format—is consistently understood by both the sending and receiving system.
Question 4: A clinical informaticist is asked to evaluate why nurses skip structured data fields and free-text their assessments. The MOST appropriate first step is:
- Mandate structured field use through system settings
- Observe nurses in their workflow to understand the root cause (Correct answer)
- Remove the free-text option
- Retrain all nurses on documentation standards
Correct answer: Observe nurses in their workflow to understand the root cause
Observing clinicians in real workflows (contextual inquiry) reveals true barriers to structured documentation that surveys or audits may miss.
Question 5: FHIR (Fast Healthcare Interoperability Resources) differs from HL7 v2 primarily because FHIR:
- Uses pipe-delimited flat files
- Is based on modern web standards like REST and JSON/XML (Correct answer)
- Requires a VPN for data exchange
- Only supports laboratory data
Correct answer: Is based on modern web standards like REST and JSON/XML
FHIR leverages RESTful APIs, JSON, and XML—making it easier to implement with modern web and mobile development tools than legacy HL7 v2.
Question 6: When evaluating a clinical informatics system's impact on quality, which metric is MOST directly tied to patient outcomes?
- System uptime percentage
- Time-to-login for clinical staff
- Reduction in preventable adverse drug events (Correct answer)
- Number of structured data fields completed
Correct answer: Reduction in preventable adverse drug events
Reduction in preventable adverse drug events is a direct patient outcome measure tied to the clinical safety goals of informatics systems.
Question 7: A clinical decision support rule fires an alert for every patient admitted, regardless of clinical context. This violates which CDS best practice?
- Alert timeliness
- Alert specificity (Correct answer)
- Alert traceability
- Alert escalation
Correct answer: Alert specificity
CDS alerts should be specific to the clinical context—firing broadly for unrelated patients creates noise, alert fatigue, and undermines trust in the system.
CPHIMS CPHIMS Clinical Informatics Principles 3
The primary goal of computerized physician order entry (CPOE) in clinical settings is to: