AHIC Data Analytics and Data Management 3

Question 1

A hospital is integrating lab results from multiple EHR systems that use different LOINC codes for the same test. Which interoperability layer does this problem primarily affect?

Accepted Answer

Semantic interoperability

Answer

Semantic interoperability ensures that data shared between systems carries the same meaning, requiring standardized terminologies like LOINC to be consistently applied.

Question 2

Which statistical measure is most resistant to the influence of extreme outlier values in a clinical dataset?

Accepted Answer

Median

Answer

The median is the middle value and is not affected by extreme outliers, making it more robust than the mean for skewed clinical distributions.

Question 3

In a clinical decision support system, a rule fires an alert for every fifth patient, regardless of clinical relevance. This is an example of which problem?

Accepted Answer

Alert fatigue from low specificity

Answer

Alert fatigue occurs when too many low-specificity alerts fire, causing clinicians to ignore or override them, reducing patient safety benefit.

Question 4

Which NoSQL database model stores data as key-value pairs and is best suited for session management and real-time caching in health IT applications?

Accepted Answer

Key-value store

Answer

Key-value stores offer O(1) lookup by key and are ideal for high-speed caching and session data where only simple retrieval by identifier is needed.

Question 5

What does the term 'data lineage' refer to in a health data management context?

Accepted Answer

The audit trail showing where data originated and how it transformed over time

Answer

Data lineage documents the origin, movement, and transformation of data through systems, enabling traceability and root-cause analysis of data quality issues.

(AHIC) AMIA Health Informatics Certification Practice Test

(AHIC) AMIA Health Informatics Certification Practice Test

AHIC Data Analytics and Data Management 3