CCS System Architecture and Design 2

Question 1

Which health information system component stores discrete clinical data elements such as lab results and vital signs for structured querying?

Accepted Answer

Clinical Data Repository (CDR)

Answer

A Clinical Data Repository (CDR) stores discrete, structured clinical data elements that can be queried and analyzed.

Question 2

In EHR architecture, what is the primary purpose of a Master Patient Index (MPI)?

Accepted Answer

Uniquely identify patients across multiple systems

Answer

An MPI assigns a unique identifier to each patient, enabling accurate matching across disparate healthcare systems.

Question 3

Which standard governs the exchange of clinical documents between healthcare systems using a structured, human-readable XML format?

Accepted Answer

HL7 CDA (Clinical Document Architecture)

Answer

HL7 CDA defines the structure and semantics of clinical documents for exchange, using XML that is both human-readable and machine-processable.

Question 4

What does the term 'data granularity' refer to in health information systems?

Accepted Answer

The level of detail at which data is captured and stored

Answer

Data granularity refers to the level of detail in data capture—fine-grained data captures individual elements, while coarse-grained data uses summary-level information.

Question 5

A hospital implements a system where every department accesses patient data from one central database rather than separate departmental databases. This is an example of which architecture?

Accepted Answer

Centralized architecture

Answer

Centralized architecture consolidates all data into a single repository, simplifying data consistency and access control.

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CCS System Architecture and Design 2