System Architecture and Design Flashcards
7 cards from real CCS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 System Architecture and Design flashcards as text
Which health information system component stores discrete clinical data elements such as lab results and vital signs for structured querying?
Answer: Clinical Data Repository (CDR)
A Clinical Data Repository (CDR) stores discrete, structured clinical data elements that can be queried and analyzed.
In EHR architecture, what is the primary purpose of a Master Patient Index (MPI)?
Answer: Uniquely identify patients across multiple systems
An MPI assigns a unique identifier to each patient, enabling accurate matching across disparate healthcare systems.
Which standard governs the exchange of clinical documents between healthcare systems using a structured, human-readable XML format?
Answer: HL7 CDA (Clinical Document Architecture)
HL7 CDA defines the structure and semantics of clinical documents for exchange, using XML that is both human-readable and machine-processable.
What does the term 'data granularity' refer to in health information systems?
Answer: The level of detail at which data is captured and stored
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.
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?
Answer: Centralized architecture
Centralized architecture consolidates all data into a single repository, simplifying data consistency and access control.
Which component of an EHR system captures clinician orders for medications, labs, and imaging electronically to replace paper order forms?
Answer: CPOE (Computerized Physician Order Entry)
CPOE systems allow clinicians to enter orders electronically, reducing transcription errors and improving workflow efficiency.
In health IT, what is the role of an interface engine?
Answer: Translate and route messages between disparate healthcare systems
An interface engine acts as middleware that translates, maps, and routes data messages between systems that use different formats or protocols.