CCS System Architecture and Design 2 — Questions and Answers
Question 1: Which health information system component stores discrete clinical data elements such as lab results and vital signs for structured querying?
- Clinical Data Repository (CDR) (Correct answer)
- Document Management System
- Master Patient Index
- Encoder Software
Correct answer: Clinical Data Repository (CDR)
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)?
- Store billing transactions
- Uniquely identify patients across multiple systems (Correct answer)
- Generate encounter-based charge captures
- Manage physician credentialing data
Correct answer: Uniquely identify patients across multiple systems
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?
- X12 EDI
- HL7 CDA (Clinical Document Architecture) (Correct answer)
- DICOM
- NCPDP SCRIPT
Correct 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.
Question 4: What does the term 'data granularity' refer to in health information systems?
- The speed at which data is transmitted
- The level of detail at which data is captured and stored (Correct answer)
- The encryption strength of stored data
- The number of users who can access data simultaneously
Correct 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.
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?
- Distributed architecture
- Federated database model
- Centralized architecture (Correct answer)
- Point-to-point integration
Correct answer: Centralized architecture
Centralized architecture consolidates all data into a single repository, simplifying data consistency and access control.
Question 6: Which component of an EHR system captures clinician orders for medications, labs, and imaging electronically to replace paper order forms?
- CPOE (Computerized Physician Order Entry) (Correct answer)
- CDR (Clinical Data Repository)
- PACS (Picture Archiving and Communication System)
- ADT (Admission, Discharge, Transfer)
Correct answer: CPOE (Computerized Physician Order Entry)
CPOE systems allow clinicians to enter orders electronically, reducing transcription errors and improving workflow efficiency.
Question 7: In health IT, what is the role of an interface engine?
- Encrypt patient data at rest
- Translate and route messages between disparate healthcare systems (Correct answer)
- Generate clinical decision support alerts
- Archive inactive patient records
Correct 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.
CCS System Architecture and Design 2
Which health information system component stores discrete clinical data elements such as lab results and vital signs for structured querying?