EHR Interoperability & Health Information Exchange 3 — Questions and Answers
Question 1: Which IHE (Integrating the Healthcare Enterprise) profile defines a standardized method for sharing clinical documents in a federated HIE environment?
- XDS (Cross-Enterprise Document Sharing) (Correct answer)
- PIX (Patient Identifier Cross-Referencing)
- PDQ (Patient Demographics Query)
- ATNA (Audit Trail and Node Authentication)
Correct answer: XDS (Cross-Enterprise Document Sharing)
XDS defines how clinical documents are registered, stored, and retrieved across healthcare enterprises in a federated model.
Question 2: A patient visits an emergency department and the care team needs lab results from a visit three months ago at another hospital. Which HIE exchange paradigm would most efficiently retrieve this data?
- Query/retrieve (pull) exchange (Correct answer)
- Push-based direct secure messaging
- Patient portal message
- Fax transmission
Correct answer: Query/retrieve (pull) exchange
Query/retrieve exchange allows providers to proactively search for and pull patient data from other organizations on demand.
Question 3: What does TEFCA stand for in the context of U.S. health information exchange policy?
- Trusted Exchange Framework and Common Agreement (Correct answer)
- Technical Exchange Framework for Clinical Applications
- Trusted EHR Framework and Connectivity Architecture
- Technical Exchange for Federal Care Access
Correct answer: Trusted Exchange Framework and Common Agreement
TEFCA establishes a common framework to enable nationwide health information exchange across different networks.
Question 4: Which data element is most critical for accurate patient matching in an HIE when a national patient identifier does not exist?
- Combination of demographics such as name, date of birth, and address (Correct answer)
- Insurance policy number alone
- Physician NPI number
- Facility tax ID
Correct answer: Combination of demographics such as name, date of birth, and address
Probabilistic or deterministic matching relies on multiple demographic data points to reduce misidentification errors.
Question 5: Which FHIR operation allows a client to retrieve a patient's complete health summary including medications, problems, and allergies in a single request?
- $summary
- $everything (Correct answer)
- $document
- $match
Correct answer: $everything
The $everything operation on a Patient resource returns all resources related to that patient in a single bundle.
Question 6: Under the 21st Century Cures Act, which practice is explicitly prohibited to promote interoperability?
- Information blocking (Correct answer)
- Charging fees for API access
- Using proprietary code systems
- Requiring patient consent for exchange
Correct answer: Information blocking
The 21st Century Cures Act prohibits information blocking — practices that interfere with the access, exchange, or use of electronic health information.
Question 7: Which organization certifies Health IT products under the ONC Health IT Certification Program to ensure they meet interoperability standards?
- Accredited Testing Laboratories (ATLs) and ONC-Authorized Certification Bodies (ONC-ACBs) (Correct answer)
- CMS alone
- Joint Commission
- State health departments
Correct answer: Accredited Testing Laboratories (ATLs) and ONC-Authorized Certification Bodies (ONC-ACBs)
ONC-authorized bodies test and certify EHR and health IT modules against federal standards for interoperability.
EHR Interoperability & Health Information Exchange 3
Which IHE (Integrating the Healthcare Enterprise) profile defines a standardized method for sharing clinical documents in a federated HIE environment?