AHIMA Health IT Systems 3 — Questions and Answers
Question 1: An HIE receives a laboratory result but cannot match it to the correct patient. Which master data management tool is used to link patient records across systems?
- Data warehouse
- Enterprise Master Patient Index (EMPI) (Correct answer)
- Clinical data repository
- Health information portal
Correct answer: Enterprise Master Patient Index (EMPI)
An Enterprise Master Patient Index (EMPI) links patient identities across disparate systems using probabilistic or deterministic matching algorithms.
Question 2: Which imaging standard defines how medical images are stored, transmitted, and displayed in healthcare information systems?
- HL7 v2
- FHIR R4
- DICOM (Correct answer)
- IHE XDS
Correct answer: DICOM
DICOM (Digital Imaging and Communications in Medicine) is the international standard for medical images and related information.
Question 3: A patient portal allows patients to view their records but uses only username and password. To meet NIST AAL2 guidelines, what should be added?
- Role-based access control
- Multi-factor authentication (Correct answer)
- Single sign-on
- Audit logging
Correct answer: Multi-factor authentication
NIST AAL2 (Authenticator Assurance Level 2) requires multi-factor authentication using two different authentication factors.
Question 4: Which health IT governance framework defines controls for IT services aligned to business needs and is widely used by healthcare CIOs?
- HITRUST CSF
- COBIT (Correct answer)
- ISO 27001
- NIST SP 800-66
Correct answer: COBIT
COBIT (Control Objectives for Information and Related Technologies) is an IT governance framework that aligns IT management with organizational goals.
Question 5: In EHR implementation, which go-live strategy involves running the old and new system simultaneously for a period before fully switching?
- Big bang cutover
- Phased rollout
- Parallel processing (Correct answer)
- Pilot deployment
Correct answer: Parallel processing
Parallel processing runs old and new systems simultaneously, allowing comparison and validation before decommissioning the legacy system.
Question 6: Which terminology standard is used to represent nursing diagnoses, interventions, and outcomes in clinical information systems?
- ICD-10-CM
- SNOMED CT
- NANDA-I / NIC / NOC (Correct answer)
- LOINC
Correct answer: NANDA-I / NIC / NOC
NANDA-I (diagnoses), NIC (interventions), and NOC (outcomes) form the standardized nursing terminology used in clinical documentation systems.
Question 7: A health system's data warehouse uses a star schema. What is the central table in this design?
- Dimension table
- Fact table (Correct answer)
- Bridge table
- Lookup table
Correct answer: Fact table
In a star schema, the fact table sits at the center and contains quantitative measures, while dimension tables surround it with descriptive attributes.
AHIMA Health IT Systems 3
An HIE receives a laboratory result but cannot match it to the correct patient.
Which master data management tool is used to link patient records across systems?