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D522 – Healthcare Information Systems Examination Preparation (2026 Edition) — Electronic Health Records, Health IT Infrastructure, Data Standards, Interoperability, Clinical Decision Support, Privacy & Security Compliance with Verified Practice Questions

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This D522 – Healthcare Information Systems Examination Preparation resource (2026 Edition) is a structured, competency-aligned study guide designed for students enrolled in WGU and comparable healthcare informatics or leadership programs. The content includes exam-style practice questions with verified answers and clear rationales, covering electronic health record (EHR) systems, healthcare IT infrastructure, data standards and interoperability (HL7, FHIR), clinical decision support systems, health information exchange, system implementation and adoption, privacy and security regulations (HIPAA), and the role of information systems in quality improvement and patient safety. Developed to reflect current WGU course objectives and healthcare IT best practices, this resource supports exam readiness, applied informatics understanding, and strategic decision-making skills for healthcare professionals preparing for assessment in 2026

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D522 WGU
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D522 WGU

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❖ D522 – Healthcare Information Systems Examination Preparation
(2026 Edition) — Electronic Health Records, Health IT
Infrastructure, Data Standards, Interoperability, Clinical Decision
Support, Privacy & Security Compliance with Verified Practice
Questions
Question 1: What is the primary purpose of a Healthcare Information System (HIS)?
• A) To increase the revenue of healthcare organizations
• B) To improve patient care and safety
• C) To manage the administrative tasks of healthcare staff
• D) To implement telemedicine solutions
Correct Option: B) To improve patient care and safety
Rationale:
The primary purpose of a Healthcare Information System is to enhance patient care and
safety by ensuring accurate and timely information is available to healthcare providers.
HIS supports clinical decision-making, facilitates efficient data management, and
promotes better outcomes through comprehensive health records and streamlined
processes.


Question 2: Which of the following is a key component of Electronic Health
Records (EHRs)?
• A) Billing and coding systems
• B) Laboratory information systems
• C) Patient demographics and medical history
• D) Telehealth capabilities
Correct Option: C) Patient demographics and medical history
Rationale:
A key component of Electronic Health Records (EHRs) is the inclusion of patient
demographics and medical history. This information is vital for healthcare providers to
deliver personalized and informed care, track medical history over time, and enhance
continuity of care. While other systems contribute to the overall landscape of
healthcare data management, the core function of EHRs revolves around managing
patient-specific information.


Question 3: What does interoperability in healthcare information systems refer to?
• A) The ability of systems to analyze data independently

, • B) The ability of different systems to exchange and use information
• C) The standardization of electronic health records
• D) The process of training healthcare staff
Correct Option: B) The ability of different systems to exchange and use information
Rationale:
Interoperability in healthcare refers to the capability of various healthcare information
systems to communicate, exchange, and utilize data effectively. This is crucial for
coordinated care, allowing healthcare providers to access comprehensive patient
information from different health systems, ensuring that decisions are made based on
complete and accurate data.


Question 4: Which legislation established national standards for electronic
healthcare transactions in the United States?
• A) HIPAA (Health Insurance Portability and Accountability Act)
• B) HITECH Act (Health Information Technology for Economic and Clinical Health)
• C) Affordable Care Act
• D) ERISA (Employee Retirement Income Security Act)
Correct Option: A) HIPAA (Health Insurance Portability and Accountability Act)
Rationale:
HIPAA was enacted to establish national standards for much of the healthcare data
exchanged and streamlining the electronic transfer of healthcare information. It set
important guidelines for protecting patient confidentiality and the security of electronic
health records, making it foundational in governing how health information is managed.


Question 5: What is the most significant benefit of using Clinical Decision Support
Systems (CDSS)?
• A) Reducing the number of healthcare providers
• B) Enhancing communication between patients and healthcare systems
• C) Assisting healthcare providers in making informed clinical decisions
• D) Automating administrative tasks in healthcare institutions
Correct Option: C) Assisting healthcare providers in making informed clinical
decisions
Rationale:
The primary benefit of Clinical Decision Support Systems (CDSS) is to aid healthcare

,providers in making informed clinical decisions. These systems analyze patient data
and provide evidence-based recommendations, alerts, and reminders that enhance the
clinical workflow, increase safety, and improve patient outcomes. They serve as
valuable tools in managing complex cases and are integral to supporting the quality of
care.
Question 6: What is a disadvantage of manual health record keeping?
• A) It is time-consuming
• B) It ensures patient privacy
• C) It is easily accessible
• D) It allows for standardized documentation
Correct Option: A) It is time-consuming
Rationale:
Manual health record keeping can be significantly time-consuming as it requires more
effort to maintain and retrieve information. This hinders efficiency, creates potential for
errors, and can affect the quality of patient care due to delays in accessing vital
information.


Question 7: Which of the following best describes “Big Data” in the context of
healthcare?
• A) Small datasets for detailed analysis
• B) Large volumes of data that can be analyzed for insights
• C) Only structured data from EHRs
• D) Data that only comes from financial reports
Correct Option: B) Large volumes of data that can be analyzed for insights
Rationale:
In healthcare, "Big Data" refers to the extensive volumes of data generated from various
sources, including EHRs, wearable devices, and clinical trials. This data can be
analyzed to derive insights that improve patient care, enhance research, and optimize
operational efficiency.


Question 8: What is the function of a Health Information Exchange (HIE)?
• A) To manage patient billing
• B) To facilitate the electronic transfer of health information among organizations
• C) To provide patient education materials

, • D) To standardize health insurance plans
Correct Option: B) To facilitate the electronic transfer of health information among
organizations
Rationale:
A Health Information Exchange (HIE) enables healthcare entities to share patient
information electronically, improving coordination and continuity of care. By allowing
different organizations to access and exchange data, HIEs enhance clinical decision-
making and reduce redundant tests.


Question 9: What is the primary purpose of a Clinical Data Repository (CDR)?
• A) Storing billing information
• B) Centralizing clinical data from various sources for analysis
• C) Managing administrative workflows
• D) Facilitating telemedicine consultations
Correct Option: B) Centralizing clinical data from various sources for analysis
Rationale:
A Clinical Data Repository (CDR) serves to centralize and store clinical data from
multiple sources, allowing for efficient analysis and reporting. This enables healthcare
providers to access comprehensive patient information quickly, which is essential for
informed clinical decision-making and research.


Question 10: In what way does telemedicine enhance healthcare delivery?
• A) By increasing the number of office visits
• B) By allowing remote patient monitoring and consultations
• C) By eliminating the need for healthcare providers
• D) By reducing access to medical records
Correct Option: B) By allowing remote patient monitoring and consultations
Rationale:
Telemedicine enhances healthcare delivery by providing remote patient monitoring and
consultations, which increases patient access to healthcare services, especially in rural
or underserved areas. It allows for timely interventions and follow-ups without the need
for in-person visits, improving patient engagement and outcomes.

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