CAHIMS CAHIMS Data Analytics and Reporting 2 — Questions and Answers
Question 1: What is the role of ETL in healthcare data warehousing?
- Encrypting, Transmitting, and Logging data
- Extracting, Transforming, and Loading data from source systems into a warehouse (Correct answer)
- Evaluating, Testing, and Launching new systems
- Exporting, Transferring, and Linking records across facilities
Correct answer: Extracting, Transforming, and Loading data from source systems into a warehouse
ETL (Extract, Transform, Load) is the process of pulling data from source systems, converting it to a standard format, and loading it into a data warehouse for analysis.
Question 2: Which visualization type is best suited for showing the distribution of patient ages in a population?
- Pie chart
- Histogram (Correct answer)
- Scatter plot
- Gantt chart
Correct answer: Histogram
A histogram displays the frequency distribution of continuous numerical data such as patient ages across defined intervals.
Question 3: What is 'data normalization' in the context of healthcare databases?
- Encrypting data at rest
- Organizing data to reduce redundancy and improve integrity (Correct answer)
- Converting paper records to digital format
- Standardizing ICD-10 codes across departments
Correct answer: Organizing data to reduce redundancy and improve integrity
Data normalization restructures relational database tables to minimize duplication and ensure logical data dependencies, improving consistency.
Question 4: A CAHIMS professional is asked to build a dashboard for hospital administrators. Which step should come FIRST?
- Select dashboard software
- Identify key metrics and stakeholder information needs (Correct answer)
- Pull raw data from the EHR
- Design the visual layout
Correct answer: Identify key metrics and stakeholder information needs
Defining stakeholder requirements and key metrics must precede any technical or design decisions to ensure the dashboard delivers actionable insights.
Question 5: Which metric measures the proportion of patients who are readmitted to the hospital within 30 days of discharge?
- Average length of stay
- 30-day readmission rate (Correct answer)
- Case mix index
- Bed occupancy rate
Correct answer: 30-day readmission rate
The 30-day readmission rate is a widely used CMS quality metric tracking the percentage of patients who return to the hospital within 30 days of discharge.
Question 6: What is the primary advantage of using a clinical data repository (CDR) in a healthcare organization?
- It replaces the need for an EHR system
- It provides a centralized, integrated view of patient data from multiple source systems (Correct answer)
- It automates billing and coding functions
- It manages human resources and payroll data
Correct answer: It provides a centralized, integrated view of patient data from multiple source systems
A CDR aggregates data from disparate clinical systems into one repository, enabling comprehensive views of patient information for care and analytics.
CAHIMS CAHIMS Data Analytics and Reporting 2
What is the role of ETL in healthcare data warehousing?