CHDA EXAM QUESTIONS AND
ANSWERS 100% CORRECT
When an Entity Relationship Diagram (ERD) is implemented as a relational database,
an attribute will become a(n): - ANSWER-Field
Attributes are the characteristics or data elements to be collected about each entity.
They can be depicted in an ERD as oval shapes coming off an entity. Attributes become
the fields or column headings within the data tables of a relational database (Sayles and
Trawick 2010, 96).
A researcher would like to test the null hypothesis that the mean wait time at four urgent
care sites is equal. What statistical test should the researcher use in this situation? -
ANSWER-ANOVA
The statistical tool used to compare more than two populations is called an analysis of
variance (ANOVA). The null hypothesis for an ANOVA is that the population means to
be compared are equal (White 2013, 92).
______ is the combination of certain items (such as anesthesia, supplies, and drugs) for
the purpose of reimbursement. - ANSWER-Packaging
Packaging means that payment for that service is packaged into payment for other
services and, therefore, there is no separate APC payment. Packaged services might
include minor ancillary services, inexpensive drugs, medical supplies, and implantable
devices (LaTour et al. 2013, 437).
All of the following is a kind of technology that focuses on data security except _____. -
ANSWER-Smart Cards
Which of the following basic services provided by an HIE entity ensures that information
can be retrieved as needed? - ANSWER-Secure data transport
A basic service provided by an HIE organization must be the actual transmission of the
data. This is the technical networking service that provides appropriate bandwidth,
latency, availability, ubiquity, and security
Community Memorial Hospital discharged nine patients on April 1. The length of stay for
each patient is shown in the following table. The average length of stay for these nine
patients was:
Patient Number of Days
A1
B5
,C3
D3
E8
F8
G8
H9
I 9 - ANSWER-6 days
Security includes "physical and electronic protection of the integrity, availability, and
confidentiality of computer-based information and the resources used to enter, store,
process, and communicate it; and the means to control access and protect information
from accidental or intentional disclosure" (Harman 2006, 635).
The management of all aspects of health data and information through the application of
computers and computer technologies is called _____. - ANSWER-Healthcare
informatics
Health informatics and information management is concerned with the timely and
accurate capture and processing of this transactional information (LaTour et al. 2013,
158).
The _____ mandated the development of transaction and code set standards for
electronic health records - ANSWER-Health Insurance Portability and Accountability Act
of 1996
One of the purposes of HIPAA's Administrative Simplification rules was to standardize
information exchange (LaTour et al. 2013, 206).
Name the government agency that has led the development of basic data sets for
health records and computer databases: - ANSWER-National Committee on Vital and
Health Statistics
NHIN was mentioned first by the Institute of Medicine (IOM) in its seminal report, "The
Computer-Based Patient Record: An Essential Technology for Health Care." A decade
later, the National Health Information Infrastructure was defined further by the National
Committee on Vital and Health Statistics (NCVHS) in its report "Information for Health: A
Strategy for Building the National Health Information Infrastructure"
The application of information science to the management of healthcare data and
information through computer technology is referred to as: - ANSWER-Health
Informatics
Health informatics and information management is concerned with the timely and
accurate capture and processing of this transactional information. (LaTour et al. 2013,
158).
,Which of the following statements is true of structured query language (SQL)? -
ANSWER-It defines data elements and manipulates and controls data.
Structured query language (SQL) includes both data dictionary language and data
manipulation language components and is used to create and manipulate relational
databases (Sayles and Trawick 2010, 177-178, Shaw and Carter 2014, 130, 228).
The relationship between patient gender and readmission to the hospital is best
displayed using a: - ANSWER-Contingency table
Contingency tables are a useful method for displaying the relationship between two
categorical variables. Contingency tables are often referred to by the number of rows
and columns (White 2013, 58-59).
When determining the suitability of a data element for secondary use, the analyst
should consider which attribute first: - ANSWER-Reliability and validity
Secondary use: Using data for a purpose other than that for which it was originally
collected. For example, using of billing data to measure the quality of care is a
secondary use. The primary use of that data is to trigger a payment for services
The average length of stay (ALOS) is calculated from the total LOS. The total LOS
divided by the number of patients discharged is the ALOS. Using the data provided, the
ALOS for the 9 patients discharged on April 1 is 6 days () (LaTour et al. 2013, 490;
Shaw and Carter 2014, 23, 171).
Data mapping is used to harmonize data sets or code sets. The code or data set from
which the map originates is the: - ANSWER-Source
For the purposes of mapping, the term coding system is used very broadly to include
classification, terminology, and other data representation systems. Mapping is
necessary as health information systems and their use evolves in order to link disparate
systems and data sets. Any data map will include a source and a target. The source is
the code or data set from which the map originates
Population-based registries assist public health agencies in identifying the ______of a
disease. - ANSWER-Incidence
The data from facility-based registries are used to provide information for the improved
understanding of cancer, including its causes and methods of diagnosis and treatment.
The data collected also may provide comparisons in survival rates and quality of life for
patients with different treatments and at different stages of cancer at the time of
diagnosis. In population-based registries, emphasis is on identifying trends and changes
in the incidence (new cases) of cancer within the area covered by the registry (LaTour
et al. 2013, 370).
, A coding service had 400 discharged records to code in March. The service coded 200
within 3 days, 100 within 5 days, 50 within 8 days, and 50 within 10 days. The average
turnaround time (TAT) for coding in March was: - ANSWER-5 days
The average turnaround time was calculated by dividing the total response days
attributed to the volume of routine requests that were responded to within the reporting
period by the volume of routine requests responded to. The calculation is: (200 × 3) +
(100 × 5) + (50 × 8) + (50 × 10) / 400 = 5 days (LaTour et al. 2013, 815).
Which of the following is an example of analog data? - ANSWER-Photographic, chest x-
ray film
Photographic chest x-ray film are all diagnostic image data that are based on analog,
photographic films (LaTour et al. 2013, 84-85; Shaw and Carter 2014, 45, 180).
PACS may be found in a: - ANSWER-RIS
The radiology database contains the results of the examination as unstructured data
after the images are read by the radiologist. The actual image may be available in the
RIS through the use of a picture archiving and communication system (PACS). This
database is normally interfaced to the patient accounts database (White 2013, 32).
Which punctuation symbol must appear at the end of each SAS statement? -
ANSWER-';'
Note that each SAS statement must end in a semicolon. The semi colon is a signal to
the SAS program that the statement is complete. (White 2013, 46; Delwiche and
Slaughter 2003, 6)
Relational databases that store historical, demographic and transaction data about
clinical, administrative, and financial patient information are referred to as _____. -
ANSWER-Data warehouses
Data warehouses have been used primarily to store the following data: clinical
management, operations management, outcomes management, population
management, and revenue management (LaTour et al. 2013, 94).
A primary key in a table: - ANSWER-Must be unique for each row in the table
The primary key uniquely identifies the row in the database (White 2013, 180).
Dictated and transcribed reports and notes written by the physicians and other
practitioners are examples of: - ANSWER-Unstructured data
