CHDA PREP EXAM |ACTUAL QUESTIONS AND
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Information standards that provide clear descriptors of data elements to be included in
electronic health record systems are called _____ standards.
a. Vocabulary
b. Structure and content
c. Transaction
d. Security
CORRECT ANSWER
B. Structure and content standards identify the data elements, data element definitions,
and attributes of the data element, such as data type and length
Question 2
Which of the following may be the variable of interest in an attribute study?
a. Wait time in a clinic
b. Length of stay
c. Charges
d. Claim denial rate
CORRECT ANSWER
D. The RAT-STATS software supports determining an appropriate sample size for
attribute— studies where the variable of interest is a rate or proportion. Examples
include MS-DRG change rates, coding accuracy rates, or complication rates
1
, Question 3
You want to graph the average length of stay by sex and service for the month of April.
Which graphic tool would you use?
a. Bar graph
b. Histogram
c. Line graph
d. Pie chart
CORRECT ANSWER
Correct Answer: A
Bar charts are used to display data from one or more variables. The bars may be drawn
vertically or horizontally. Bar charts are used for nominal or ordinal variables. In this
case, you would be displaying the average length of stay by service and then within each
service have a bar for each gender
Question 4
A protocol to pass data from the R-ADT system of one vendor to the laboratory
information system of another vendor is called _____.
a. OLAP
b. Integration
c. TCP/IP
d. Interface
CORRECT ANSWER
Correct Answer: D
Interface is the hardware, software, data definitions, and standard messaging protocols
required for data to be exchanged among separate computer systems. In this case, the
interface allows the information to pass from the R-ADT system to the laboratory vendor
system
2
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Information standards that provide clear descriptors of data elements to be included in
electronic health record systems are called _____ standards.
a. Vocabulary
b. Structure and content
c. Transaction
d. Security
CORRECT ANSWER
B. Structure and content standards identify the data elements, data element definitions,
and attributes of the data element, such as data type and length
Question 2
Which of the following may be the variable of interest in an attribute study?
a. Wait time in a clinic
b. Length of stay
c. Charges
d. Claim denial rate
CORRECT ANSWER
D. The RAT-STATS software supports determining an appropriate sample size for
attribute— studies where the variable of interest is a rate or proportion. Examples
include MS-DRG change rates, coding accuracy rates, or complication rates
1
, Question 3
You want to graph the average length of stay by sex and service for the month of April.
Which graphic tool would you use?
a. Bar graph
b. Histogram
c. Line graph
d. Pie chart
CORRECT ANSWER
Correct Answer: A
Bar charts are used to display data from one or more variables. The bars may be drawn
vertically or horizontally. Bar charts are used for nominal or ordinal variables. In this
case, you would be displaying the average length of stay by service and then within each
service have a bar for each gender
Question 4
A protocol to pass data from the R-ADT system of one vendor to the laboratory
information system of another vendor is called _____.
a. OLAP
b. Integration
c. TCP/IP
d. Interface
CORRECT ANSWER
Correct Answer: D
Interface is the hardware, software, data definitions, and standard messaging protocols
required for data to be exchanged among separate computer systems. In this case, the
interface allows the information to pass from the R-ADT system to the laboratory vendor
system
2
