ATI Engage Community Health: Using
Evidence-Module: Epidemiology Exam
2025 Questions and Answers
A public health nurse is teaching a newly licensed nurse how to determine the
prevalence rate of the top diseases in the county. Which of the following
information should the nurse provide to describe prevalence rate?
"The prevalence rate considers only those at risk for disease."
"The prevalence rate considers new cases of disease."
"The prevalence rate is a mortality measure."
"A case control study is used to measure the prevalence rate." -
....ANSWER ...-"The prevalence rate considers new cases of disease."
A public health nurse is reviewing laboratory results for a client who is being
screened for HIV. The results yield low specificity. Which of the following
statements by the client indicates an understanding of the laboratory results?
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,"I understand that the screening test may result in a false positive because it has
low specificity."
"I understand that the screening test may result in a false negative because it has
low specificity."
"If I screen negative, it means there is no way I can transmit HIV."
"Low specificity means I'll need to begin treatment right away." -
....ANSWER ...-"I understand that the screening test may result in a false
positive because it has low specificity."
A public health nurse is completing a institutional review board (IRB) application
for an analytic study in a community hospital following an outbreak of Escherichia
coli. Which of the following stages of the analytic study is the nurse engaged in?
Conduct/implementation
Conceptualization/design
Data analysis
Interpretation of findings - ....ANSWER ...-Conduct/implementation
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, A public health nurse is investigating a food-borne illness outbreak following a
community picnic attended by 107 people. 98 people who ate watermelon, 24
became ill. What attack rate should the nurse calculate for the watermelon? -
....ANSWER ...-25%
A community health nurse is providing teaching to a client who is being enrolled in
an epidemiological cohort study. Which of the following statements by the client
indicates an understanding of the teaching?
"The study will last for 10 years. You will contact me annually for an interview and
blood work."
"I will not know if I am going to be in the intervention or control group."
"The survey will take an hour to complete and then I'll be done."
"You'll need to find other participants like me but who do not have this disease." -
....ANSWER ...-"The study will last for 10 years. You will contact me
annually for an interview and blood work."
A community health nurse is providing teaching to a client who is enrolled in a
case-control study. Which of the following statements by the client indicates an
understanding of the teaching?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
Evidence-Module: Epidemiology Exam
2025 Questions and Answers
A public health nurse is teaching a newly licensed nurse how to determine the
prevalence rate of the top diseases in the county. Which of the following
information should the nurse provide to describe prevalence rate?
"The prevalence rate considers only those at risk for disease."
"The prevalence rate considers new cases of disease."
"The prevalence rate is a mortality measure."
"A case control study is used to measure the prevalence rate." -
....ANSWER ...-"The prevalence rate considers new cases of disease."
A public health nurse is reviewing laboratory results for a client who is being
screened for HIV. The results yield low specificity. Which of the following
statements by the client indicates an understanding of the laboratory results?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,"I understand that the screening test may result in a false positive because it has
low specificity."
"I understand that the screening test may result in a false negative because it has
low specificity."
"If I screen negative, it means there is no way I can transmit HIV."
"Low specificity means I'll need to begin treatment right away." -
....ANSWER ...-"I understand that the screening test may result in a false
positive because it has low specificity."
A public health nurse is completing a institutional review board (IRB) application
for an analytic study in a community hospital following an outbreak of Escherichia
coli. Which of the following stages of the analytic study is the nurse engaged in?
Conduct/implementation
Conceptualization/design
Data analysis
Interpretation of findings - ....ANSWER ...-Conduct/implementation
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, A public health nurse is investigating a food-borne illness outbreak following a
community picnic attended by 107 people. 98 people who ate watermelon, 24
became ill. What attack rate should the nurse calculate for the watermelon? -
....ANSWER ...-25%
A community health nurse is providing teaching to a client who is being enrolled in
an epidemiological cohort study. Which of the following statements by the client
indicates an understanding of the teaching?
"The study will last for 10 years. You will contact me annually for an interview and
blood work."
"I will not know if I am going to be in the intervention or control group."
"The survey will take an hour to complete and then I'll be done."
"You'll need to find other participants like me but who do not have this disease." -
....ANSWER ...-"The study will last for 10 years. You will contact me
annually for an interview and blood work."
A community health nurse is providing teaching to a client who is enrolled in a
case-control study. Which of the following statements by the client indicates an
understanding of the teaching?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
