Page 1 of 66
ATI RN Epidemiology Assessment EXAMINATION 2025 UPDATED 2025 – 2026 WITH
QUESTIONS WITH CORRECT ANSWERS VERIFIED 100% GRADED A+
ATI RN Epidemiology Assessment
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?
1. "The prevalence rate considers only those at risk for disease."
2. "The prevalence rate considers new cases of disease."
3. "The prevalence rate is a mortality measure."
4. A case control study is used to measure the prevalence rate."
2. "The prevalence rate considers new cases of disease."
When taking the action of teaching about prevalence rate, the nurse should explain
that the prevalence rate includes both new and existing 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?
1. "I understand that the screening test may result in a false positive because it
has a low specificity."
2. "I understand that the screening test may result in a false negative because
it has low specificity."
3. "If I screen negative, it means there is no way I can transmit HIV."
4. "Low specificity means I'll need to begin treatment right away."
1. "I understand that the screening test may result in a false positive because it has
low specificity."
When evaluating outcomes, the nurse should recognize the client's understanding
when the client states that a screening test with a low specificity may produce false
positive results.
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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?
1. Conduct/implementation
2. Conceptualization/design
3. Data analysis
4. Interpretation of findings
1. Conduct/implementation
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?
25%
24/98= 0.245
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?
1. "The study will last for 10 years. You will contact me annually for an
interview and blood work."
2. "I will not know if I am going to be in the intervention or control group."
3. "The survey will take an hour to complete and then I'll be done."
4. "You'll need to find other participants like me but who do not have this
disease."
1. "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?
1. "The study will last for 10 years. You will contact me annually for an
interview and blood work."
2. "I will not know if I am going to be in the intervention or control group."
3. "The survey will take an hour to complete and then I'll be done."
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4. "You'll need to find other participants like me but who do not have this
disease."
4. "You'll need to find other participants like me but who do not have this disease."
A community health nurse is using the United States Preventive Services Task
Force (USPSTF) guidelines to recommend health screenings for a client. The
nurse should identify that which of the following descriptions applies to Grade
A screening?
1. "Research indicates this screening exam is beneficial. I would like to offer it
to you."
2. "Research indicates this screening exam has a small benefit. Let's discuss
this more to see if this screening is right for you."
3. "Research indicates this screening is not warranted at this time and may, in
fact, be harmful."
4. "There is not enough evidence to determine if this screening is helpful or
not. Let's take a closer look at this recommendation together."
1. "Research indicates this screening exam is beneficial. I would like to offer it to
you."
A nurse in a community clinic is interviewing a client about their asthma
diagnosis. Which of the following questions by the nurse represents
prevalence?
1. "Have you ever had asthma?"
2. "Have you had asthma withing the last three years?"
3. "Do you have asthma now?"
4. "When were you diagnosed with asthma?"
3. "Do you have asthma now?"
A community health nurse is providing teaching to a group of college students
who are preparing for a cultural immersion trip to a country where malaria is
endemic. The nurse recommends the students spray a mosquito insecticide in
their sleeping quarters before bedtime each night. Which of the following parts
of the epidemiologic triangle does the nurse's recommendation reflect?
1. Host
2. Environment
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3. Vector
4. Agent
3. Vector
A community health nurse is making recommendations for illness surveillance
measures in public schools to a local school board. Which of the following
core functions of epidemiology is the nurse engaged in?
1. Policy development
2. Linkages
3. Surveillance
4. Evaluation
1. Policy development.
Illness surveillance is an activity associated with policy development.
A home health nurse is assessing a client who was recently hospitalized for
pneumonia and no longer reports shortness of breath on ambulation. The
nurse should identify that the client is in which of the following stages of the
natural history of disease model?
1. Incubation period
2. Stage of susceptibility
3. Stage of clinical illness
4. Stage of recovery, disability, or death
4. Stage of recovery, disability, or death
A community health nurse is creating a handout for clients on methods to
naturally enhance their immunity against infectious diseases. The nurse
should identify that this information will target which of the following links in
the chain of infection?
1. Portal of exit
2. Portal of entry
3. Reservoir
4. Susceptible host
4. Susceptible host
ATI RN Epidemiology Assessment EXAMINATION 2025 UPDATED 2025 – 2026 WITH
QUESTIONS WITH CORRECT ANSWERS VERIFIED 100% GRADED A+
ATI RN Epidemiology Assessment
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?
1. "The prevalence rate considers only those at risk for disease."
2. "The prevalence rate considers new cases of disease."
3. "The prevalence rate is a mortality measure."
4. A case control study is used to measure the prevalence rate."
2. "The prevalence rate considers new cases of disease."
When taking the action of teaching about prevalence rate, the nurse should explain
that the prevalence rate includes both new and existing 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?
1. "I understand that the screening test may result in a false positive because it
has a low specificity."
2. "I understand that the screening test may result in a false negative because
it has low specificity."
3. "If I screen negative, it means there is no way I can transmit HIV."
4. "Low specificity means I'll need to begin treatment right away."
1. "I understand that the screening test may result in a false positive because it has
low specificity."
When evaluating outcomes, the nurse should recognize the client's understanding
when the client states that a screening test with a low specificity may produce false
positive results.
, Page 2 of 66
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?
1. Conduct/implementation
2. Conceptualization/design
3. Data analysis
4. Interpretation of findings
1. Conduct/implementation
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?
25%
24/98= 0.245
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?
1. "The study will last for 10 years. You will contact me annually for an
interview and blood work."
2. "I will not know if I am going to be in the intervention or control group."
3. "The survey will take an hour to complete and then I'll be done."
4. "You'll need to find other participants like me but who do not have this
disease."
1. "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?
1. "The study will last for 10 years. You will contact me annually for an
interview and blood work."
2. "I will not know if I am going to be in the intervention or control group."
3. "The survey will take an hour to complete and then I'll be done."
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4. "You'll need to find other participants like me but who do not have this
disease."
4. "You'll need to find other participants like me but who do not have this disease."
A community health nurse is using the United States Preventive Services Task
Force (USPSTF) guidelines to recommend health screenings for a client. The
nurse should identify that which of the following descriptions applies to Grade
A screening?
1. "Research indicates this screening exam is beneficial. I would like to offer it
to you."
2. "Research indicates this screening exam has a small benefit. Let's discuss
this more to see if this screening is right for you."
3. "Research indicates this screening is not warranted at this time and may, in
fact, be harmful."
4. "There is not enough evidence to determine if this screening is helpful or
not. Let's take a closer look at this recommendation together."
1. "Research indicates this screening exam is beneficial. I would like to offer it to
you."
A nurse in a community clinic is interviewing a client about their asthma
diagnosis. Which of the following questions by the nurse represents
prevalence?
1. "Have you ever had asthma?"
2. "Have you had asthma withing the last three years?"
3. "Do you have asthma now?"
4. "When were you diagnosed with asthma?"
3. "Do you have asthma now?"
A community health nurse is providing teaching to a group of college students
who are preparing for a cultural immersion trip to a country where malaria is
endemic. The nurse recommends the students spray a mosquito insecticide in
their sleeping quarters before bedtime each night. Which of the following parts
of the epidemiologic triangle does the nurse's recommendation reflect?
1. Host
2. Environment
, Page 4 of 66
3. Vector
4. Agent
3. Vector
A community health nurse is making recommendations for illness surveillance
measures in public schools to a local school board. Which of the following
core functions of epidemiology is the nurse engaged in?
1. Policy development
2. Linkages
3. Surveillance
4. Evaluation
1. Policy development.
Illness surveillance is an activity associated with policy development.
A home health nurse is assessing a client who was recently hospitalized for
pneumonia and no longer reports shortness of breath on ambulation. The
nurse should identify that the client is in which of the following stages of the
natural history of disease model?
1. Incubation period
2. Stage of susceptibility
3. Stage of clinical illness
4. Stage of recovery, disability, or death
4. Stage of recovery, disability, or death
A community health nurse is creating a handout for clients on methods to
naturally enhance their immunity against infectious diseases. The nurse
should identify that this information will target which of the following links in
the chain of infection?
1. Portal of exit
2. Portal of entry
3. Reservoir
4. Susceptible host
4. Susceptible host
