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Midterml Exam:l NRl 503/l NR503l (Latestl
2026/l 2027l Update)l Populationl Health,l Epidemiology,l &l Statisticall Principlesl Guide|l Q/Al |l Gradel A|l 100%l Correctl (Verifiedl Answers)l -Chamberlain
Q:l Healthyl Peoplel 2030
Answer:
l l l l Attainl healthy,l thrivingl livesl andl well-beingl freel ofl preventablel disease,l disability,l injury,l andl prematurel death.l l l l Eliminatel healthl disparities,l achievel improvedl healthl forl alll people,l andl attainl healthl literacyl tol improvel thel healthl andl well-beingl ofl all.l l l l Createl social,l physical,l andl economicl environmentsl thatl promotel attainingl thel fulll potentiall forl healthl andl well-beingl forl all.l l l l Promotel healthyl development,l healthyl behaviors,l andl well-beingl acrossl alll lifel stages.l l l l Engagel leadership,l keyl constituents,l andl thel publicl acrossl multiplel sectorsl tol takel actionl andl designl policiesl thatl improvel thel healthl andl well-beingl ofl all.
Q:l Determinantsl ofl care/health
Answer:
Thel rangel ofl personal,l social,l economic,l andl environmentall factorsl thatl influencel healthl statusl arel knownl ...
Q:l riskl analysis
Answer:
thel characterizationl ofl thel potentiall adversel healthl effectsl ofl humanl exposuresl tol environmentall hazards
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Q:l healthl disparities
Answer:
thel differencel inl healthl statusesl betweenl variousl groupsl (populations).
Q:l Sensitivity
Answer:
measuresl thel proportionl ofl actuall positivesl thatl arel correctlyl identifiedl asl suchl (e.g.,l thel percentagel ofl sickl peoplel whol arel correctlyl identifiedl asl havingl thel condition)
Q:l Specificity
Answer:
(alsol calledl thel truel negativel rate)l measuresl thel proportionl ofl actuall negativesl thatl arel correctlyl identifiedl asl suchl (e.g.,l thel percentagel ofl healthyl peoplel whol arel correctlyl identifiedl asl notl havingl thel condition)
Q:l Positivel predictivel value
Answer:
isl thel probabilityl thatl subjectsl withl al positivel screeningl testl trulyl havel thel disease
Q:l epidemiologicall triangle
Answer:
1.l Al traditionall modell ofl infectiousl diseasel causation,l knownl asl thel Epidemiologicl Triadl isl depictedl inl Figurel 2.l Thel triadl consistsl ofl anl externall agent,l al hostl andl anl environmentl inl whichl hostl andl agentl arel broughtl together,l causingl thel diseasel tol occurl inl thel host.
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Q:l confoundingl variable
Answer:
isl anl "extra"l variablel thatl youl didn'tl accountl for.l Theyl canl ruinl anl experimentl andl givel youl uselessl results.l Theyl canl suggestl therel isl correlationl whenl inl factl therel isn't.l Theyl canl evenl introducel bias.l That'sl whyl it'sl importantl tol knowl whatl onel is,l andl howl tol avoidl gettingl theml intol yourl experimentl inl thel firstl place
Q:l Studyl Methods
Answer:
descriptivel andl analytic
Q:l descriptivel study
Answer:
describesl personl placel andl time.l Providedl datal forl programl planning,l resourcel planning,l andl generatesl al hypothesis.l Typesl includel correlationall studies,l casel reportsl andl studies,l andl cross-sectionall studies.
Q:l analyticl study
Answer:
consistsl ofl observationall andl experimental.l Observationall includel casel controll andl cohort.l Experimentall includesl randoml controll triall (typicallyl forl newl drugl testing),l fieldl triall (conductedl onl thosel whol havel al highl riskl ofl obtainedl al disease),l andl communityl triall (researchl isl conductedl onl anl entirel communityl orl neighborhood).l Testl al hypothesis.
Q:l Isl screeningl al tertiaryl intervention?l Ifl yes,l why,l ifl not,l whatl isl it?
Answer:
No,l itl isl secondary.
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Q:l Howl doesl al providerl determinel thel usefulness,l appropriateness,l ofl al screeningl test?l Wherel wouldl andl NPl lookl tol findl al screeningl test?l Whatl determinesl ifl al screeningl testl shouldl bel used?
Answer:
Determiningl whetherl al screeningl testl isl appropriatel requiresl thel APRNl tol addressl severall aspectsl ofl thel diseasel ofl interest.l Thel targetl populationl needsl tol bel identifiable.l Therel shouldl bel enoughl peoplel tol makel thel studyl costl effective.l Thel preclinicall periodl shouldl bel proficientl tol allowl treatmentl beforel symptomsl appearl sol thatl earlyl diagnosisl andl treatmentl makel al differencel inl termsl ofl outcomes.l Thel NPl couldl lookl atl thel U.S.l Preventativel Servicesl Taskl Force,l Agencyl forl Healthcarel Researchl andl Quality,l andl SAMHSA-HRSAl tol findl al screeningl test.l Sensitivityl andl specificityl measurel thel validityl ofl al test.l Sensitivityl isl thel numberl identified/l thel numberl affected.l Specificityl isl thel numberl identifiedl inl thel screeningl ofl notl havingl thel disease/l thel actuall numberl whol dol notl havel thel disease.
Q:l Canl youl explainl whatl "descriptivel epidemiology"l means?l Whatl isl thel purpose?l Howl isl itl used?
Answer:
Itl coversl timel placel andl person.First,l byl lookingl atl thel datal carefully,l thel epidemiologistl becomesl veryl familiarl withl thel data.l Hel orl shel canl seel whatl thel datal canl orl cannotl reveall basedl onl thel variablesl available,l itsl limitationsl (forl example,l thel numberl ofl recordsl withl missingl informationl forl eachl importantl variable),l andl itsl eccentricitiesl (forl example,l alll casesl rangel inl agel froml 2l monthsl tol 6l years,l plusl onel 17-year-old.).Second,l thel epidemiologistl learnsl thel extentl andl patternl ofl thel publicl healthl probleml beingl investigatedl —l whichl months,l whichl neighborhoods,l andl whichl groupsl ofl peoplel havel thel mostl andl leastl cases.Third,l thel epidemiologistl createsl al detailedl descriptionl ofl thel healthl ofl al populationl thatl canl bel easilyl communicatedl withl tables,l graphs,l andl maps.Fourth,l thel epidemiologistl canl identifyl areasl orl groupsl withinl thel populationl thatl havel highl ratesl ofl disease.l Thisl informationl inl turnl providesl importantl cluesl tol thel causesl ofl thel disease,l andl thesel cluesl canl bel turnedl intol testablel hypotheses.
Q:l Howl arel causationl andl descriptivel epidemiologyl related,l howl dol theyl workl togetherl tol aidl evidence-basedl care?
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