ABGC Boards Prenatal Exam Study Set With 100% Correct And Verified Answers 2025

ABGC Boards Prenatal Exam Study Set
With 100% Correct And Verified Answers
2025
T21TRiskTbyTMaternalTAgeT-TCorrectTAnswer-Age-------------------------------Risk
30T--------------------------------1/952T(.1%)
35T--------------------------------1/385T(.3%)
37T--------------------------------1/227T(.4%)
40T--------------------------------1/106T(.9%)
43T--------------------------------1/50T(3.1%)

RiskTofTAnyTChromTAbnlTbyTMaternalTAgeT-TCorrectTAnswer-
Age--------------------------------Risk
30---------------------------------1/384T(0.3%)
35---------------------------------1/202T(0.5%)
37---------------------------------1/129T(0.8%)
40---------------------------------1/65T(1.6%)
43---------------------------------1/32T(3.1%)

MaternalTSerumTQuadTScreenT-TCorrectTAnswer-
MeasurementTofTbiochemicalTanalytesTinTmaternalTserumTtoTprovideTadjustedTriskTforT
certainTconditions.T

PerformedTduringTsecondTtrimesterTtypicallyT14-21Tweeks

SLOTvsTXLTichthyosis,

SLOThasTpreTandTpostnatalTgrowthTrestrictionsT-TCorrectTAnswer-
DifferentialsTforTextremelyTlowTuE3TonTQUADTscreenTandThowTcanTyouTdifferentiate

Non-disjunctionTinTMeiosisTIT-TCorrectTAnswer-
WhatTisTtheTmostTcommonTcauseTofTaneuploidy

QuadTscreenTconditionsT-TCorrectTAnswer--OpenTNeuralTtubeTdefects
-TDownTSyndrome
-TTrisomyT18

QuadTscreenTanalytesT-TCorrectTAnswer--AFPT(alpha-fetoprotein)T

-hCGT(humanTchorionicTgonadotrophin):T

-uE3T(unconjugatedTestriol):T

,-TInhibin

FactorsTtoTtakeTintoTaccountTforTQuadTScreenT-TCorrectTAnswer-
GestationalTAge:TAsTthisTchangesTsoTdoesTexpectedTvaluesTofTeachTanalyte

Weight:TasTmaternalTweightTincreasesTsoTdoesTbloodTvolume.TDilutesTanalytes

Race:TDifferentTethnicTbackgroundsTcanTaffectedTexpectedTlevels
-Ti.e.TAfricanTAmericanTancestryTtendTtoThaveThigherTAFPTlevels

-DiabeticTstatus:TinsulinTdependentTdiabeticsTtendTtoThaveTlowerTAFP

EffectsTofTinaccurateTdatingTforTQuadTScreenT-TCorrectTAnswer--
OverestimateT(believeTpregnancyTisTfurtherTalong)TcanTleadTtoTfalseTpositiveTforTDown
Tsyndrome.T(OverestimateTbringsTyouTdown)


-
TUnderestimateT(reportedTtoTbeTearlierTthanTitTis)TleadsTtoTfalseTpositiveTforTNTD.TLon
donT(TheTunderTisTtheTtubes)

-TGenerallyTuseTfirstTtrimesterTultrasoundTforTdatingTratherTthanTLMP

IgMT(MostTrecent)

IgGT(ItTisTgone)T-TCorrectTAnswer-
YouTseeTIgMTbutTnotTIgGTisTthisTmoreTconcerningTforTrecentTinfectionsTdueTtoTmatern
alTinfection.

MemoryTdevice

EstriolTandThCGTlowTbutTAFPThighTearly

AllTlow:TLateT-TCorrectTAnswer-PatternsTforTrecentTandTolderTfetalTdemise

TrendsTofTAnalytesTinTSecondTTrimesterT-TCorrectTAnswer-AnalyteTTrend

hCGTDecreasesTasTGATincreases
InhibinTRemainsTStable
uE3TIncreasesTwithTGA
AFPTincreasesTwithTGA

PositiveTQuadTscreenTpatternTIncreasedTriskTforTDownTSyndromeT-TCorrectTAnswer-
HIT(Increased)TLOT(Decreased)

H:ThCG
I:TInhibin

, L:Testriol
O:TAFP

QuadTscreenTpositiveTT18TincreasedTriskT-TCorrectTAnswer-AFP:TLow
hCG:TLow
uE3:TLow
DIA:TN/A

PatternTofTQuadTscreenTwithTabnormalTplacentalTfunctioningT-TCorrectTAnswer-
AFP:THI
hCG:THigh
uE3:TLow
Inhibin:THigh

FirstTTrimesterTScreeningT-TCorrectTAnswer-
MaternalTserumTanalytesTandTultrasoundTareTusedTtoTadjustTaTwoman'sTaTprioriTriskTf
orTaneuploidy.TPerformedTinT1stTtrimesterTusuallyTbetweenT11-13Tweeks

FirstTTrimesterTScreeningTAnalytesT-TCorrectTAnswer-FreeTBeta-hCG
PAPP-A
AFP

AnalytesTareTmeasuresTandTthenTadjustedTforTgestationalTage,TmaternalTweightTandTr
ace

MeasuredTinTMoM-TmultiplesTofTmedian

FirstTTrimesterTScreenTUltrasoundTComponentsT-TCorrectTAnswer-
CrownTtoTRumpTlengthTmeasurement
NuchalTtranslucency
NasalTBone

AdvantagesTofTFirstTTriTScreeningToverTQuadT-TCorrectTAnswer-
IncreasedTsensitivityTforTT21TandTT18

IncludesTT13

RiskTassessmentTearlier

EliminatesTincorrectTdatingTissue

NuchalTtranslucencyT-TCorrectTAnswer-
aTcollectionTofTfluidTthatTextendsTbehindTtheTfetalTneckTandTalongTtheTspineTinTtheTfirs
tTtrimester