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CEFM Exam Questions with 100% Correct Answers | Latest Version (2024/2025) Expert Verified
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CEFM Exam Questions with 100% Correct Answers | Latest Version (2024/2025) Expert Verified
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CEFM Exam Questions with 100% CorrectAnswers | Latest Version (2024/2025) Expert
Verified
EFMiisiusedito...i-iCorrectiAnswer-
assessitheiadequacyiofifetalioxygenationiwithidualiaimsiof:i
(1)i*confirminginormalioxygenation*isoithatilaboricanibeicontinuedisafe
ly
(2)i*preventingifetaliinjury*ithatimayiresultifromiinterruptioniofinormali
fetalioxygenationiduringilabor
Trueiorifalse:icontinuousiEFMiduringilaborihasibeeniassociatediwithihigh
ericesareaniratesiasiopposeditoiIAiinihealthyilow-riskiwomeni-
iCorrectiAnswer-•iTrue
•iThereiisinoidefinitiveievidenceithatiuseiofiintrapartumiEFMileadsitoisig
nificantireductioniinineonatalineurologicimorbidity
Physiologicalipathwayiofifetalioxygenationi-iCorrectiAnswer-
Oxygenipathway:iexternalienvironmenti-iCorrectiAnswer-
*PO2*i(partialipressureiofioxygen)i*declinesiasiitimoves*ifromienviron
menti*toifetus*
,Oxygenipathway:imaternalilungsi-iCorrectiAnswer-
•iCarriesioxygenatedi*airifromiexternalienvironmentiintoialveoli*
•iFromialveoli,ioxygeni*diffuses*iacrossithinibarrieri*intoipulmonaryica
pillaryiblood*
•i*Interruption*iofiO2itransferi*fromienvironmentitoialveoliicaniresultif
romiairwayiobstructionioriCNSidepression*i(ex:iasthma,iaspiration,iapn
ea,inarcotics,imagnesium)
•i*Interruptions*iofiO2itransferi*fromialveoliitoipulmonaryicapillaryiblo
odicanibeicausedibyiventilation-
perfusionimismatch,ipulmonaryiembolism,ipneumonia,iasthma,iatelect
asis,ioriadultirespiratoryidistressisyndrome*
Oxygenipathway:imaternalibloodi-iCorrectiAnswer-
•iAfteri*diffusingifromipulmonaryialveoli*iintoimaternaliblood,iapproxi
*98%iofiO2icombinesiwiHbgiinimaternaliRBCs*i(remainingi2%idissolvesii
ntoiblood)
•i*AmntiofiO2ibounditoiHgbidependsidirectlyioniPO2*iasiillustratedibyit
heioxyhemoglobinidissociationicurve
Oxyhemoglobinidissociationicurvei-iCorrectiAnswer-
•iRelationshipibetweenihemoglobinisaturationiandiPo2
•iInigeneral,i*tendencyiforiHgbitoireleaseiO2iisiincreasedibyifactorsithati
reflectianiincreasedineediforioxygen*i(cellularimetabolism)
,Oxygenipathway:imaternalihearti-iCorrectiAnswer-
•iMaternalipulmonaryi*veinsicarryioxygenatediblooditoitheiheart*iandi
pumpedi*throughiaortaiforisystemicidistribution*
•iDependentioninormalicardiacifunction,ireflectedibyicardiacioutputi(HR
ixiSV)
•i*Interruption*iofiO2itoifetusicanibeicausedibyi*arrhythmias,ihypovole
mia,icompressioniofiinferiorivenaicava,iimpairedicontractilityi(heartidz,i
diabetes,icardiomyopathy,iCHF,iHTN),iandistructuraliabnormalities*
•i*MosticommoniiniOBi=ihypovolemia*,icompressioniofiinferiorivenaica
vaibyigravidiuterus
Oxygenipathway:imaternalivasculaturei-iCorrectiAnswer-
Aortai→icommoni&iinternaliiliaciarteriesi→ianterioridivisioniofiinternalii
liaciarteryi→iuterineiarteryi→iarcuateiarteriesi→iradialiarteriesi→ispirali
arteriesi→ienteriintervillousispaceiofiplacenta
•i*Interruption*icanioccuriw/i*hypotn*ifollowingiregionalianesthesia,ih
ypovolemia,iimpairedivenousireturn,iimpairedicardiacioutput,iorimeds
•i*Interruption*icanioccuriw/i*vasoconstriction*iiniresponseitoiendoge
nousivasoconstrictorsiorimedications
•i*Conditionsiassociatediwithichronicivasculopathy*i-iCHTN,ilong-
standingidiabetes,icollagenivascularidz,ithyroididz,iandirenalidz
•i*Pre-
e*iassociatediwiabnormalivasculariremodelingiandicaniimpedeiperfusio
n
•iTransientihypotensionimosticommon
, Oxygenipathway:iuterusi-iCorrectiAnswer-
•iArcuate,iradial,iandispiraliarteriesitraverseimusculariwalliofiuterus
•i*Interruption*iofiO2itransfericommonlyi*fromictxithaticompressimate
rnalibloodiflowiin/outiofiintervillousispaceiofiplacenta*i-
iexcessiveiuterineiactivity,iuterineistimulantsi(prostaglandins,ioxytocin)
Oxygenipathway:iplacentai-iCorrectiAnswer-
•iFacilitatesi*exchangeiofigases,inutrients,iwastes,iandiotherimolecules
*ibetweenimaternalibloodiinitheiintervillousispaceiandifetalibloodiinithei
villousicapillaries
•iO2i*interruptionsi-
iabruption,ivasaiprevia,ifetomaternalihemorrhage,iplacentaliinfarction,i
placentaliinfection*
Maternalisideivsifetalisideiofiplacentai-iCorrectiAnswer-
•i*Maternaliside*i-
iO2iexitsispiraliarteriesientersiintervillousispaceiandisurroundichorionici
villi
•i*Fetaliside*i-
ipairediumbilicaliarteriesicarryibloodifromifetusithroughitheiumbilicalico
rditoitheiplacenta
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