OB Exam 3 Practice questions and
answers
Your apregnant apatient ais ain aher afirst atrimester aand ais ascheduled afor aan aabdominal aultrasound. aWhen
aexplaining athe arationale afor aearly apregnancy aultrasound, athe abest aresponse ais: a
a. a"The atest awill ahelp ato adetermine athe ababy's aposition."
b. a"The atest awill ahelp ato adetermine ahow amany aweeks ayou aare apregnant."
c. a"The atest awill ahelp ato adetermine aif ayour ababy ais agrowing aappropriately."
d. a"The atest awill ahelp ato adetermine aif ayou ahave aa aboy aor agirl." a- aAnswer a- ab. aFetal agrowth aand asize aare
afairly aconsistent aduring athe afirst atrimester aand aare aa areliable aindicator aof athe aweeks aof agestation.
Your apregnant apatient ais ahaving amaternal aalpha-fetoprotein a(AFP) ascreening. aShe adoes anot aunderstand
ahow aa atest aon aher ablood acan aindicate aa abirth adefect ain athe afetus. aThe abest areply aby athe anurse ais:
a. a"We ahave adone athis atest afor aa along atime."
b. a"If ababies ahave aa aneural atube adefect, aalpha-fetoprotein aleaks aout aof athe afetus aand ais aabsorbed ainto
ayour ablood, acausing ayour alevel ato arise. aThis aserum ablood atest adetects athat arise."
c. a"Neural atube adefects aare aa agenetic aanomaly, aand awe aexamine athe aamount aof aalpha-fetoprotein ain
ayour aDNA."
d. a"If ababies ahave aa aneural atube adefect, athis aresults ain aa adecrease ain ayour alevel aof aalpha-fetoprotein." a-
aAnswer a- ab. aWhen aa aneural atube adefect ais apresent, aAFP ais aabsorbed ain athe amaternal acirculation,
aresulting ain aa arise ain athe amaternal aAFP alevel.
The aprimary acomplications aof aamniocentesis aare:
a. aDamage ato afetal aorgans
b. aPuncture aof aumbilical acord
c. aMaternal apain
d. aInfection a- aAnswer a- ad. aAmniocentesis ainvolves ainsertion aof aa aneedle ainto athe aamniotic asac, aand
ainfection ais athe aprimary acomplication.
Your apatient ais a34 aweeks apregnant aand aduring aa aregular aprenatal avisit atells ayou ashe adoes anot
aunderstand ahow ato ado a"kick acounts." aThe abest aresponse aby athe anurse awould abe ato aexplain:
a. a"Here ais aan ainformation asheet aon ahow ato ado akick acounts."
,b. a"It ais anot aimportant ato ado akick acounts abecause ayou ahave aa alow-risk apregnancy."
c. a"Fetal akick acounts aare anot aa areliable aindicator aof afetal awell-being ain athe athird atrimester."
d. a"Fetal amovements aare aan aindicator aof afetal awell-being. aYou ashould acount atwice aa aday, aand ayou
ashould afeel a10 afetal amovements ain a2 ahours." a- aAnswer a- ad. aThis aresponse aprovides athe apatient awith
ainformation aon ahow ato ado akick acounts aand athe arationale afor adoing akick acounts aand acriteria afor anormal
afetal amovement.
Your apatient ais aa a37-year-old apregnant awoman awho ais a5 aweeks apregnant aand ais aconsidering agenetic
atesting. aDuring ayour adiscussion, athe awoman aasks athe anurse awhat athe aadvantages aof achorionic avillus
asampling a(CVS) aare aover aamniocentesis. aThe abest aresponse ais:
a. a"You awill aneed aanesthesia afor aamniocentesis, abut anot afor aCVS."
b. a"CVS ais aa afaster aprocedure."
c. a"CVS aprovides amore adetailed ainformation athan aamniocentesis."
d. a"CVS acan abe adone aearlier ain ayour apregnancy, aand athe aresults aare aavailable amore aquickly." a- aAnswer
a- ad. aCVS acan abe adone aearlier ain agestation
The aclinic anurse ameets awith aRebecca, aa a30-year-old awoman awho ais aexperiencing aher afirst apregnancy.
aRebecca's aquadruple amarker ascreen aresult ais apositive aat a17 aweeks' agestation. aThe anurse aexplains athat
aRebecca aneeds aa areferral ato:
a. aA agenetics acounselor/specialist
b. aAn aobstetrician
c. aA agynecologist
d. aA asocial aworker a- aAnswer a- aa. aAll awomen ashould abe aoffered ascreening awith amaternal aserum
amarkers. aThe aTriple aMarker ascreen aand athe aQuadruple aMarker ascreen atest afor athe apresence aof aalpha-
fetoprotein a(AFP), aestradiol, ahuman achorionic agonadotropin a(hCG), aand aother amarkers. aThese atests
ascreen afor apotential aneural atube adefects, aDown asyndrome, aand aTrisomy a18. aIf athe ascreen ais apositive,
athe awoman ashould abe areferred ato aa agenetics aspecialist afor acounseling, aand afurther atesting, asuch aas
achorionic avillus asampling a(CVS) aor aamniocentesis, ashould abe aperformed.
A a37-year-old awoman awho ais a17 aweeks apregnant ahas ahad aan aamniocentesis. aBefore adischarge, athe
anurse ateaches athe awoman ato acall aher adoctor aif ashe aexperiences awhich aof athe afollowing aside aeffects?
a. aPain aat athe apuncture asite
b. aMacular arash aon athe aabdomen
c. aDecrease ain aurinary aoutput
d. aCramping aof athe auterus a- aAnswer a- ad. aThe awoman ashould areport aany auterine acramping. aAlthough
arare, aamniocentesis acould astimulate apreterm alabor.
, A alaboratory areport aindicates athe aL/S aratio a(lecithin/sphingomyelin) aresults afrom aan aamniocentesis aof aa
agravid apatient awith apreeclampsia aare a2:1. aThe anurse ainterprets athe aresult aas awhich aof athe afollowing?
a. aThe ababy's alung afields aare amature.
b. aThe amother ais ahigh arisk afor ahemorrhage.
c. aThe ababy's akidneys aare afunctioning apoorly.
d. aThe amother ais ahigh arisk afor aeclampsia. a- aAnswer a- aa. aAn aL/S aratio aof a2:1 ausually aindicates athat athe
afetal alungs aare amature.
A aclient aon a2 agm/hr aof amagnesium asulfate ahas adecreased adeep atendon areflexes. aIdentify athe apriority
anursing aassessment ato aensure aclient asafety.
a. aAssess auterine acontractions acontinuously.
b. aAssess afetal aheart arate acontinuously.
c. aAssess aurinary aoutput.
d. aAssess arespiratory arate. a- aAnswer a- ad. aRespiratory aeffort aand adeep atendon areflexes a(DTRs) aare
ainvoluntary, aand aa adecrease ain aDTRs acould aindicate athe arisk aof amagnesium asulfate atoxicity aand athe arisk
afor adecreased arespiratory aeffort.
A apregnant aclient awith aa ahistory aof amultiple asexual apartners ais aat ahighest arisk afor awhich aof athe
afollowing acomplications:
a. aPremature arupture aof amembranes
b. aGestational adiabetes
c. aEctopic apregnancy
d. aPregnancy-induced ahypertension a- aAnswer a- ac. aA ahistory aof amultiple asexual apartners aplaces athe
aclient aat aa ahigher arisk aof ahaving acontracted aa asexually atransmitted adisease athat acould ahave aascended
athe auterus ato athe afallopian atubes aand acaused afallopian atube ablockage, aplacing athe aclient aat ahigh arisk
afor aan aectopic apregnancy.
Identify athe ahallmark aof aplacenta aprevia athat adifferentiates ait afrom aabruptio aplacenta.
a. aSudden aonset aof apainless avaginal ableeding
b. aBoard-like aabdomen awith asevere apain
c. aSudden aonset aof abright ared avaginal ableeding
d. aSevere avaginal apain awith abright ared ableeding a- aAnswer a- aa. aWhen athe aplacenta aattaches ato athe
alower auterine asegment anear aor aover athe acervical aos, ableeding amay aoccur awithout athe aonset aof
acontractions aor apain.
Which aof athe afollowing aassessments awould aindicate ainstability ain athe aclient ahospitalized afor aplacenta
aprevia?
answers
Your apregnant apatient ais ain aher afirst atrimester aand ais ascheduled afor aan aabdominal aultrasound. aWhen
aexplaining athe arationale afor aearly apregnancy aultrasound, athe abest aresponse ais: a
a. a"The atest awill ahelp ato adetermine athe ababy's aposition."
b. a"The atest awill ahelp ato adetermine ahow amany aweeks ayou aare apregnant."
c. a"The atest awill ahelp ato adetermine aif ayour ababy ais agrowing aappropriately."
d. a"The atest awill ahelp ato adetermine aif ayou ahave aa aboy aor agirl." a- aAnswer a- ab. aFetal agrowth aand asize aare
afairly aconsistent aduring athe afirst atrimester aand aare aa areliable aindicator aof athe aweeks aof agestation.
Your apregnant apatient ais ahaving amaternal aalpha-fetoprotein a(AFP) ascreening. aShe adoes anot aunderstand
ahow aa atest aon aher ablood acan aindicate aa abirth adefect ain athe afetus. aThe abest areply aby athe anurse ais:
a. a"We ahave adone athis atest afor aa along atime."
b. a"If ababies ahave aa aneural atube adefect, aalpha-fetoprotein aleaks aout aof athe afetus aand ais aabsorbed ainto
ayour ablood, acausing ayour alevel ato arise. aThis aserum ablood atest adetects athat arise."
c. a"Neural atube adefects aare aa agenetic aanomaly, aand awe aexamine athe aamount aof aalpha-fetoprotein ain
ayour aDNA."
d. a"If ababies ahave aa aneural atube adefect, athis aresults ain aa adecrease ain ayour alevel aof aalpha-fetoprotein." a-
aAnswer a- ab. aWhen aa aneural atube adefect ais apresent, aAFP ais aabsorbed ain athe amaternal acirculation,
aresulting ain aa arise ain athe amaternal aAFP alevel.
The aprimary acomplications aof aamniocentesis aare:
a. aDamage ato afetal aorgans
b. aPuncture aof aumbilical acord
c. aMaternal apain
d. aInfection a- aAnswer a- ad. aAmniocentesis ainvolves ainsertion aof aa aneedle ainto athe aamniotic asac, aand
ainfection ais athe aprimary acomplication.
Your apatient ais a34 aweeks apregnant aand aduring aa aregular aprenatal avisit atells ayou ashe adoes anot
aunderstand ahow ato ado a"kick acounts." aThe abest aresponse aby athe anurse awould abe ato aexplain:
a. a"Here ais aan ainformation asheet aon ahow ato ado akick acounts."
,b. a"It ais anot aimportant ato ado akick acounts abecause ayou ahave aa alow-risk apregnancy."
c. a"Fetal akick acounts aare anot aa areliable aindicator aof afetal awell-being ain athe athird atrimester."
d. a"Fetal amovements aare aan aindicator aof afetal awell-being. aYou ashould acount atwice aa aday, aand ayou
ashould afeel a10 afetal amovements ain a2 ahours." a- aAnswer a- ad. aThis aresponse aprovides athe apatient awith
ainformation aon ahow ato ado akick acounts aand athe arationale afor adoing akick acounts aand acriteria afor anormal
afetal amovement.
Your apatient ais aa a37-year-old apregnant awoman awho ais a5 aweeks apregnant aand ais aconsidering agenetic
atesting. aDuring ayour adiscussion, athe awoman aasks athe anurse awhat athe aadvantages aof achorionic avillus
asampling a(CVS) aare aover aamniocentesis. aThe abest aresponse ais:
a. a"You awill aneed aanesthesia afor aamniocentesis, abut anot afor aCVS."
b. a"CVS ais aa afaster aprocedure."
c. a"CVS aprovides amore adetailed ainformation athan aamniocentesis."
d. a"CVS acan abe adone aearlier ain ayour apregnancy, aand athe aresults aare aavailable amore aquickly." a- aAnswer
a- ad. aCVS acan abe adone aearlier ain agestation
The aclinic anurse ameets awith aRebecca, aa a30-year-old awoman awho ais aexperiencing aher afirst apregnancy.
aRebecca's aquadruple amarker ascreen aresult ais apositive aat a17 aweeks' agestation. aThe anurse aexplains athat
aRebecca aneeds aa areferral ato:
a. aA agenetics acounselor/specialist
b. aAn aobstetrician
c. aA agynecologist
d. aA asocial aworker a- aAnswer a- aa. aAll awomen ashould abe aoffered ascreening awith amaternal aserum
amarkers. aThe aTriple aMarker ascreen aand athe aQuadruple aMarker ascreen atest afor athe apresence aof aalpha-
fetoprotein a(AFP), aestradiol, ahuman achorionic agonadotropin a(hCG), aand aother amarkers. aThese atests
ascreen afor apotential aneural atube adefects, aDown asyndrome, aand aTrisomy a18. aIf athe ascreen ais apositive,
athe awoman ashould abe areferred ato aa agenetics aspecialist afor acounseling, aand afurther atesting, asuch aas
achorionic avillus asampling a(CVS) aor aamniocentesis, ashould abe aperformed.
A a37-year-old awoman awho ais a17 aweeks apregnant ahas ahad aan aamniocentesis. aBefore adischarge, athe
anurse ateaches athe awoman ato acall aher adoctor aif ashe aexperiences awhich aof athe afollowing aside aeffects?
a. aPain aat athe apuncture asite
b. aMacular arash aon athe aabdomen
c. aDecrease ain aurinary aoutput
d. aCramping aof athe auterus a- aAnswer a- ad. aThe awoman ashould areport aany auterine acramping. aAlthough
arare, aamniocentesis acould astimulate apreterm alabor.
, A alaboratory areport aindicates athe aL/S aratio a(lecithin/sphingomyelin) aresults afrom aan aamniocentesis aof aa
agravid apatient awith apreeclampsia aare a2:1. aThe anurse ainterprets athe aresult aas awhich aof athe afollowing?
a. aThe ababy's alung afields aare amature.
b. aThe amother ais ahigh arisk afor ahemorrhage.
c. aThe ababy's akidneys aare afunctioning apoorly.
d. aThe amother ais ahigh arisk afor aeclampsia. a- aAnswer a- aa. aAn aL/S aratio aof a2:1 ausually aindicates athat athe
afetal alungs aare amature.
A aclient aon a2 agm/hr aof amagnesium asulfate ahas adecreased adeep atendon areflexes. aIdentify athe apriority
anursing aassessment ato aensure aclient asafety.
a. aAssess auterine acontractions acontinuously.
b. aAssess afetal aheart arate acontinuously.
c. aAssess aurinary aoutput.
d. aAssess arespiratory arate. a- aAnswer a- ad. aRespiratory aeffort aand adeep atendon areflexes a(DTRs) aare
ainvoluntary, aand aa adecrease ain aDTRs acould aindicate athe arisk aof amagnesium asulfate atoxicity aand athe arisk
afor adecreased arespiratory aeffort.
A apregnant aclient awith aa ahistory aof amultiple asexual apartners ais aat ahighest arisk afor awhich aof athe
afollowing acomplications:
a. aPremature arupture aof amembranes
b. aGestational adiabetes
c. aEctopic apregnancy
d. aPregnancy-induced ahypertension a- aAnswer a- ac. aA ahistory aof amultiple asexual apartners aplaces athe
aclient aat aa ahigher arisk aof ahaving acontracted aa asexually atransmitted adisease athat acould ahave aascended
athe auterus ato athe afallopian atubes aand acaused afallopian atube ablockage, aplacing athe aclient aat ahigh arisk
afor aan aectopic apregnancy.
Identify athe ahallmark aof aplacenta aprevia athat adifferentiates ait afrom aabruptio aplacenta.
a. aSudden aonset aof apainless avaginal ableeding
b. aBoard-like aabdomen awith asevere apain
c. aSudden aonset aof abright ared avaginal ableeding
d. aSevere avaginal apain awith abright ared ableeding a- aAnswer a- aa. aWhen athe aplacenta aattaches ato athe
alower auterine asegment anear aor aover athe acervical aos, ableeding amay aoccur awithout athe aonset aof
acontractions aor apain.
Which aof athe afollowing aassessments awould aindicate ainstability ain athe aclient ahospitalized afor aplacenta
aprevia?
