RELIAS - FETAL HEART MONITORING QUESTIONS
AND ANSWERS GRADED A+
uterine ccblood ccsupply cc- cc- ccuterine ccarteries ccdeliver ccoxygenated ccblood ccto ccspiral ccarteries ccwhich
ccbring ccoxygen ccrich ccblood ccto ccintervillous ccspace ccof ccplacenta ccthat cchas ccfetal cccapillaries
- ccfetal cccapillaries cccarry ccthe ccO2 ccrich ccblood ccto ccumbilical ccVEIN ccthat ccgoes ccto ccfetus
-in cccontrast, ccthe ccumbilical ccARTERIES ccreturn ccwaste ccproducts ccto ccthat ccintervillous ccspace ccthat ccgo
ccinto ccmother's ccvenous ccsystem
Potential ccissues ccthat ccnegatively ccaffect ccfetal ccoxygenation cc- cc*Maternal ccOxygenation:* ccasthma,
cchyper- ccor cchypo- ccventilation
*Maternal ccCirculation:* ccdecreased ccmaternal cccardiac ccoutput, cchypotension, ccdecreased ccHgb
*Placental ccO2 ccand ccCO2 ccExchange:* ccpostterm, ccabruption, ccHTN, cchypotension, ccuterine cctachysystole
*Fetal cccirculation:* cccord cccompression ccor ccocclusion
Fetal cchypoxemia cc- cc- cccan ccoccur ccd/t ccreduced ccfetal ccO2 ccreserves, ccexcessive ccuterine ccactivity, ccor
ccreduced ccuteroplacental ccblood ccflow
- ccworsening ccfetal cchypoxemia cccan cclead ccto ccabnormal ccFHR ccpatterns, ccmostly ccminimal ccor ccabsent
ccvariability ccfrom ccacidemia
(1) cchypoxemia ccvs. cc(2) cchypoxia cc- cc1 cc- ccreduce ccO2 ccin ccblood
2 cc- ccreduced ccO2 ccdelivery ccat cctissue cclevel
, Fetal ccanaerobic ccmetabolism cc- cc- ccoccurs ccwhen cclong ccterm ccO2 ccdelivery ccis ccinsufficient ccto ccmeet
cccellular ccneeds ccof cctissues
- ccresults ccin ccproduction ccof cclactic ccacid ccand ccother ccnoncarbonic ccacids
- ccACIDOSIS ccis ccthe ccpresence ccof ccexcessive ccacids ccin cctissues
acidosis cc- ccpH ccbelow cc7.35
pH ccis cclow
(acidosis ccis ccthe ccprocess ccthat ccleads ccto cclow ccblood ccpH, ccor ccacidemia)
alkalosis cc- ccpH ccabove cc7.45
pH ccis cchigh
buffers cc- cc- cchelp ccmaintain ccacid ccbase cchomeostasis
- cc2 ccmajor ccfetal ccbuffers ccare ccplasma ccbicarbonate ccand cchgb
base ccexcess ccand ccbase ccdeficit cc- cc- ccbase ccdeficit ccis ccexpressed ccas cca ccpositive ccnumber
- ccbase ccexcess ccis ccexpressed ccas cca ccnegative ccnumber
~ ccthey ccare ccequivalent ccand ccterms ccare ccused ccinterchangeably cc~
fetal ccacidosis cc- cc- ccwhen ccO2 ccis ccdecreased ccto ccfetus, cctissue cchypoxia ccresults ccin ccacidosis, ccwhich
ccthen ccshows cca ccdrop ccin ccpH, cca ccloss ccof ccbicarb, ccand ccincrease ccin ccbase ccdeficit
AND ANSWERS GRADED A+
uterine ccblood ccsupply cc- cc- ccuterine ccarteries ccdeliver ccoxygenated ccblood ccto ccspiral ccarteries ccwhich
ccbring ccoxygen ccrich ccblood ccto ccintervillous ccspace ccof ccplacenta ccthat cchas ccfetal cccapillaries
- ccfetal cccapillaries cccarry ccthe ccO2 ccrich ccblood ccto ccumbilical ccVEIN ccthat ccgoes ccto ccfetus
-in cccontrast, ccthe ccumbilical ccARTERIES ccreturn ccwaste ccproducts ccto ccthat ccintervillous ccspace ccthat ccgo
ccinto ccmother's ccvenous ccsystem
Potential ccissues ccthat ccnegatively ccaffect ccfetal ccoxygenation cc- cc*Maternal ccOxygenation:* ccasthma,
cchyper- ccor cchypo- ccventilation
*Maternal ccCirculation:* ccdecreased ccmaternal cccardiac ccoutput, cchypotension, ccdecreased ccHgb
*Placental ccO2 ccand ccCO2 ccExchange:* ccpostterm, ccabruption, ccHTN, cchypotension, ccuterine cctachysystole
*Fetal cccirculation:* cccord cccompression ccor ccocclusion
Fetal cchypoxemia cc- cc- cccan ccoccur ccd/t ccreduced ccfetal ccO2 ccreserves, ccexcessive ccuterine ccactivity, ccor
ccreduced ccuteroplacental ccblood ccflow
- ccworsening ccfetal cchypoxemia cccan cclead ccto ccabnormal ccFHR ccpatterns, ccmostly ccminimal ccor ccabsent
ccvariability ccfrom ccacidemia
(1) cchypoxemia ccvs. cc(2) cchypoxia cc- cc1 cc- ccreduce ccO2 ccin ccblood
2 cc- ccreduced ccO2 ccdelivery ccat cctissue cclevel
, Fetal ccanaerobic ccmetabolism cc- cc- ccoccurs ccwhen cclong ccterm ccO2 ccdelivery ccis ccinsufficient ccto ccmeet
cccellular ccneeds ccof cctissues
- ccresults ccin ccproduction ccof cclactic ccacid ccand ccother ccnoncarbonic ccacids
- ccACIDOSIS ccis ccthe ccpresence ccof ccexcessive ccacids ccin cctissues
acidosis cc- ccpH ccbelow cc7.35
pH ccis cclow
(acidosis ccis ccthe ccprocess ccthat ccleads ccto cclow ccblood ccpH, ccor ccacidemia)
alkalosis cc- ccpH ccabove cc7.45
pH ccis cchigh
buffers cc- cc- cchelp ccmaintain ccacid ccbase cchomeostasis
- cc2 ccmajor ccfetal ccbuffers ccare ccplasma ccbicarbonate ccand cchgb
base ccexcess ccand ccbase ccdeficit cc- cc- ccbase ccdeficit ccis ccexpressed ccas cca ccpositive ccnumber
- ccbase ccexcess ccis ccexpressed ccas cca ccnegative ccnumber
~ ccthey ccare ccequivalent ccand ccterms ccare ccused ccinterchangeably cc~
fetal ccacidosis cc- cc- ccwhen ccO2 ccis ccdecreased ccto ccfetus, cctissue cchypoxia ccresults ccin ccacidosis, ccwhich
ccthen ccshows cca ccdrop ccin ccpH, cca ccloss ccof ccbicarb, ccand ccincrease ccin ccbase ccdeficit
