ECMO Specialist Test Review With Correct Rationales

ECMO Specialist Test Review With Correct




Who cis cthe c'father' cof cECMO? c- cCORRECT cANS✔✔Robert cBartlett

First csuccessful cneonate cECMO crun? c- cCORRECT cANS✔✔Esperanza cin c1975

How cdoes cgas cexchange coccur cat cthe calveoli cand cpulmonary ccapillaries? c- cCORRECT cANS✔
cconcentration cto can carea cof clower cconcentration)


How cfast cdoes cgas cexchange coccur cat cthe calveoli cand cpulmonary ccapillaries? c- cCORRECT cA

What care cthe c4 ccomponents cof coxygen cdelivery? c- cCORRECT cANS✔✔1. cCardiac cOutput
2. cHemoglobin cConcentration
3. cHemoglobin cSaturation
4. cDissolved cOxygen

Ideal cDO2/VO2 cRatio? c- cCORRECT cANS✔✔4:1

What cis cthe cmetabolic crate cof cthe cheart? c- cCORRECT cANS✔✔The cheart cconsumes c70-75% c

What cdetermines cVO2? c- cCORRECT cANS✔✔1. cCell cMetabolism
2. cMass cand cActivity
3. cThyroid, cHypothalamus, cand cCatecholamines

Facts cabout cSVO2: c- cCORRECT cANS✔✔- cMeasures cglobal cO2 cconsumption cand cutilization
- cNormal cis c65-75%
- cSvO2 c= cDO2-VO2
- c<50% cwill clead cto canaerobic cmetabolism c(lactic cacid cproduction)

Oxygenation cis ccontrolled cby: c(gas cexchange cwith cmembrane clung) c- cCORRECT cANS✔✔- cTh
cinlet cblood c(Starting cCaO2)
- cBlood cFlow
- cSurface cArea
- cRated cflow c(tested cin clab)

CO2 cis ccontrolled cby: c(gas cexchange cwith cmembrane clung) c- cCORRECT cANS✔✔- cSweep cga

, SvO2 cForumla c- cCORRECT cANS✔✔DO2-VO2

DO2:VO2 cRatio c- cCORRECT cANS✔✔DO2/VO2

Calculating cCO cin cVV cECMO c- cCORRECT cANS✔✔ECMO cFlow cx c[(S1-S2)/(S3-S2)]
No cdecimals
S1 c=ECMO cArterial cSat c(Should cbe c100%)
S2 c=Patient cVenous cSat
S3 c=Patient cArterial cSat

How cdo cwe ccontrol cDO2 con cECMO? c- cCORRECT cANS✔✔-ECMO cFlow
-Hgb
-ECMO cSat

Most cused ccannula csizes c(unless cBSA c<1.6) c- cCORRECT cANS✔✔Venous: c25fr c(5-6 cL/min)
Arterial: c19fr c(4.5-5.5 cL/min)
Crescent: c32fr c(17F creturn)

Arterial cPressure cDrop c- cCORRECT cANS✔✔-Goal cto cbe c<100mmHg c@ cmax cexpected cflow
- cEx. cNeed cto cflow c5l/min? cNeed c20fr creturn ccannula

Ideal cECMO cFlow cFormula: c- cCORRECT cANS✔✔BSA cx c2.2 c(the cdesired cCL con c4R)

Centrifugal cPump cBasics c- cCORRECT cANS✔✔- cPreload cdependent
- cAfterload csensitive c
- cNon-occlusive
- cWork cby cvortex ceffect
- cMagnetically ccoupled cwhich cgenerates cpressure cdifferential c
- cLow cpressure ccenter, chigh cpressure czone con cthe csides
- cNegative cpressure cinlet, cpositive cpressure coutlet
- cOutlet c@ c6 co'clock
- cSoft cline ccoating c(no cheparin, cno calbumin)

Centrimag cSystem c- cCORRECT cANS✔✔- cMagnetic clevitated cimpeller c(no cbearing)
- cMax cflow c10 cL/min
- cBattery cLife c60 cmin
- c31 cmL cprime cvolume
- cNO cHAND cCRANK c(Must chave csecond cconsole cin croom)
- cEXPENSIVE

Rotaflow cSystem c- cCORRECT cANS✔✔- cMagnetic cStabilized cRotor cwith cSapphire cBearing
- cMax cflow c10 cL/min
- c32 cmL cprime cvolume
- cBattery cLife c90 cminutes
- cHandcrank
- cMaquet cFlow cChannel
- cLaminar cblood cflow c(minimal cturbulence) c> creduced cblood ctrauma

Cardiohelp cSystem c- cCORRECT cANS✔✔- cCombined cpump cand coxygenator
- cPressure cmonitoring
- cEXPENSIVE
- cHand ccrank

Oxygenator cBasics: c- cCORRECT cANS✔✔- cPolymethlypentene cOxygenator