ECGs Made Easy 6th Edition Test Bank | Barbara Aehlert Practice Questions & Answers

TESTBANK j




ECGs MADE EASY
j j




6TH EDITION | AEHLERT
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TEST BANK j

,ECGsjMadejEasyj6thjEditionjbyjBarbarajAehlertjTestjBank
TablejofjContents:

Chapterj1.jAnatomyj&jPhysiology

Chapterj2.jBasicjElectrophysiology

Chapterj3.jSinusjMechanisms

Chapterj4.jAtrialjRhythms

Chapterj5.jJunctionaljRhythms

Chapterj6.jVentricularjRhythms

Chapterj7.jAtrioventricularjBlocks

Chapterj8.jPacemakerjRhythms

Chapterj9.jIntroductionjtojthej12-LeadjECG

Chapterj10.jPost-Test

,Chapterj01:jAnatomyjandjPhysiologyjA
ehlert:jECGsjMadejEasy,j6thjEdition


MULTIPLEjCHOICE

1. Thejapexjofjthejheartjisjformedjbyjthe .
a. tipjofjthejleftjventricle
b. tipjofjthejrightjatrium
c. rightjatriumjandjrightjventricle
d. leftjatriumjandjleftjventricle
ANS:j A
Thejheart’sjapex,jorjlowerjportion,jisjformedjbyjthejtipjofjthejleftjventricle.jThejapexjliesjjustjabov
ejthejdiaphragm,jbetweenjthejfifthjandjsixthjribs,jinjthejmidclavicularjline.

OBJ:j Identifyjthejsurfacesjofjthejheart.

2. Thejleftjatriumjreceivesjbloodjfromjthe .
a. pulmonaryjveins
b. aorta
c. pulmonaryjarteries
d. inferiorjvenajcava
ANS:j A
Thejleftjatriumjreceivesjfreshlyjoxygenatedjbloodjfromjthejlungsjviajthejrightjandjleftjpulmonaryj
veins.

OBJ:j Identifyjandjdescribejthejchambersjofjthejheartjandjthejvesselsjthatjenterjorjleavejeach.

3. Thejanteriorjsurfacejofjthejheartjconsistsjprimarilyjofjthe .
a. leftjatrium
b. rightjatrium
c. leftjventricle
d. rightjventricle
ANS:j D
Thejfrontj(anterior)jsurfacejofjthejheartjliesjbehindjthejsternumjandjcostaljcartilages.jItjisjformedj
byjportionsjofjthejrightjatriumjandjthejleftjandjrightjventricles.jHowever,jbecausejthejheartjisjtilte
djslightlyjtowardjthejleftjinjthejchest,jthejrightjventriclejisjthejareajofjthejheartjthatjliesjmostjdirectl
yjbehindjthejsternum.

OBJ:j Identifyjthejsurfacesjofjthejheart.

4. Bloodjpressurejisjdeterminedjby multipliedjby .
a. strokejvolume;jheartjrate
b. heartjrate;jcardiacjoutput
c. cardiacjoutput;jperipheraljvascularjresistance
d. strokejvolume;jperipheraljvascularjresistance
ANS:j C
Bloodjpressurejisjequaljtojcardiacjoutputjmultipliedjbyjperipheraljvascularjresistance.

, OBJ:j Identifyjandjexplainjthejcomponentsjofjbloodjpressurejandjcardiacjoutput.

5. Thejrightjatriumjreceivesjvenousjbloodjfromjthejhead,jneck,jandjthoraxjviajthe
,jfromjthejremainderjofjthejbodyjviajthe
,jandjfromjthejheartjviajthe .
a. coronaryjsinus;jsuperiorjvenajcava;jinferiorjvenajcava
b. superiorjvenajcava;jcoronaryjsinus;jinferiorjvenajcava
c. inferiorjvenajcava;jsuperiorjvenajcava;jcoronaryjsinus
d. superiorjvenajcava;jinferiorjvenajcava;jcoronaryjsinus
ANS:j D
Thejrightjatriumjreceivesjbloodjlowjinjoxygenjfromjthejsuperiorjvenajcava,jwhichjcarriesjblood
jfromjthejheadjandjupperjextremities;jthejinferiorjvenajcava,jwhichjcarriesjbloodjfromjthejlowerj
body;jandjthejcoronaryjsinus,jwhichjisjthejlargestjveinjthatjdrainsjthejheart.

OBJ:j Identifyjandjdescribejthejchambersjofjthejheartjandjthejvesselsjthatjenterjorjleavejeach.

6. Thejheartjisjdividedjinto chambersjbutjfunctionsjasja -sidedjpump.
a. two;jfour
b. three;jtwo
c. four;jtwo
d. four;jthree
ANS:j C
Thejheartjhasjfourjchambers:jtwojatriajandjtwojventricles.jThejrightjandjleftjsidesjofjthejheartjarejs
eparatedjbyjanjinternaljwalljofjconnectivejtissuejcalledjajseptum.jThejinteratrialjseptumjseparates
jthejrightjandjleftjatria.jThejinterventricularjseptumjseparatesjthejrightjandjleftjventricles.jThejsep
tajseparatejthejheartjintojtwojfunctionaljpumps.jThejrightjatriumjandjrightjventriclejmakejupjonej
pump.jThejleftjatriumjandjleftjventriclejmakejupjthejother.

OBJ:j Identifyjandjdescribejthejchambersjofjthejheartjandjthejvesselsjthatjenterjorjleavejeach.

7. Stimulationjofjalpha1jreceptorsjresultsjin .
a. increasedjheartjrate
b. peripheraljvasoconstriction
c. constrictionjofjbronchialjsmoothjmuscle
d. increasedjforcejofjmyocardialjcontraction
ANS:j B
Alpha1jreceptorsjarejfoundjinjthejeyes,jbloodjvessels,jbladder,jandjmalejreproductivejorgans.jStimula
tionjofjalpha1jreceptorjsitesjresultsjinjconstriction.

OBJ:j Comparejandjcontrastjthejeffectsjofjsympatheticjandjparasympatheticjstimulationjofjthejheart.

8. Whichjsidejofjthejheartjisjajlow-pressurejsystemjthatjpumpsjvenousjbloodjtojthejlungs?
a. Left
b. Right
ANS:j B
Thejjobjofjthejrightjsidejofjthejheartjisjtojpumpjunoxygenatedjbloodjtojandjthroughjthejlungsjtojth
ejleftjsidejofjthejheart.jThisjisjcalledjthejpulmonaryjcirculation.jThejrightjsidejofjthejheartjisjajlow-
pressurejsystem.