ecg

Question 1

functia inotropa

Answer 1

contractilitate

Question 2

functia batmotropa

Answer 2

excitabilitate

Question 3

functia cronotropa

Answer 3

ritmicitate

Question 4

functia dromotropa

Answer 4

conductibilitate

Question 5

functia lusitropa

Answer 5

automatism

Question 6

calea pref de cond AV

Answer 6

fasc ant bachman

Question 7

viteza cond la nivel cond AV

Answer 7

1000mm/s

Question 8

unde se distribuie reteaua purkinje

Answer 8

zona subendocardica
jum interna a miocard ventricular = zona muta miocardica

Question 9

secventa depolarizarii ventriculare

Answer 9

1.sept iv(port stg prima)
2.apex
3.jum int miocard vent
ultima= zona inelelor fibroase

Question 10

distributie topografica V1,V2

Answer 10

septal

Question 11

distributie topografica V3,V4

Answer 11

anterior

Question 12

distributie topografica D1,aVL,V5,V6

Answer 12

lateral

Question 13

distributie topografica D2,D3,aVF

Answer 13

inferior

Question 14

ritm regulat

Answer 14

distanta dintre 2 unde R succesive este constanta in timp si nu prezinta variatii
cel mai des folosita = D2
ritm atrial - PP
ritm vent - RR

Question 15

criterii ritm sinusal

Answer 15

polaritate - una P pozitiva in D2 si aVF, negativa in aVR
morfologie - morfologie ct in aceeasi derivatie
cronologie - dist PP ct
frecventa - unda P prezenta in fata QRS

Question 16

calcul FC

Answer 16

pt ritm regulat
= 1500/lung RR(mm)
=300/nr patrate mari RR
=1500/nr patrate mici RR
pt ritm neregulat
FC= nr complexe QRS pe interval de 6 sec x 10

Question 17

unda P

Answer 17

depolarizare atriala
negativa in aVR
durata - 0,08-0,1 sec
ampl - 0,25-0,3 mV
in plan orizontal - deflexiune negativa in V1 pt port lat, deflexiune pozitiva in V1 pt port ant
in plan orizontal pt V5 - o singura deflexiune pozitiva
in plan frontal - pt ritm sinusal, unda P mereu pozitiva

Question 18

segment PQ

Answer 18

intarzierea stiulului la niv jonctiunii AV
durata - 0,02-0,12 s
linie izoelectrica

Question 19

interval PR

Answer 19

timpul conducerii impulsului electric din NSA
=0,12-0,21 s

Question 20

complex QRS

Answer 20

depolarizare ventriculara
=0,08-0,10 s
orientare fiziologica intre 30 si 60 garde
se accepta 0 grade - obezi , 90 grade la persoane inalte si slabe

Question 21

aspect QRS in derivatii precordiale

Answer 21

rS in V1,V2,V3
RS in V3,V4
Rs in V5,V6

Question 22

unda Q e prezenta numai in

Answer 22

derivatiile stangi
D1,aVL,V5,V6
prezenta Q in celelalte = unda Q patologica

Question 23

segment ST

Answer 23

repolarizare lenta ventriculara
normal - isoelectrica

Question 24

unda T

Answer 24

repolarizare rapida ventriculara

Question 25

interval QT

Answer 25

sistola electrica ventriculara

Question 26

QT patologic

Answer 26

in diseletrolitemii
creste in hipocalcemii si hiperpotasemii
scade in hipopotasemii

Question 27

unda U

Answer 27

postpotentiale ventriculare
patologic creste in hipertrofii ventriculare, hipopotasemii
poate deveni negativa in leziuni coronariene ischemice