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Cardiovascular > CVS physiology 3 - ecg > Flashcards

CVS physiology 3 - ecg Flashcards

1
Q

what is the sll 1 lead

A

right rm to left arm

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2
Q

what is sll2 lead

A

right arm to left leg

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3
Q

what is the sll3 lead

A

left arm to left leg

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4
Q

what events are transmitted well to an ecg

A

fast events

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5
Q

what evens are not tranmited wiell

A

slower

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6
Q

what direction does a wave approaching depolorization have

A

upwards

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7
Q

what charge is the lead in the left arm and the right arm for sll1

A

left arm - postive
right arm negativ

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8
Q

what cahr is in the righ arm and left leg for sll2

A

right arm negative,
left leg postive

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9
Q

what charge is in the left leg and left arm for sll3

A

left leg - positive
left arm - negative

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10
Q

what will be seen for a depoloari wave from the right arm to the left leg, relative to the right arm

A

postive

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11
Q

what will be se for a depolarion wave from the left left to teh right arm

A

negative

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12
Q

what will we see if ther is a wave of repoloriastion approcting the left leg from the right arm, acoridng to teh righ arm

A

negative

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13
Q

what will we see if tehr is a repolarion wave coming form the left leg to the righ arm acoridng to th right arm

A

postive

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14
Q

what is the pr interval

A

disance bwetwen start of p wave and start of qrs (incudles p wave, does not include qrs(

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15
Q

what is the qt interval

A

disatnce form teh start of the qrs to the end of the t wave ( includes qrs wave and t wave)

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16
Q

what is the pr segment

A

distance from the distance btween p wave and qrs complex

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17
Q

what is an st segment

A

distance betwween s and t wave, non includive

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18
Q

what is the pr interval tell us

A

time from artial depolar to venticl depolation

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19
Q

what is a the normal time for a pr interval

A

0.12 to 0.2 seconds

20
Q

what is the qrs tell us

A

time for the ventil to depolarise

21
Q

What is a norla time fora qrs

A

.08 secionds

22
Q

what is a qt interval

A

time for ventrilces to depolroisae and repoloreise

23
Q

what is a norml time for a qt interval

A

.42 secionds

24
Q

why can’t we see atrium repolorisation

A

as the qrs compelx happens at eh same time and is muce fater

25
Q

what is the 1st interval in teh qrs complex

A

depolorision from left to right

26
Q

what is the second interval in a qrs complex

A

the buk of the venticalr depoaring from the endocarial to the eopiacrdil surface

27
Q

what is the 3rs secometn of the qrs

A

the uper part of the intervar sepum depoalrises

28
Q

why si teh t wave positive

A

as the wave of depolation is postive scoring to the right arm as returns. the cells also have a large action potential

29
Q

why is the r wave bigger in sll11 than sll 1 or sll111

A

becuaes the main vecor of deolai isn in line caring to the axis

30
Q

what directin is the vector of depolaitio of sll1

A

to the left of the herat

31
Q

what direction of deplaion is sll2

A

to the bottom of the heart

32
Q

what direcion of depolati is sll3

A

to the right of the heart

33
Q

what direction is v1, postive or

A

negative

34
Q

what directino blimp is v6

A

pistive

35
Q

what precoreial chest leads does the depolation flip

A

v3/v4

36
Q

how to calipbraea a rytme strip

A

make sure the box is 0.2 secion

37
Q

what should a normal box be in a rymph stip

A

.2 seconds

38
Q

how many square shoul you measure to work you the heat rate in six seconds

A

30

39
Q

what is nomral pulse

A

60-100

40
Q

what is bradycardia

A

pulse below 60

41
Q

what is tachycardia

A

pulse above 100

42
Q

what is stemi

A

st segment eleaveted, means myocarial infration

43
Q

what is nstmei

A

non st segent elaved mi

44
Q

whihc is worse stemi or nstemi

A

stemi

45
Q
A

Cardiovascular (37 decks)

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