Ekg

Front 1

right & left sequential atrial depolarizatin & contraction are indicated by

Back 1

p wave

Front 2

r & l ventricular depolarization & contraction (atrial repolarization occurs during this time but is not seen; L ventricle dominates this complex due to size)

Back 2

QRS complex

Front 3

ventricular repolarization

Back 3

T wave

Front 4

time from the start of atrial depolarization to start of ventricular depolarization

Back 4

PR interval

Front 5

end of ventricular depolarization to end of ventricular repoliarization

Back 5

ST segment

Front 6

time from beginning of ventricular depolarization to end of ventricular repolarization

Back 6

QT interval

Front 7

PR interval should be within _____ ______ box. This is ____ seconds.

Back 7

1 large --0.2

Front 8

If PR interval is long think _______

Back 8

primary AV block

Front 9

QRS complex is normally within ____ _______ boxes. This is ______ seconds.

Back 9

2.5 small --0.1

Front 10

If QRS is greater than 0.1 seconds think _______, ________, ________, _______

Back 10

bundle branch block, Premature Ventricular Contractions, Ventricular pacing, Wolf Parkinson White syndrome

Front 11

QT interval is normally within ____ _____ boxes. This is _____ seconds.

Back 11

2 large - 0.4

Front 12

A prolonged QT encompasses more than half the distance between the _____ interval.

Back 12

R-R

Front 13

If QT is prolonged consider LOng QT syndrome caused by _____, ________, _______

Back 13

drugs (antiarrhythmics, phenothiazines)
electrolyte abnormalities
Congenital Heart Disease

Front 14

On ekg paper each small square equates to ______ seconds

Back 14

0.04

Front 15

On ekg paper each large square equates to ______ seconds

Back 15

0.2

Front 16

in 1 second _____ _____ squares are traversed

Back 16

5 large

Front 17

I, aVL, V5, V6 are _____ leads

Back 17

lateral

Front 18

II, III, aVF are ______ leads

Back 18

inferior

Front 19

V1, V2 are _______ leads(also show changes in posterior of heart)

Back 19

septal

Front 20

(V1, V2) V3, V4 are ______ leads

Back 20

anterior

Front 21

V1, V2 (septal) & usually II, III, aVF (inferior) depends on dominance pattern of coranary circulation

Back 21

right coranary artery

Front 22

V1-V4 (anterior

Back 22

LAD

Front 23

I, aVL, V5, V6 (lateral)

Back 23

circumflex

Front 24

If changes ccur only in V1, V2 = ______

Back 24

septal

Front 25

If changes occur only in V3-4 =_______

Back 25

anterior

Front 26

If change occur in V1-V4 = ____________

Back 26

anterior septal

Front 27

V1, V2 is _____ view of ________

Back 27

septal
RCA

Front 28

V1,V2,V3,V4 is _____ view of ________

Back 28

anterior
LAD

Front 29

I, aVL, V5, V6 is _____ view of ________

Back 29

lateral
circumflex

Front 30

II, III, aVF is _____ view of ________

Back 30

inferior
RCA or LCA (depending on dominance [R is more common]

Front 31

I, II, II are ________ leads, they form _______ triangle around the heart

Back 31

bipolar
einthoven's

Front 32

aVR, aVL, aVF are _______, ______ starting from the heart and moving outward

Back 32

augmented, unipolar

Front 33

V1-V6 are ________ and give view of heart moving anteriorly and posteriory.

Back 33

precordial or chest

Front 34

the direction of mean electrical vector, representing the average directionof current flow. It is defined in the frontal plane only

Back 34

axis

Front 35

To determine the axis, find the lead in which the QRS is most nearly ______. The QRS axis must lie approximately _______ to that axis.

Back 35

biphasic
perpindicular

Front 36

Quick extimate of axis:
normal EKG:
Lead I is _____
Lead AVF is _____

Back 36

+,+

Front 37

Quick extimate of axis:
Left deviation EKG:
Lead I is _____
Lead AVF is _____

Back 37

+,-

Front 38

Quick extimate of axis:
Right deviation EKG:
Lead I is _____
Lead AVF is _____

Back 38

-,+

Front 39

Quick extimate of axis:
Extreme Right deviation EKG:
Lead I is _____
Lead AVF is _____

Back 39

-,-