ECG

Question 1

4 Steps to check EKG

Answer 1

1. Speed
2. QRS Wide or narrow
3. P wave
4. Regular or Irregular

Question 2

Rule of 300

Answer 2

5 Boxes: 60bpm
4 Boxes: 75bpm
3 Boxes: 100 bpm
2 Boxes: 150bpm
1 Box: 300bpm

Question 3

Length of EKG Components

Answer 3

P Wave: 2-3 boxes
PR interval: 3-5 boxes
QRS: 1.5-3 boxes

Question 4

Lead I

Answer 4

-limb lead
Right arm to Left arm
-normal wave form

-Circumflex A.
-lat wall of LV

Question 5

Lead II

Answer 5

-limb lead
Right arm to lower limb
-normal wave form

-Right Coronary A.
-Inferior portion of heart/apex

Question 6

Lead III

Answer 6

-limb lead
-leftt arm to lower limb
-normal wave form (may have inverted P and t wave)

-Right Coronary Artery
-Inferior portion of heart/apex

Question 7

aVF Lead

Answer 7

-augmented lead
Middle of body to lower limb

-Right coronary Artery
-Inferior portion of heart/apex
-normal wave form

Question 8

aVL Lead

Answer 8

-augmented lead
From middle to Left arm

-Circumflex A.
-lat wall of LV
-normal wave form

Question 9

aVR Lead

Answer 9

-augmented lead
From middle of body to right arm

-Top of RV
-inverted wave form

Question 10

V1

Answer 10

On Right 4th intercostal space
-septal, precordial lead
-L Ant. Descending A.

-inverted P-wave, deep S
-RV

Question 11

V2

Answer 11

On Left 4th intercostal space
-septal, precordial lead
-L Ant. Descending A.

-inverted P-wave, deep s
-RV, septum

Question 12

V3

Answer 12

On left between 2 and 4
-Anterior Heart, precordial lead

-Right coronary A.
-RV, septum, ant. heart

Question 13

V4

Answer 13

On left 5th intercostal space mid clavicular line
-Anterior Heart, precordial lead

-Larger R, small s
-Right coronary A., ant heart

Question 14

V5

Answer 14

On left 5th intercostal space anterior axillary line
-Lateral heart, precordial lead

-Larger R, small s
-Circumflex A., lat wall of heart

Question 15

V6

Answer 15

On left 5th intercostal space mid axillary line
-Lateral heart, precordial lead

-Larger R, small s
-Circumflex A., lat wall of heart

Question 16

Premature Ventricular Contraction

Answer 16

-random cell in ventricles fire out of sync of the rest, prematurely
-wide QRS

Question 17

Ventricular Bigeminy

Answer 17

-PVCs occur every 2 beats

Question 18

Ventricular Trigeminy

Answer 18

-PVCs occur every 3 beats

Question 19

Ventricular Couplet

Answer 19

-PVCs occur in 2s

Question 20

Ventricular Triplet

Answer 20

-PVCs occurr in 3s
-non sustained ventricular tachycardia
-STOP and check vitals

Question 21

Ventricular Tachycardia

Answer 21

-fast/large/wide QRS with no p wave, regular
-emergency

Question 22

Supraventricular Tachycardia

Answer 22

-fast/narrow QRS
-comes from atria not SA node

Question 23

Junctional Rhythm

Answer 23

-slow (40bpm) /no p wave/inverted T wave
-originates away from atria but depolarizes ventricles

Question 24

ST Elevation

Answer 24

-Acute MI
-Stimi

Question 25

ST Depression

Answer 25

-Angina/ischemia

Question 26

P Wave Inversion

Answer 26

-Heart block with junctional rhythm

Question 27

T Wave Inversion

Answer 27

-MI or ischemia -BBB -hypertrophy

Question 28

Ventricular Fibrilation

Answer 28

-dangerous, call code -irregular/fast/small

Question 29

Atrial Fibrilation

Answer 29

-chaos/irregular -QRS present, no p wave -multiple cells firing

Question 30

Atrial Flutter

Answer 30

-saw tooth/bread knife -1 cell going crazy -QRS present and irregular

Question 31

Torsades De Pointes

Answer 31

-V tach with prolonged QT, irregular -Looks crazy...how are you alive

Question 32

Right Bundle Branch Block

Answer 32

-delayed depolarization of RV -right lead (V1): "M" in QR, deep S -Left lead (V6): "W" in S wave

Question 33

R-Wave to find HR

Answer 33

-add up r waves in one strip x 6= HR

Question 34

Left Bundle Branch Block

Answer 34

-delayed depolarization of LV -right lead (V1): "W" in R wave -Left lead (V6): "M" in R wave -anomally always at tip of QRS

Question 35

1st Degree AV Block

Answer 35

-husband is late but comes home, long PR interval -from SA node -slow HR

Question 36

2nd Degree AV Block : Type 1

Answer 36

-husband is later and later and then doesn't come home -longer PR interval then dropped QRS -AV node

Question 37

2nd Degree AV Block : Type 2

Answer 37

-husband randomly doesn't come home -normal PR intervals -randomly dropped QRS -Bundle of his -DONT WORK WITHOUT PACEMAKER

Question 38

3rd Degree AV Block

Answer 38

-normal p wave unrelated to QRS, no corrrelation of QRS -random p waves -DONT WORK WITHOUT PACEMAKER