EKG

Question 1

How much is one small box

Answer 1

0.04 seconds

Question 2

How much is bog box

Answer 2

0.20

Question 3

so 5 large boxes = how many seconds

Answer 3

1!

Question 4

What is the P wave

Answer 4

atrial depoarization

Question 5

what is the qrs wave

Answer 5

ventricle depolarization

Question 6

What is the T wave

Answer 6

Ventricular repolarization

Question 7

What is a U wave

Answer 7

The ventricular after-depolarization

Question 8

what is the rate calculation

Answer 8

300,150,100,75,60,50

Question 9

What is the normal PR interval

Answer 9

0.12-0.2 seconds

Question 10

normal QRS interval

Answer 10

0.06-0.10 seconds

Question 11

normal QTc

Answer 11

0.30-0.46 seconds

Question 12

Inverted P waves in lead 1 but upright in 2

Answer 12

right axis deviation

Question 13

Upright P waves in lead 1 but inverted in 2

Answer 13

Left axis deviation

Question 14

sawtooth pattern rate of 250-350

Answer 14

atrial flutter

Question 15

Ventricular tach

Answer 15

large wide humps

Question 16

PR> 0.20 seconds with a 1:1 conduction

Answer 16

1st degree block

Question 17

PR interval progressively lengthens then drops

Answer 17

2nd degree type 1

Question 18

2nd degree type 1 is also called

Answer 18

Wencheback

Question 19

P waves intermittently blocked

Answer 19

2nd degree type 2

Question 20

Wide QRS with independent P waves

Answer 20

3rd degree AV block

Question 21

Is ventricular tachycardia a type of 3rd degree block

Answer 21

No because ventricular tachy QRS are more frequent than P

Question 22

Right atrial enlargement

Answer 22

P wave height is any limb lead is >2.5 mm

P wave in V1 is biphasic and the initial portion is largest

Question 23

Left atrial enlargment

Answer 23

P wave in lead 2 is notched with >0.04 sec between peaks

P wave in V1 is biphasic with terminal portion the largest and usually with a negative deflection

Question 24

Right ventricular hypertrophy

Answer 24

Right axis deviation AND

R wave in V1 is > 7mm tall

Question 25

Left ventricular hypertrophy

Answer 25

R wave in aVL +S in V3 greater than 24 in men and 20 in women
Maximum R+S in any precordial lead (V1-V6) >45
R wave in V5 >26mm
R wave in aVL > 12mm (Most specific)

Question 26

tombstone

Answer 26

ST elevation in acute MI

Question 27

Acute MI

Answer 27

ST elevations of >1-2 mm in 2 or more contiguous leads

Question 28

Q wave

Answer 28

old infarct

Question 29

Signs of ischemia

Answer 29

T waves- biphasic, symmetrical or deeply inverted

ST depressions or downslopings

Question 30

LBBB

Answer 30

QRS is > 0.12

Broad R waves in 1, V5 and V6 (notched)

Question 31

RBBB

Answer 31

QRS >0.12 sec
Rabbit ears of R waves in V1 and V2 (second larger)
Prolonged Q-R time in V1 and V2 >0.05 seconds

Question 32

Electrical alternans

Answer 32

Pericarditis/ pericardial tamponade

Question 33

Diffuse ST elevations except in aVR

Answer 33

Pericarditis

Question 34

Peaked T waves

Answer 34

Hyper kalemia (5.5-6.5)

Question 35

Loss of P waves, Sine pattern in QRS

Answer 35

Hyperkalemia (greater than 7.5)

Question 36

U waves and flat T waves

Answer 36

Hypokalemia

Question 37

S1Q3T3

Answer 37

Pulmonary embolus- Sinus tach is the most common EKG change

Question 38

Osborne waves

Answer 38

later upright terminal QRS deflection –>hypothermia

Question 39

V1-V4 artery

Answer 39

LAD

Question 40

V1 and V2 artery

Answer 40

Proximal LAD

Question 41

1, aVL, V5, V6 artery

Answer 41

Circumflex

Question 42

1, aVL, V4, V5, V6 artery

Answer 42

Mid LAD or CFX

Question 43

2, 3, aVF artery

Answer 43

RCA

Question 44

ST Depressions in V1, V2

Answer 44

Posterior wall

Question 45

V1- V4 area

Answer 45

Anterior wall

Question 46

V1 +V2 area

Answer 46

septal

Question 47

1, aVL, V5, V6 area

Answer 47

lateral wall

Question 48

2, 3, aVF

Answer 48

inferior