EKG (diseases only)

Question 1

Right Atrial Enlargement

Answer 1

Lead II

increased P wave amplitude first curve

Question 2

Lt Atrial Enlargement

Answer 2

Lead V1

increased P amplitude and duration second curve

Question 3

Rt Ventricular Hypertrophy

Answer 3

Rt axis shift
Lead V1: R>S
Lead V6: S>R

Question 4

Lt Ventricular Hypertrophy

Answer 4

S in V1 + R in V5/6 => 35 mm

R in lead I > 15 mm

Question 5

RBBB

Answer 5

widened QRS
RSR’ in lead I
Prominent S in V6

Question 6

LBBB

Answer 6

widened QRS
Lead I: no R, prominent S
V6: no Q, broad R

Question 7

LAFB

Answer 7

Left Axis Deviation
Lead I: Q
Lead III: wide/deep S

Question 8

LPFB

Answer 8

Right Axis deviation
Lead I: wide/deep S
Lead III: Q

Question 9

Posterior MI

Answer 9

Lead V1/2: increased R wave NO axis deviation

RCA

Question 10

Inferior MI

Answer 10

II, III, AVF: Q wave

RCA

Question 11

Anteroseptal MI

Answer 11

V1, V2: Q

LAD

Question 12

Anteroapical MI

Answer 12

V3,V4: Q

LAD

Question 13

Extensive Ant MI

Answer 13

V1-V6: Q

LCA

Question 14

Anterolateral MI

Answer 14

V5,V6: Q

CFX

Question 15

Transient Myocardial Ischemia

Answer 15

V2-V6: T wave depression

depression of ST segment

Question 16

Acute ST Segment Elevation MI (STEMI)

Answer 16

Elevation overlying infarction; depression in opposite leads

Q WAVES

Question 17

Acute Non-STEMI

Answer 17

coronary thrombus

opposite of STEMI (depression at infarct)
no Q waves

Question 18

Hypokalemia

Answer 18

ST depression, flattened T

* U WAVE***

Question 19

Hyperkalemia

Answer 19

TALL TALL T

Question 20

hypercalcemia

Answer 20

shortened QT

Question 21

hypocalcemia

Answer 21

prolonged QT

Question 22

Sinus Bradycardia

Answer 22

everything normal but TS interval = decreased HR

Question 23

SSS

Answer 23

bradycardia-tachycardia syndrome

Question 24

Junctional escape rhythms

Answer 24

(AV node/bundle of His)
No P wave, normal QRS
40-60 bpm

Question 25

ventricular escape rhythm

Answer 25

(purkinje fibers)
no P wave, WIDENED QRS
30-40 bpm

Question 26

1* AV Block

Answer 26

PR interval >0.2 sec

Question 27

2* AV block Type I

Answer 27

PR interval progressively increases until skip in QRS

Question 28

2* AV block Type II

Answer 28

sudden loss of QRS

widened QRS when present

Question 29

3* AV block @ AV

Answer 29

no relationship btwn P and QRS

normal QRS @ 40-60

Question 30

3* AV block @ His

Answer 30

QRS widened slow rate, no rltn with P

Question 31

Sinus Tachychardia

Answer 31

SA>100 bpm; normal P and QRS

Question 32

APB

Answer 32

early than expected P wave with weird shape

Question 33

Atrial Flutter

Answer 33

sawtooth appearance, 2a:1v ( fixed circuit reentry)

Question 34

afib

Answer 34

no p waves, irregularly timed QRST (random reentry)

Question 35

PSVT

Answer 35

reentry at av node

Question 36

AVNRT

Answer 36

no P wave, regular tachycardia

Question 37

AVRT (Wolf-Parkinson)

Answer 37

PR <.12

QRS slurred, widened

Question 38

VPB

Answer 38

widened QRS complex, T wave inverted (patterned)

Question 39

VT

Answer 39

widened QRS

Question 40

torsades de pointes

Answer 40

polymorphic VT produced by early afterdepol

Question 41

vfib

Answer 41

flat line with some bumps