Clinical EKGs

Question 0

Inferior Leads

Answer 0

II
III
AVF

Question 1

Lateral Leads

Answer 1

I
AVL
V5
V6

Question 2

Septal Leads

Answer 2

V1

V2

Question 3

Anterior Leads

Answer 3

V3

V4

Question 4

Artery Responsible for anterior wall infarctions

Answer 4

LAD (anterior interventricular)

leads V1-V6

Question 5

Artery responsible for inferior wall infarction (RV infarction)

Answer 5

Right Coronary artery
II
III
AVF
V3-V6

Question 6

Artery responsible for lateral wall infarction

Answer 6

Circumflex artery
I
AVL
V5
V6

Question 7

Artery responsible for posterior wall infarction

Answer 7

Posterior descending artery (posterior interventricular artery
V1-V3

Question 8

What lead do we call the transition lead?

Answer 8

V3

Question 9

What leads do we want to look for normal P waves in?

Answer 9

II

V1

Question 10

Four questions for sinus rhythm?

Answer 10

1. P married to QRS
2. QRS narrow
3. P waves present
4. Rhythm is regular

Question 11

P wave looks like it hurts to sit on

Answer 11

R atrial enlargment

p pulmonale

Question 12

P wave is notched, or looks like an “M”

Answer 12

Left atrial enlargement

P Mitrale

Question 13

Rate greater than 100

Answer 13

tachycardia

Question 14

If you see narrow QRS tachycardia that is irregular, what three things are you thinking?

Answer 14

A fib
MAT
atrial tachycardia with variable AV conduction

Question 15

If you see a regular tachycardia with narrow QRS, whats the next thing you should look for?

Answer 15

P waves
if you have them, look to see if atrial rate is greater than ventricular rate. Yes=atrial flutter
No=SVT

Question 16

Define bradycardia

Answer 16

HR less than 60

Question 17

Mild global ST elevation

Answer 17

LVH

Question 18

An EKG that is irregularly irregular

no discernable p waves

Answer 18

atrial fibrillation

Question 19

Differential of a NARROW COMPLEX irregular tachycardia (3 things)

Answer 19

a fib
a flutter with variable AV conduction
multifocal atrial tachycardia (MAT)

distinguishing between these three is based on evaluation of ATRIAL activity

Question 20

narrow complex irregular tachycardia

with regular atrial activity

Answer 20

atrial flutter

look for sawtooth pattern

Question 21

narrow complex irregular tachycardia

associated with irregular atrial activity, and the p waves have at least three different morphologies

Answer 21

MAT

seen in patients with COPD

Question 22

narrow complex irregular tachycardia

not associated with any notable atrial complexes at all - irregularly irregular

Answer 22

atrial fibrillation

Question 23

Shit indicative of Left ventricular hypertrophy

Answer 23

QRS in V4-V6 jumping off the page
peaked t waves
mild global st elevation

Question 24

premature beats with wide qrs complexes

Answer 24

PVCs

premature ventricular contractions

Question 25

ST elevation seen in inferior leads

Answer 25

leads II, III, AVF
STEMI
(what artery would be associated with this? RCA)
(where would we see ST depression? I and AVL)

Question 26

Normal QT interval?

Answer 26

.35-.50 sec

Question 27

prolonged QT interval associated with

Answer 27

torsades (polymorphic Vtach)

MI?

Question 28

wide, fast QRS complexes

Answer 28

ventricular tachycardia

Question 29

Large R in V1, V2, no real transition complex in V3

Answer 29

Right ventricular Hypertrophy

Question 30

What points you towards a PAC

Answer 30

PAC= premature atrial contraction

early P wave. P wave is fucked up. qrs narrow. may or may not conduct through ventricle.

Question 31

What does stemi stand for

Answer 31

st elevation myocardial infaction

pay attention to what leads you see the elevation in. then think about what arteries supply that area.

Question 32

what does the qrs complex look like in pvc

Answer 32

wide complex

Question 33

V fib

Answer 33

just looks fucked up.