Intro to Dad-Jokes (Lecture 1 basic EKG)

Question 1

What pre-coridal lead is in the mid clavicular line? Which is in the mid axillary line?

Answer 1

V4

V6

Question 2

Lead placement:
I = ___ ____ is negative, ____ ____ is positive
II = _____ ____ is negative, ____ _____ is positive
III = ____ ____ is negative, ____ ____ is positive

Answer 2

L. arm, R arm;
right arm, left leg;
left arm, left leg

Question 3

What is R-wave progression?

Answer 3

in normal people, R wave increases in height from V1 to V5

Question 4

The PR interval corresponds to ____ conduction, or the time between atrial ____ to the time start of ventricular _____. It should be less than ___ msec or ____ big box(es)

Answer 4

AV node;
depolarization, depolarization
200, 1

Question 5

The QRS represents ____ ____. It should be less than ____ msec, or ____ small boxes

Answer 5

ventricular depolarization;

120, 3

Question 6

The QT interval should be less than ____ msec

Answer 6

500

Question 7

What are the “inferior leads”?

Answer 7

2, 3, aVF

Question 8

What is “normal rhythm” called?

Answer 8

sinus rhythm

Question 9

no P in front of each QRS indicates ____ _____

Answer 9

junctional rhythm

Question 10

Sawblade/sawtooth pattern of an EKG indicates _____

Answer 10

atrial flutter

Question 11

Atrial fibriliation is characterized by a “___” baseline

Answer 11

gravely

Question 12

Axis: 
lead \_\_\_ is at 90 degrees (vertical)
lead III is at \_\_\_\_ degrees
Lead aVL is at \_\_\_ degrees
Lead \_\_\_ is at 60 degrees

Answer 12

aVF;
120;
-30;
II

Question 13

In the normal heart axis, lead ____ and lead ___ show positive QRS’s.

Answer 13

1, AVF

Question 14

In left axis deviation, the angle is between ___ and ___ degrees. Lead 1 is _____ and lead AVF is ____

Answer 14

0 to -90;

positive, negative

Question 15

In Right axis deviation, the angle is between _____ and ____. Lead 1 is ____ and lead avf is ____

Answer 15

90 to 180;

negative, positive

Question 16

In extreme right axis deviation, the angle is between ____ and ____. Lead 1 is ____ and lead AVF is ____

Answer 16

-180 to -90;

negative, negative

Question 17

What is typically the main cause of right ventricular hypertrophy? What do the precordial leads show?

Answer 17

pulmonary hypertension;

large right-sided R waves

Question 18

+ lead 1, negative lead AVF, and negative lead 2. what is the diagnosis?

Answer 18

left anterior fasicular block

Question 19

Leads ___, ____, and _____ are called “flutter leads”. They show classic negative ____ deflections

Answer 19

2, 3, aVF;

sawtooth

Question 20

The typical atrial flutter flutters at ___ bpm, but the AV node only “lets” it flutter at ___ bpm

Answer 20

300, 150

Question 21

In junctional rhythm, the ___ wave often deflects downward (is negative) in the inferior leads

Answer 21

p