Intro to Dad-Jokes (Lecture 1 basic EKG) Flashcards
What pre-coridal lead is in the mid clavicular line? Which is in the mid axillary line?
V4
V6
Lead placement:
I = ___ ____ is negative, ____ ____ is positive
II = _____ ____ is negative, ____ _____ is positive
III = ____ ____ is negative, ____ ____ is positive
L. arm, R arm;
right arm, left leg;
left arm, left leg
What is R-wave progression?
in normal people, R wave increases in height from V1 to V5
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)
AV node;
depolarization, depolarization
200, 1
The QRS represents ____ ____. It should be less than ____ msec, or ____ small boxes
ventricular depolarization;
120, 3
The QT interval should be less than ____ msec
500
What are the “inferior leads”?
2, 3, aVF
What is “normal rhythm” called?
sinus rhythm
no P in front of each QRS indicates ____ _____
junctional rhythm
Sawblade/sawtooth pattern of an EKG indicates _____
atrial flutter
Atrial fibriliation is characterized by a “___” baseline
gravely
Axis: lead \_\_\_ is at 90 degrees (vertical) lead III is at \_\_\_\_ degrees Lead aVL is at \_\_\_ degrees Lead \_\_\_ is at 60 degrees
aVF;
120;
-30;
II
In the normal heart axis, lead ____ and lead ___ show positive QRS’s.
1, AVF
In left axis deviation, the angle is between ___ and ___ degrees. Lead 1 is _____ and lead AVF is ____
0 to -90;
positive, negative
In Right axis deviation, the angle is between _____ and ____. Lead 1 is ____ and lead avf is ____
90 to 180;
negative, positive
In extreme right axis deviation, the angle is between ____ and ____. Lead 1 is ____ and lead AVF is ____
-180 to -90;
negative, negative
What is typically the main cause of right ventricular hypertrophy? What do the precordial leads show?
pulmonary hypertension;
large right-sided R waves
+ lead 1, negative lead AVF, and negative lead 2. what is the diagnosis?
left anterior fasicular block
Leads ___, ____, and _____ are called “flutter leads”. They show classic negative ____ deflections
2, 3, aVF;
sawtooth
The typical atrial flutter flutters at ___ bpm, but the AV node only “lets” it flutter at ___ bpm
300, 150
In junctional rhythm, the ___ wave often deflects downward (is negative) in the inferior leads
p
