Update.
Normal PR interval length - Correct Answer 0.12-0.20 seconds
QRS normal width - Correct Answer 0.06-0.11
What do peaked T waves indicate? - Correct Answer High potassium
QT interval normal length - Correct Answer 0.36-0.44
EKG paper one small box - Correct Answer 0.04 seconds
EKG paper one big box - Correct Answer 0.20 seconds
Measuring rate 6 second method - Correct Answer Count number of R waves and multiply
by 10
Measuring rate by division - Correct Answer Count large boxes between 2 R waves and
divide by the number of large boxes. Ex: 300/3.4
What causes artifacts on an EKG? (3) - Correct Answer 1. Loose electrode that is not in
contact with the skin
2. A broken cable
3. Shivering or movement
Sinus brady treatment - Correct Answer underlying causes
transcutaneous pacing
atropine and epi while waiting for pacing
Sinus tachycardia treatment - Correct Answer underlying cause
beta blocker or calcium channel blocker
, Supraventricular tachycardia clinical consequences - Correct Answer decreases
ventricular stroke volume
Stable SVT treatment - Correct Answer Adenosine (drug of choice), beta blocker, calcium
channel blocker
Unstable SVT - Correct Answer Synchronized cardioversion
clinical consequences of atrial flutter and atrial kick - Correct Answer loss of atrial kick
formation of clots that can cause emboli
Atrial flutter treatment - Correct Answer Amiodarone, calcium channel blocker, digoxin and
beta blockers
Prevention of clot formation with anticoagulation
Atrial flutter definition - Correct Answer Rate of 250-350bpm
Impulses from a single, irritable atrial
Sawtooth pattern
Atrial fibrillation - Correct Answer Atrial rate more than 400
Controlled vs. uncontrolled A fib - Correct Answer Controlled - ventricular rate less than
100
Uncontrolled - ventricular rate more than 100
What is a loss of atrial kick a problem? - Correct Answer lose 30% of ventricular volume
and causes decrease in cardiac output
Junctional rhythm - where are impulses generative from? - Correct Answer AV junction
Junctional Rhythm - Correct Answer 40-60 Regular!
-impulse from AV node w/ retro/antegrade transmission
- *P wave often inverted/buried/follow QRS*