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EKG NEW GRAD EXAM QUESTIONS WITH CORRECT ANSWERS
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EKG NEW GRAD EXAM QUESTIONS WITH CORRECT ANSWERS
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EKG NEW GRAD EXAM QUESTIONSWITH CORRECT ANSWERS
Normal PR interval length - Answer-0.12-0.20 seconds
QRS normal width - Answer-0.06-0.11
What do peaked T waves indicate? - Answer-High potassium
QT interval normal length - Answer-0.36-0.44
EKG paper one small box - Answer-0.04 seconds
EKG paper one big box - Answer-0.20 seconds
Measuring rate 6 second method - Answer-Count number of R waves and multiply by
10
Measuring rate by division - 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) - Answer-1. Loose electrode that is not in contact
with the skin
2. A broken cable
3. Shivering or movement
Sinus brady treatment - Answer-underlying causes
transcutaneous pacing
atropine and epi while waiting for pacing
Sinus tachycardia treatment - Answer-underlying cause
beta blocker or calcium channel blocker
Supraventricular tachycardia clinical consequences - Answer-decreases ventricular
stroke volume
Stable SVT treatment - Answer-Adenosine (drug of choice), beta blocker, calcium
channel blocker
Unstable SVT - Answer-Synchronized cardioversion
clinical consequences of atrial flutter and atrial kick - Answer-loss of atrial kick
formation of clots that can cause emboli
, Atrial flutter treatment - Answer-Amiodarone, calcium channel blocker, digoxin and beta
blockers
Prevention of clot formation with anticoagulation
Atrial flutter definition - Answer-Rate of 250-350bpm
Impulses from a single, irritable atrial
Sawtooth pattern
Atrial fibrillation - Answer-Atrial rate more than 400
Controlled vs. uncontrolled A fib - Answer-Controlled - ventricular rate less than 100
Uncontrolled - ventricular rate more than 100
What is a loss of atrial kick a problem? - Answer-lose 30% of ventricular volume and
causes decrease in cardiac output
Junctional rhythm - where are impulses generative from? - Answer-AV junction
Junctional Rhythm - Answer-40-60 Regular!
-impulse from AV node w/ retro/antegrade transmission
- *P wave often inverted/buried/follow QRS*
- slow rate
- narrow QRS (not wide like ventricular)
Junctional rhythm treatment - Answer--Treat underlying causes
-Severely symptomatic: atropine or transcutaneous pacemaker
What are the 3 different types of junctional rhythms and their heart rates? - Answer--
Intrinsic junctional rates- 40-60bpm
-Accelerated junctional rate = 60-100bpm
-Junctional tachycardia rate = over 100 bpm
What is the ventricular pacemaker rate? - Answer-20-40bpm
T/F ventricular rhythms may be life threatening - Answer-True (except for PVC)
Premature ventricular contractions characteristics - Answer--Impulses originating from
the ventricles
-QRS complex is wide and bizarre
-QRS complex greater than 0.12 seconds
What are the different types of PVC patterns? - Answer--Quadrigeminy
-Trigeminy
-Bigeminy
-Couplet
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