EKG
EKG
EKG
EKG
EKG
EKG
100

Upright and rounded, SA node fires 

P WAVE

100

AV NODE intrinsic rate 

40-60

100

1 small block on EKG PAPER 

0.04 sec ( time) 

100


Rate less than 60, can be caused by drugs, digoxin, BB, CCB



100


Or interval greater than 0.12 or 3 sm blocks

Heart block

100


Atrial Flutter

F waves

200

Atrial depolarization or contraction

PR interval

200

First downward deflection on EKG 

what is Q wave?

200

# small boxes in 1 large square

5, 5 large  boxes = 1 second, 30 big boxes = 6 seconds 

200


Rate greater than 100 less than 160


Sinus tachycardia

200

Cardioversion

Synchrononized with R wave, treat AF AND A Flutter
Anticoagulant before and after at least for 1 month prevent stroke, sedate pt

200


atrial fibrillation

300

Normal PR INTERVAL 

0.12 (3 small blocks) -0.20 ( 5 small blocks)

300

First upward or positive deflection after Q wave

R wave

300

How to count rate in six second strip

Count the # R waves and multiply by 10. Ex.   14 R WAVES X 10= 140 bpm for HR

300


Can be due to stress, hypoxia, hypokalemia, excess caffeine, alcohol, 

Vagal maneuvers, BB, ablation

SVT Supra ventricular tachycardia rate greater than 160, narrow QRS, p waves may not be visible

300

Defibrillation 

Treat useless V tach or V Fib
Not syncronized with EKG wave form

300


v fib into asystole

400

Long PR INTERVAL or greater than 0.20 sec

First degree heart block or Dig toxicity

400

Negative deflection after R wave 

S WAVE

400

Is rate regular or irregular 

Compare distance between R WAVES are they equal?

400


NO P wave before PVC, wide QRS  ( greater than 0.12) inverted t wave 3 or more VTach


PVC



400


2 consecutive PVC in a row

PVC couplet

400


PAC   premature atrial contraction

500

Intrinsic rate SA node

60-100

500

Normal QRS INTERVAL 

LESS THAN 0.012 secs or 3 small boxes 




500

Sinus rhythm

Is there a P wave before every QRS?

500


3 or more PVC!  With A pulse give drugs like Amiodorone, pulseless VT shock pt





500

PEA

Pulseless electrical activity , shows electrical activity on monitor but patient has no pulse



500


normal sinus rhythm (NSR) HR 80