EKG Flashcards
What are the leads associated with LCX?
Lead I and aVL
V5-6
What does it mean if the rate is over 300?
It is artifact or non-mammalian.
What leads are associated with RCA?
Lead II, III, aVF
V1-3
What does a rate of 200 make you think?
Bypass tract
What does a rate of 150 or close to 300 make you think?
A fib or a flutter
What does a rate of 160+ make you think?
PSVT
At what rate is it probably no longer sinus tachy?
140+
What is the rate at which the AV node takes over?
50
At what rate do the ventricles take over?
40
Why is Lead I my friend?
Because all the waves should be positive in this lead and if they aren’t it means an abnormal heart
What is a q wave?
A negative force before the R wave
How can you kill someone with pericarditis?
By missing it and calling the cath lab. Can cause tamponade
In what lead should all waves be negative?
AVR
What should you do if there is isolated ST elevation in aVR?
Look for ST depression in other leads because this is an LAD or left main issue
What else should you think of if you see positive waves in aVR?
TCA overdose
How long should QT be?
No longer than 440 ms (11 boxes)