Ekg interpretation question
- 0Jan 19, '13 by Kaysmom8Hello,
Can anyone help me understand ekg's i'm so confused. When you start out your supposed to do the 5 steps:
P wave- normal is .12-.20
PRI- normal is .12-.20 or 3-5 small boxes wide
QRS- normal is .04-.10 or 1-2 1/2 small boxes wide
Rate- # of R waves in 6 seconds multiplied by 10
Rhythym- mark the R waves on paper and see if they match up
When I look at lead I and everything is upside down I don't know what any of the waves are? Is it the same criteria as above? From what I could find out the different leads are different angles of the heart?
How on earth will I ever remember the normals vs. the abnormals for all the rhythyms, junctions, blocks...
Any help is greatly apprecitated Thanks
- 0Jan 19, '13 by emerjenseeHello!
EKG's are pretty tricky sometimes, especially the 12 leads. I found a wonderful app for phones called "Instant ECG" that really helped break down the basics and gave a ton of examples of normal vs abnormal strips and 12 leads. It was only $0.99 and had a wealth of information!
As for the inverted waves, they are lead specific and are showing a negative deflection of energy due to the different angle. All of the intervals and lengths should be the same.
Hope this helps a little!
- 0Jan 20, '13 by LadyFree28Try learntheheart.com and skillstat.com, which had a great way of breaking down monitor rhythms...best information ever!!
Don't worry, lead interpretation can be tricky the first time...and in nursing school, you are going to get a slew of instructors that certain subjects may not be their forte...however, the Internet sites have a wealth of information (both sites were recommended by my nursing instructor in my acute care class...she is a ICU/CCU nurse). Hope this helps!!!