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EKG

Cardio

QuestionAnswer
white - upper right on chest
black upper left on chest
brown 5th ICS right sternal border
green right hip
red left hip
P WAVE results from firing of the SA node/ ATRIAL DEPOLERIZATION ALL should look the same
PR interval relates to the depolarization of the right and left atria relates to the impulse delay through the AV node
QRS complex Q wave= thre first downward delfection R wave = the first upward delfection of the QRS S wave = is the downward deflection after the R wave
ST segment it begins at the end of the QRS and ends at the beggining of theT wave it represents eary depoleraztion of the ventricles If elevated MI if depressed ISCHEMIA
T wave follows the ST segment represents ventricular repolerization tall Twave idicates HYPERKALEMIA FLAT = KYPOkalemia if depressed indicates ischemia
J joint the end of the QRS complex and the deggining of the ST segment
U wave repolerizaion of the Purkinje fibers and or ventricular septum
RR interval the amount of time bewteen heartbeats
QT interval total time bewteen the beggining of ventricular depolerizaion and the end of ventricular repolerization
ONE BLOCK = 0.04
5 BLOCKS 0.20
6 steps interpeting EKG LOOK for regularity or irregularity determine heart rate loop for p waves measure PR interval examine the QRS complex examine the T wave
LOOKING for p waces are p waves present are they consitant in position are the falling in the same place relative to the QRS is the P wave proceeding every QRS
measureing PR interval are they consistant in position between 0.12-0.20
Examine the QRS complex is it narrow or wide is there a QRS for every Pwave 0.12-.20
Created by: mmishue
 

 



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