EKG Flashcards
What lead are we primarily looking at
lead 2
What does the horizontal line measure
time
What does the verticle line measure
Amplitude
What does the smallest box translate to time
0.04 sec
What do the bigger boxes translate to
0.20 seconds
What does the smallest box translate to volts?
0.1mV
Big box volts
0.5mV
Typical PR interval
0.12-0.2 sec
QRS complex
0.08-0.1 sec
QT interval
0.4-0.43
RR interval
0.6-1
Step 1
Map P waves/any waves for regularity
Step 2
determine rate
1.) 6-sec rule (count QRS in the 6-sec strip)
2.)Using a Determining chart (count spaces between RR)
Step 3
Is P-wave present? Is it before QRS?
Step 4
Is PR interval <0.2 sec
Step 5
Is there a QRS complex? Is it <0.1 sec
Step 6
Is T-wave rounded or shouldering
Step 7
Interpretation