EKG Week 1
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“300 Count Down”
Box Count Method
Large Box Method (Regular rhythms)
• Count the # of large boxes between 2 R waves &
divide into 300
Small Box Method (Regular rhythms)
• Count the # of small boxes between 2 R waves &
divide into 1500
s
Dysrhythmia Analysis – “3 Rs”
• Rate
• Rhythm
5
Dysrhythmia Analysis – “3 Rs”
• Determine Rate (Count R waves)
– Normal range (60 - 100)
– Slow (Bradycardia, < 60 bpm)
– Fast (Tachycardia, >100 bpm)
– None
6
• Relation(ships) & Durations
7
8