EKG : Sinus Arrhythmia

Sinus Arrhythmia
= Each individual is sinus
= some group of faster rate
= some group of slower rate
= different between rate of each group
is more than 4 little boxes ( 0.16secs )
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Individual Sinus

• P-wave positive in Lead I/II/avF
• P-wave negative in Lead avR/V1
• PR-interval less than 5 little boxes
• QRS complex follow P-wave
• QRS complex less than 3 little boxes

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Happens when "Breathing"

Inspiration = Faster Rate
Expiration = Slower Rate
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EKG : Sinus Bradycardia

Sinus Bradycardia
= sinus conduction + Slower Rate
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Slower Rate = Less than 60 bpm
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Sinus conduction
1)P-wave

• Positive in Lead I/II/avF
• Negative in Lead avR/V1
• Follow by QRS in every P-wave

2)PR-interval

• Less than 5 little boxes
• means no blockage

3)QRS complex

• Follows every P-wave
• Less than 3 little boxes

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EKG : Sinus Tachycardia

Sinus Tachycardia = Sinus conducting wave + faster Rate

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Faster Rate = More than 100 bpm

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Sinus conducting wave

1) P-wave

• Postitive in Lead I/II/avF


• Negative in Lead avR/V1


• Follow by QRS in every beat

2)PR-interval

• Less than 5 little box
  
• means no block
  

3)QRS

• follow every p-wave


• Less than 3 little boxes

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EKG : Normal sinus rhythm

What is the definition of normal EKG in my own word ?

Normal Sinus Rhythm

= Sinus conducting Rhythm

= Sinus conducting + Sinus Rate

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Sinus Rate = 60 - 100 bpm

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Sinus conducting

1) P-wave

• Positive in Lead I/II/avF
• Negative in Lead avR/V1
• Following by Fellow QRS complex of the same rate
• ( 60-100bpm)

2)PR-interval

• less than 5 little box
• means normal conduction from SA-node to AV-node
• ( They can travel along in time )

3)QRS complex

• Follow every P-wave
• Same rate to P-wave
• Less than 3 little box

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Humbie's very first aim !!!

Today i just had Medical OSCE exam which was screwed up.

I then realized that it was because i haven't been paying enough attention to my career and realized i'd be such a bad bad doctor.

So for this occasion,

I swear that i'd read at least one topic a day.

And to share this to the world here.

On Blogger site.

Be witness, Enjoy

May Wisdom be with you all !