EASY WAY TO REMEMBER: FIRST DEGREE HEART BLOCK

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 FIRST DEGREE HEART BLOCK (BASICS)

IF EACH WAVE OF DEPOLARIZATION THAT ORGINATES IN THE SA NODE IS CONDUCTED TO THE VENTRICAL, BUT THERE IS DELAY SOMEWHERE ALONG THE CONDUCTION PATHWAY, THEN PR INTERVAL IS PROLONGED.(THIS IS CALLED FIRST DEGREE HEART BLOCK)

LET'S MAKE IT SIMPLE: FIRST DEGREE HEART BLOCK  "PR INTERVAL PROLONGED"

IT MAY BE A SIGN OF CORONARY ARTERY DISEASE, ACUTE RHEUMATIC CARDITIS, DIGOXIN TOXICITY (OR) ELECTROLYTE DISTURBANCES.

AS YOU CAN SEE PR INTERVAL 360 MS ( NORMAL PR INTERVAL 180 MS)
[180 MS :5 SMALL  BOX]

IF YOU NOTICED PR INTERVAL PROLONGED MORE THAN 180 MS IT'S FIRST DEGREE HEART BLOCK (MORE THAN 5 SMALL BOX)

 

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