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2026
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, EKG interpretation
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1. how is the heart contracted? electrical conduction
2. pathway 1. SA NODE (RA)
2. AV NODE (RA)
3. BUNDLE BRANCHES (V)
4. PURKINJE FIBERS
3. risk for dysrhythmias -age
-MI
-hypertension
-valvular disease
-cardioamyopathy
-infections
-diabetes
-sleep apnea
-heart surgery
-drug or tabacco
-electrolyte imbalance
-DIGOXIN
4. dysrythmias can lead to cardiac -decrease in cardiac output
instabilities like -palpitations
-hypotension
-diaphoresis
-short of breath
-synope
-light headedness
-weakness
5. the amplitude (height ) of one 1 mm
tiny box is measured in millime-
ters, one tiny box is
2026
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