ekg ritm si axa
Post on 10-Apr-2016
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Viteza hartiei 25mm/secundaÞ Pt 1 mm hartie am 1/25=0.04 secunde
50 mm/secunda=> Pt 1mm hartie am 1/50=0.02 secunde
Metode de calcul a frecventei
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Metode de calcul a frecventei regulat
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FRECVENTA CARDIACA = BATAI PE MINUT1 MINUT = 60 de secunde1 patratel mic= 0.04 secunde1 patratel mare= 0.2 secundeÞ 60/0,04 =1500 patrele mici intr-un minutÞ 60/0.2 = patratele mari intr-un minutIn figura:A) Numaram patratelele mici dintre 2 complexe QRS succesive = 20 patratele mici1500/20= 75 batai/minut (60/20*0,04=75)B) Numaram patratele mari dintre 2 complexe QRS succesive = 4 patrate mari300/4=75 batai/minut (60/4*0.2=75)
Metoda de calcul a frecventei neregulat
Determinarea axei
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