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dica pra quem faz enfermagem e medicina. aprenda a interpretar um eletrocardiograma
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O eletrocardiograma é um exame que identifica a atividade elétrica cardíaca. O impulso gerado nas células marca-passo do Nodo Sino-atrial provoca contração dos cardiomiócitos atriais e chega também no Nodo Átrio-ventricular. Há um atraso neste Nodo e na sequência, este impulso elétrico chega aos ventrículos via feixe interventricular até o ápice e depois voltando a base pelas fibras de Purkinje. Neste momento os ventrículos sofrem contração, despolarização dos cardiomiócitos, e no ECG.
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