Aritmiile cardiace Flashcards

1
Q

Tahicardie

A

tonusul vagal (PS)

tonusul S

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2
Q

Bradicardie

A

PS

S

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3
Q

Ritm sinusal N

A

pe EKG

P pozitive D1, D2

P negative AVR

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4
Q

In inspir

tonusul PS

frecventa cardiaca

A

In expir

frecventa cardiaca

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5
Q

Bradi/tahi sunt produse prin

A

tulburari automatism cardiac → o singura celula

tulburari de conducere → interactiunii anormale dintre celule

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6
Q

Automatismul crescut se face prin

A
  • potentialului prag
  • pantei fazei 4 a depolarizarii
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7
Q

Aceste oscilatii anormale (activitate declansata, trigger) pot fi agravate de

A

catecolamine

tulburari hidroelectrolitice

acidoza

hipoxie

anumite medicamente

cardiostimulare

→ aritmii

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