Electro Flashcards

1
Q

Creador de la electrocardiografía

A

Willem Einthoven

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2
Q

Histología del músculo cardiaco

A

Músculo estriado de células empantalonadas

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3
Q

Fases del potencial de acción cardiaco

A

Fase 0 - entrada de sodio rápido
Fase 1 - entrada de calcio rápido
Fase 2 - entrada lenta de calcio y salida lenta de potasio
Fase 3 - salida de potasio
Fase 4 - Regulación bomba Na/K ATPasa

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4
Q

Definición de vector

A

Recta definida en tamaño, dirección y sentido = fuerza

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5
Q

Definición de dipolo

A

Carga negativa y carga positiva próximas entre si

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6
Q

Vectores en ECG

A

Septal - .o1 segundos
Pared libre - .04 segundos
Basal - .06 segundos

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7
Q

Derivaciones polares

A

aVL, aVF, aVR

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8
Q

Derivaciones bipolares

A

D1, D2, D3

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9
Q

Derivaciones precordiales

A

V1 a V6

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10
Q

Isquemia lateral alta

A

D1, aVL

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11
Q

Isquemia lateral baja

A

V5 y V6

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12
Q

Isquemia inferior

A

D2, D3 y aVF

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13
Q

Isquemia septal

A

V1 y V2

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14
Q

Isquemia anterior

A

V3 y V4

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15
Q

Velocidad del papel en ECG

A

25 mm por segundo

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16
Q

Duración de onda P

A

.04 a .11

17
Q

Duración de intervalo P - R

A

.12 a .21

18
Q

Duración de complejo QRS

A

.08 a .12

19
Q

Duración de intervalo Q - T

A

.36 a .41

20
Q

Cálculo para frecuencia

A

En 30 cuadros grandes, # de QRS x 10

20
Q

Ritmo sinusal

A

Onda P antes de QRS