Formeln: Herz, EKG Flashcards

1
Q

HF berechnung 50mm Papiervorschub?

A

300 / RR-Abstand in cm

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2
Q

HF berechnung 25mm Papiervorschub?

A

150 / RR-Abstand in cm

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3
Q

wieviele Sekunden entspricht 1mm bei 50mm Papiervorschub?

A

0,02s

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4
Q

wieviele Sekunden entspricht 1mm bei 25mm Papiervorschub?

A

0,04s

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5
Q

QTc ?

A

QTc = QT (ms) / Wurzel (RR (sek!!)

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6
Q

Strömungsgeschwindigkeit?

A

V = I / Q

I= Stromstärke

Q= Querschnitt (πr2)

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7
Q

Stromstärke?

A

I = V * Q

I= Stromstärke, Volumenverschiebung pro Zeit

V= Geschwindigkeit

Q= Querschnitt , πr2

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8
Q

MAP?

A

MAP= SV * HF * TPR

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9
Q

Volumenelastizitätsmodul?

A

k = °p / °V * V

Druckänderung/ Volumenänderung * Gesamtvolumen

Volumentelastizitätskoeffizient berücksichtigt das Gesamtvolumen nicht

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10
Q

Pulswellengeschwindigkeit (PWG)?

A

c = leff / t

l= zurückgelegte Strecke

t = zeit

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11
Q

Mithilfe der PWG lässt sich wie der Volumenelastizitätsmodul bestimmen?

A

k = c2 * p

c= PWG

p= Dichte des Bluts (1,055 kg/l)

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12
Q
A
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