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M/S 3 > Exam 2 - hemodynamics > Flashcards

Exam 2 - hemodynamics Flashcards

1
Q

what are the 4 things hemodynamic monitoring measures

A

HR
blood flow
O2 delivery
tissue perfusion

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2
Q

how to measure CO

A

HR x SV

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3
Q

what is a normal CO

A

4-8 L/min

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4
Q

what is ejection fraction (EF)

A

% of blood ejected with each beat

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5
Q

what is a normal EF

A

60-70%

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6
Q

an EF below __% is indicative of HF

A

40%

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7
Q

what is stroke volume (SV)

A

volume of blood being ejected with each beat

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8
Q

what are some reasons for an elevated SV

A

bradycardia
vasoconstriction with shock, HTN
positive inotropic meds (dopamine)
L ventricular HF

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9
Q

what are some reasons for a decrease in SV

A

vasodilation (shock, drugs)
decreased afterload
tachy dysrhythmmias
cardiac tamponade

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10
Q

how to measure cardiac index (CI)

A

CO divided by BSA

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11
Q

what is systemic vascular resistance

A

peripheral vascular resistance
diameter of blood vessels

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12
Q

arterial BP calculation

A

CO x SVR

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M/S 3 (17 decks)

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