Hemodynamics Flashcards
What is the cardiac index goal?
> 2.2 L/min/m2
What is the ejection fraction goal?
> 40%
What is the CVP goal?
8 - 12 mmHg
What is the SVR goal?
800-1200
What is the SvO2 goal?
> 65%
What is the calculation for blood pressure?
BP = CO x SVR
What is the calculation for MAP?
MAP = (2DBP + SBP) / 3
What is the calculation for cardiac output?
CO = HR x SV
What is cardiac output?
The amount of blood ejected from the left ventricle within one minute
Avg is 4 - 8 liters/minute
What is the cardiac index? What is the calculation?
It is the cardiac output adjusted for body surface area.
CI = CO/BSA
What are the effects of IV fluids?
IV fluids -> increase preload -> increase SV -> increase CO -> increase BP
What are the effects of inotropes?
Inotropes -> increase contractility -> increase SV -> increase CO -> increase BP
Starlings Law states…
That the greater the stretch, the more forceful the contractility.
What are the effects of vasopressors?
Vasopressors -> increase stroke volume -> increase CO -> increase BP
What are common drugs that cause phlebitis and extravasation?
Potassium, calcium, amiodarone, norepinephrine
What antiseptics are used to decrease infection when placing a CVC?
Betadine
2% aqueous chlorhexidine gluconate
What are the mail purposes of CVCs?
Monitor CVP and ScvO2
Admin of drugs that may cause phlebitis or extravasation
What are the main purposes of an arterial line (art line)?
Obtaining ABGs
Invasive blood pressure monitoring
What are the main purposes in using a PAC line?
CVP
SVR
CI/CO
CardioQ peaks and base meanings
Taller peaks = better contractility
Wider bases = better volume status
What are the three types of hemodynamic shocks?
1 - pump (cardiogenic-heart)
2 - fluid (hypovolemic)
3 - tubing (distributive - vessels)
What is the main clinical feature of cardio genie shock?
Decreases CO
What is the main clinical feature of hypovolemic shock?
Decreases CVP
What is the main clinical feature of distributive shock?
Decreased SVR
