hemodynamics basics

CVP/RAP measures

Preload - amount of blood in ventricles at diastole

CVP/RAP normal value

2-6

CVP/RAP cause for high

CHF, volume overload

CVP/RAP high tx

lasix, resus in trauma, increase PEEP

CVP/RAP causes for low

shock states, FVD

CVP/RAP low tx

fluids

PAP measures what

Measures a sys and diastolic pressure in the pulmonary artery; L side info

PAP normal value

S: 20-30, D: 10-15

PAP causes for high

Pulm HTN, ARDS, fluld overload, L ventricle fallure

PAP high tx

treat the underlying cause

PAOP measures what

Fluid volume status L side of heart

PAOP normal values

8-12

PAOP cause for high

FVO

PAOP high tx

treat underlying cause

CCO normal values

CO: 4-8 CI: 2.5-4.2

CCO high causes

FVO, tachycardia

CCO high tx

diuretics

CCO low causes

FVD, bradycardia, tachycardia, shock, HF

CCO low tx

fluids or blood; treat HF

PAOP low causes

hypovolemia, vasodilation

PAOP low tx

fluids then vasopressors

SVR measures

Resistance ventricles need to overcome to pump (dilation/constriction)

SVR normal value

800-1200

SVR high cause

Vasoconstriction, vasospasm, hypertension

SVR high tx

vasodilator- nitro, beta blocker, nicardipine

SVR low causes

vasodilation, low BP

SVR low tx

fluids then pressor