CVP	Central venous pressure
PAC	Pulmonary artery catheter
CO	Cardiac output
CI	Cardiac index
FTc	Corrected flow time
POCUS	Point-of-care-ultrasound
ΔCDPV	Change in respiratory peak systolic velocity
PWD	Pulsed wave Doppler
LVOT	Left ventricular outflow tract
TVI	Time velocity integral
CBF	Carotid blood flow