Passive Leg Raising in Term Pregnancy on Hemodynamic Monitoring - Validating With Transthoracic ECHO (LG-ECHO)

Inclusion Criteria: * Term pregnant patients * Singleton pregnancy at ≥37+0 weeks of gestation. * Maternal age between 18 and 45 years. * Hemodynamically stable and in sinus rhythm. * Ability to provide verbal and written informed consent. Exclusion Criteria: * Hypertensive disorders of pregnancy, significant valvular or congenital heart disease, cardiomyopathy, or persistent arrhythmias. * Multiple gestation (i.e., Twin pregnancy and above) * Endocrine or hematologic conditions likely to affect hemodynamics, including diabetes with or without autonomic neuropathy, thyroid storm, or severe anemia (hemoglobin \<8 g/dL). * Active labor with pain or current infusion of uterotonic or vasoactive agents. * Ruptured membranes with frequent contractions or indications for emergent delivery. * Inadequate transthoracic echocardiographic imaging windows at screening. * Emergency or STAT (statim) Cesarean Deliveries