The purpose of this study is to test how practical it is to use the Ultrasonic Cardiac Output Monitor (USCOM), an FDA-approved device, on oncology patients (specifically those with blood cancers). Additionally, the researchers will learn if the USCOM gives additional information about patients' conditions when their blood pressures drop and they are treated with intravenous fluids.
English speaker Diagnosis of blood dyscrasia, hematopoietic malignancy, or condition that may requires HSCT
Exclusion Criteria:
Obstruction of the suprasternal notch that prevents placing the USCOM probe in the correct location Tracheostomy or endotracheal tube that prevents placing USCOM probe in the correct location Inability to lie flat, on left or right side, or with the head of bed at a 30 degree angle for the USCOM exam (ex. due to respiratory distress or physiologic reasons) Impairment by a psychiatric, cognitive, or physiologic disorder that limits ability to understand explanation of study and give consent
