18 to 100 years old
general anesthesia, surgery
Two additional non-invasive monitors on your fingers: one to monitor the amount of oxygen in your blood and record how much these measurements change as you breathe in and out, and the second to measure your blood pressure continuously.
Placement of one of two commonly used breathing tubes as is necessary with general anesthesia
Measure your heart function before and after your receive IV fluids at the beginning of your operation.
18 years of age or older
Scheduled for elective surgery requiring general anesthesia and mechanical ventilation
Arterial line and Swan-Ganz catheter placed as part of the scheduled surgical procedure
Patients with surgeries at or around site of sensor placement
Skin abnormalities affecting the sensor placement area
Patients with cardiac arrhythmias
Patients with intracardiac shunts
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