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BV%blood volume change
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With the adoption of blood volume monitoring, by which [O.sub.2] Sat and Hct are measured continually and percent blood volume change is calculated continually, it is possible to ascertain the relationship between blood pressure, blood volume, and [O.sub.2] Sat.
This result suggests that the total blood volume change for each heartbeat decreased in the group with the higher level of HbA1c.
PPG is an optical non-invasive technique that detects and measures blood volume changes in the peripheral vessels of different body parts (e.g., fingers, earlobes, toes, etc.) and is often used in clinical research (ALLEN, 2007).
Measurement of relative blood volume changes during haemodialysis: Merits and limitations.
A study by Jain and colleagues (2001) concluded that NIVM with blood volume change less than 8% is safe in the first hour of RRT.
EG completed the 3-hour treatment with a UFR of 2,000 ml/hour and a total blood volume change of ,5%.
The new technique, developed by researchers in VCU's Reanimation Engineering Shock Center (VCURES), determines CVP by monitoring blood volume changes in the arm in response to externally applied circumferential pressure to the brachial vein -- the large vessel in the arm that carries blood between the elbow and shoulder back to the heart.
Impedance plethysmography is a method of detecting blood volume changes, in part by measuring changes in electrical resistance.
This study showed how skin blood volume changes due to the position change from supine to lateral.
It has been shown that individual dynamic properties of blood volume changes can be obtained by this method, but its measure of absolute value of stroke volume is controversial [1 5].
Some authors believed that although the BVM is a non-invasive, easy to perform procedure, its main applicability in the clinical setting is to detect blood volume changes during UF and thereby predict IDH (Kuhlmann, Zhu, Seibert, & Levin, 2005) .
One limitation of continuous wave NIRS is that absolute oxygen uptake and blood volume changes of the tissue cannot be quantified because the path length of the signal cannot be determined [1].