Intravascular volume status

In medicine, intravascular volume status refers to the volume of blood in a patient's circulatory system, and is essentially the blood plasma component of the overall volume status of the body, which otherwise includes both intracellular fluid and extracellular fluid. Still, the intravascular component is usually of primary interest, and volume status is sometimes used synonymously with intravascular volume status. In medicine, intravascular volume status refers to the volume of blood in a patient's circulatory system, and is essentially the blood plasma component of the overall volume status of the body, which otherwise includes both intracellular fluid and extracellular fluid. Still, the intravascular component is usually of primary interest, and volume status is sometimes used synonymously with intravascular volume status. It is related to the patient's state of hydration, but is not identical to it. For instance, intravascular volume depletion can exist in an adequately hydrated person if there is loss of water into interstitial tissue (e.g. due to hyponatremia or liver failure). Volume contraction of intravascular fluid (blood plasma) is termed hypovolemia, and its signs include, in order of severity: Signs of intravascular volume overload (high blood volume) include: For the clinical assessment of intravascular blood volume, the BVA-100, a semi-automated blood volume analyzer device that has FDA approval, determines the status of a patient’s blood volume based on the Ideal Height and Weight Method. Using a patient’s ideal weight and actual weight, the percent deviation from the desirable weight is found using the following equation: ± %  Desirable Weight = Actual Weight − Desirable Weight Desirable Weight × 100 {displaystyle pm \%{ ext{ Desirable Weight}}={frac {{ ext{Actual Weight}}-{ ext{Desirable Weight}}}{ ext{Desirable Weight}}} imes 100} Using the deviation from desirable weight, the BV ratio (ml/kg), i.e. Ideal Blood Volume, can be determined.The machine was tested in clinical studies for the treatment of a broad range of medical conditions related to Intravascular Volume Status, such as anemia, congestive heart failure, sepsis, CFS, Hyponatremia, Syncope and more. This tool for measuring blood volume may foster improved patient care as both a stand-alone and complementary diagnostic tool as there has been a statistically significant increase in patient survival. The most common cause of hypovolemia is diarrhea or vomiting. The other causes are usually divided into renal and extrarenal causes. Renal causes include overuse of diuretics, or trauma or disease of the kidney. Extrarenal causes include bleeding, burns, and any causes of edema (e.g. congestive heart failure, liver failure).