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Hypervolemia, or fluid overload, is the medical condition where there is too much fluid in the blood. The opposite condition is hypovolemia, which is too little fluid volume in the blood. Fluid volume excess in the intravascular compartment occurs due to an increase in total body sodium content and a consequent increase in extracellular body water. The mechanism usually stems from compromised regulatory mechanisms for sodium handling as seen in congestive heart failure (CHF), kidney failure, and liver failure. It may also be caused by excessive intake of sodium from foods, intravenous (IV) solutions and blood transfusions, medications, or diagnostic contrast dyes. Treatment typically includes administration of diuretics and restriction of the intake of water, fluids, sodium, and salt. ==Causes== Excessive sodium and fluid intake: * IV therapy containing sodium〔Page 62 (Fluid imbalances) in: 〕 * As a Transfusion reaction to a rapid blood transfusion.〔 * High intake of sodium〔 Sodium and water retention: *Heart failure〔 *Liver cirrhosis〔 *Nephrotic syndrome〔 *Corticosteroid therapy〔 *Hyperaldosteronism〔 *Low protein intake〔 Fluid shift into the intravascular space: *Fluid remobilization after burn treatment〔 *Administration of hypertonic fluids, e.g. mannitol〔 or hypertonic saline solution *Administration of plasma proteins, such as albumin〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hypervolemia」の詳細全文を読む スポンサード リンク
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