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From Wikipedia, the free encyclopedia

Hypervolemia
Other namesFluid overload, hypervolaemia, hypervolæmia
A diagram showing the formation of interstitial fluid from the bloodstream
SpecialtyEndocrinology Edit this on Wikidata

Hypervolemia, also known as 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 limit the intake of water, fluids, sodium, and salt.

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Transcription

Signs and symptoms

The excess fluid, primarily salt and water, builds up in various locations in the body and leads to an increase in weight, swelling in the legs and arms (peripheral edema), and/or fluid in the abdomen (ascites). Eventually, the fluid enters the air spaces in the lungs (pulmonary edema) reduces the amount of oxygen that can enter the blood, leading to anemia and causes shortness of breath (dyspnea) or enters pleural space by transudation (pleural effusion which also causes dyspnea), which is the best indicator of estimating central venous pressure is increased. It can also cause swelling of the face. Fluid can also collect in the lungs when lying down at night, possibly making nighttime breathing and sleeping difficult (paroxysmal nocturnal dyspnea).[citation needed]

Complications

Congestive heart failure is the most common result of fluid overload. Also, it may be associated with hyponatremia (hypervolemic hyponatremia).[1]

Causes

Excessive sodium and/or fluid intake:

Sodium and water retention:

Fluid shift into the intravascular space:

Treatment

Treatment includes diuretics, particularly loop diuretics.[4]

See also

References

  1. ^ The MERCK MANUALS > Hyponatremia Last full review/revision May 2009 by James L. Lewis, III, MD
  2. ^ a b c d e f g h i j k l Page 62 (Fluid imbalances) in: Portable Fluids and Electrolytes (Portable Series). Hagerstwon, MD: Lippincott Williams & Wilkins. 2007. ISBN 978-1-58255-678-9.
  3. ^ "Complications of Transfusion: Transfusion Medicine: Merck Manual Professional". Retrieved 2009-02-09.
  4. ^ Claure-Del Granado, Rolando; Mehta, Ravindra L. (December 2016). "Fluid overload in the ICU: evaluation and management". BMC Nephrology. 17 (1): 109. doi:10.1186/s12882-016-0323-6. PMC 4970195. PMID 27484681.

External links

This page was last edited on 28 November 2023, at 01:34
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