Transudate

Transudate

Transudate is extravascular fluid with low protein content and a specific gravity <1.012. It has low nucleated cell counts (less than 500 to 1000 /microlit) and the primary cell types are mononuclear cells: macrophages, lymphocytes and mesothelia cells. For instance, an ultrafiltrate of blood plasma is transudate. It results from increased fluid pressures or diminished osmotic forces in the plasma.

In females, transudation is a method of lubrication during sexual arousal.

Transudate vs. exudate

Levels of lactate dehydrogenase (LDH) can be used to distinguish transudate from exudate.cite web |url=http://meded.ucsd.edu/isp/1994/im-quiz/pleuaden.htm |title=IM Quiz: Pleural Adenocarcinoma |format= |work= |accessdate=]

Transudate usually appears more clear than exudate.cite web |url=http://library.med.utah.edu/WebPath/INFLHTML/INFL062.html |title=Inflammation |format= |work= |accessdate=]

Pathology

The most common causes of pathologic transudate include embolism, left ventricular heart failure, and cirrhosis. (Cirrhosis leads to hypoalbuminaemia and decreasing of osmotic pressure that causes edema.)

References


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  • transudate — [tran′so͞o dāt΄, tran′syo͞odāt΄] n. 〚ModL transudatus, pp. of transudare〛 something transuded * * * tran·su·date (trăn so͞oʹdāt , syo͞oʹ , trănʹso͝o dāt , syo͝o ) also tran·su·da·tion (trăn so͝o dāʹshən, syo͝o ) n. 1. A product of the process of… …   Universalium

  • transudate — [tran′so͞o dāt΄, tran′syo͞odāt΄] n. [ModL transudatus, pp. of transudare] something transuded …   English World dictionary

  • Transudate — A fluid that passes through a membrane which filters out much of the protein and cellular elements to yield a watery solution. A transudate is due to increased pressure in the veins and capillaries pressure forcing fluid through the vessel walls… …   Medical dictionary

  • transudate — noun Date: 1876 a transuded substance …   New Collegiate Dictionary

  • transudate — Plasma derived fluid that accumulates in tissue and causes oedema. A result of increased venous and capillary pressure, rather than altered vascular permeability (which leads to cellular exudate formation) …   Dictionary of molecular biology

  • transudate — noun a) The product of transudation. b) A substance that transudes …   Wiktionary

  • transudate — n. oozing, exudation …   English contemporary dictionary

  • transudate — tran·su·date …   English syllables

  • transudate — noun a substance that transudes • Syn: ↑transudation • Hypernyms: ↑discharge, ↑emission …   Useful english dictionary

  • Ascites — Classification and external resources The major signs and symptoms of heart failure. (Ascites labeled near center.) ICD 10 R …   Wikipedia

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