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extravasation |
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extravasation /ex·trav·a·sa·tion/ (ek-strav″ah-za´shun) 1. a discharge or escape, as of blood, from a vessel into the tissues; blood or other substance so discharged. 2. the process of being extravasated. extravasation [ikstrav′əsā′shən] Etymology: L, extra + vas, vessel 1 a passage or escape into the tissues, usually of blood, serum, or lymph. Compare bleeding. 2 passage or escape into tissue of antineoplastic chemotherapeutic drugs. Signs and symptoms may be sudden onset of localized pain at an injection site, sudden redness or extreme pallor at an injection site, or loss of blood return in an IV needle. Tissue slough and necrosis may occur if the condition is severe. Treatment depends on the causative agent. Nursing responsibilities include maintaining the patient IV line, elevating the affected area, applying ice packs, and notifying the physician of the need for antidote injections, if applicable. See also exudate, transudate. extravasate, v. extravasation (ek·stra·v n 1. seeping of blood, lymph, or serum into tissues. 2. seeping of chemotherapeutic drugs into a tissue. extravasation (ekstrav´ n the escape of a body fluid out of its proper place (e.g., blood into surrounding tissues after rupture of a vessel, urine into surrounding tissues after rupture of the bladder). extravasation 1. a discharge or escape, as of blood, from a vessel into the tissues; blood or other substance so discharged. 2. the process of being extravasated. extravasation Medtalk The seepage of fluid–eg, plasma, from a mucocutaneous surface, from underlying capillaries How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Ranulas are pseudocysts of the floor of the mouth that develop as a result of mucus extravasation into the surrounding sublingual soft tissues secondary to sublingual gland trauma or salivary duct obstruction. The thyroid gland displays ill-defined nodules made up of fibrous tissue, damaged thyroid follicular epithelial cells (eosinophilic cytoplasm with round, hyperchromatic nuclei), and extravasation of colloid (figure 1). The Company also offers Empower([R]) Co the only family of CT injectors on the market with patented EDA[TM] technology that can help detect contrast extravasation Co and offers a complete product set for the virtual colonoscopy practitioner. |
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