Exudate


Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.

exudate

[′ek·syü‚dāt]
(medicine)
A proteinaceous material that passes through blood vessel walls into the surrounding tissue in inflammation or a superficial lesion.
Any substance that is exuded.

Exudate

 

fluid exuded by small blood vessels during an inflammation that contains protein, leukocytes, erythrocytes, minerals, cellular elements and, frequently, the microbes that caused the inflammation. Any inflammation may give rise to an exudate, which will saturate the surrounding tissues or collect in the body cavities. By compressing the surrounding organs and tissues an exudate may interfere with their function. An exudate helps to spread the infection when it escapes into the tissues from the focus of inflammation. There are serous, purulent, bloody, and fibrinous exudates, depending on the dominant elements. If treated promptly and correctly, an exudate is completely resorbed without leaving any changes after it. An exudate must be distinguished from edematous fluid (transudate), which collects in the body cavities and tissue interstices following the development of an edema.

References in periodicals archive ?
Table 6 shows comparison of sensitivity, specificity, positive predictive value and negative predictive value when using Light's criteria to differentiate exudate and transudate and when using pleural fluid cholesterol to differentiate exudate and transudate among various studies.
Probabilistic Neural Network(PNN), Decision Tree (DT) and Support Vector Machine(SVM) For Optimization Techniques Genetic Algorithm and Particle Swarm Optimization [4] Diabetic Machine Learning Classifiers retinopathy [3] Microaneurysms Hybrid Classifier combines Gaussian Mixture Mode(GMM) and Support Vector Machine(SVM) [5] Bright Lesions Linear Support Vector Machine(SVM) [6] Hard Exudates Dynamic threshold, edge detection Paper Database Obtained Result No [1] DRIVE Obtained Accuracy of DiaRetDB1 DRIVE=100% DMED DiaRetDB 1=100% STARE DMED=98.
On otoscopic examination there was purulent exudates in suppurative otitis externa (Fig.
Based on the efficiency of the pH of exudate test in some species, this study aims to adjust its methodology to crambe seeds, allowing to safely and quickly identify the vigor levels of lots.
6 or greater is consistent with an exudate, generally due to the presence of bile.
Dengue fever patients may have fundus signs such as retinal hemorrhages, macular edema, soft exudates, optic disc edema, vascular sheathing and retinochoroiditis and anterior uveitis.
1] It is evident that the sensitivity of diagnostic parameters of Light's criteria as isolated tests is low in case of transudates, which may lead to misclassification of a transudate as an exudate.
In this work exudate types are categorized by their consistency: melosa (pines), resinous (eucalyptus, cedro, acacia), gummy (araucaria), gelatinous (unknown tree), viscose (aguacate, nispero, ceibo) and frothy (aguacate, escobo) (Figs.
Wound exudate levels of the inflammatory markers interleukin-6 and -10 also were lower.