Cytology and biopsy are essential for accurate diagnosis of cancer in the gastrointestinal tract. A combination of washing, brushing, and biopsy technics yielded positive diagnoses in 100% of cases of cancer of the esophagus, 93% in stomach cancer, and 100% in cancer of the colon.In the stomach, washing was superior, but in both the esophagus and colon, brushing technics were more accurate.he other patient had a positive brushing. Of the 49 carcinomas, 3 had only positive surgical specimens. Colonic cytologies in 42 patients revealed positive washings in 35, positive brushings in 41, and positive biopsies in 32 of the 42 patients studied. Table II Positive Specimens Obtained from 257 Patients.
Updraft Nebulizers. Smiths Medical provides one of the most extensive lines of small volume nebulizers available, proving once again that Smiths Medical offers more respiratory solutions. Our updraft nebulizer, with the universal enhanced mouthpiece for oral comfort, can be used with the patient lying down or sitting up. Updraft Nebulizers.
Î³-Hydroxybutyric acid (GHB), also known as 4-hydroxybutanoic acid, is a naturally occurring neurotransmitter and a psychoactive drug. Chemically closely related to GABA, it acts on the GABA receptor and on the GHB receptor. GHB has been used in a medical setting as a general anesthetic, for cataplexy, narcolepsy, and alcoholism. It is also used illegally as an intoxicant, to try to increase athletic performance, and as a date rape drug. It is commonly used in the form of a salt, such as sodium Î³-hydroxybutyrate (Na.GHB, sodium oxybate, or Xyrem) or potassium Î³-hydroxybutyrate (K.GHB, potassium oxybate). GHB is also produced as a result of fermentation, and is found in small quantities in some beers and wines, beef and small citrus fruits.