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The content of the vomitus (vomit) may be of medical interest. Fresh blood in the vomit is termed hematemesis ("blood vomiting"). Altered blood bears resemblance to coffee grounds (as the iron in the blood is oxidized ) and, when this matter is identified, the term coffee-ground vomiting is used.
Vomiting dark blood. Causes. Gastritis. Gastrointestinal bleeding. Stomach cancer. Yellow fever. Coffee ground vomitus refers to a particular appearance of vomit. Within organic heme molecules of red blood cells is the element iron, which oxidizes following exposure to gastric acid. This reaction causes the vomitus to look like ground coffee.
Fecal vomiting or copremesis is a kind of vomiting wherein the material vomited is of fecal origin. It is a common symptom of gastrojejunocolic fistula and intestinal obstruction in the ileum. [1][2] Fecal vomiting is often accompanied by gastrointestinal symptoms, including abdominal pain, abdominal distension, dehydration, and diarrhea. [2][3 ...
Nausea. A 1681 painting depicting a person vomiting. Specialty. Gastroenterology. Nausea is a diffuse sensation of unease and discomfort, sometimes perceived as an urge to vomit. [1] It can be a debilitating symptom if prolonged and has been described as placing discomfort on the chest, abdomen, or back of the throat.
Chemotherapy-induced nausea and vomiting (CINV) is a common side-effect of many cancer treatments. Nausea and vomiting are two of the most feared cancer treatment-related side effects for cancer patients and their families. In 1983, Coates et al. found that patients receiving chemotherapy ranked nausea and vomiting as the first and second most ...
Vomiting is a common condition affecting about 50% of pregnant women, with another 25% having nausea. [53] However, the incidence of HG is only 0.3–1.5%. [ 4 ] After preterm labor, hyperemesis gravidarum is the second most common reason for hospital admission during the first half of pregnancy. [ 16 ]
Hematemesis is the vomiting of blood. [1] This is usually vomit that contains bright red blood. [2] Coffee ground vomiting is similar to hematemesis, but is distinct in not involving bright red blood. [3] Hematemesis must be differentiated from hemoptysis (coughing up blood) and epistaxis (nosebleed). [4]
Chemoreceptor trigger zone. The chemoreceptor trigger zone (CTZ) is an area of the medulla oblongata that receives inputs from blood -borne drugs or hormones, and communicates with other structures in the vomiting center to initiate vomiting. The CTZ is located within the area postrema, which is on the floor of the fourth ventricle and is ...