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  2. Fecal occult blood - Wikipedia

    en.wikipedia.org/wiki/Fecal_occult_blood

    Fecal occult blood testing (FOBT), as its name implies, aims to detect subtle blood loss in the gastrointestinal tract, anywhere from the mouth to the colon.Positive tests ("positive stool") may result from either upper gastrointestinal bleeding or lower gastrointestinal bleeding and warrant further investigation for peptic ulcers or a malignancy (such as colorectal cancer or gastric cancer).

  3. Gastrointestinal bleeding - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_bleeding

    The presence of bright red blood in stool, known as hematochezia, typically indicates lower gastrointestinal bleeding. Digested blood from the upper gastrointestinal tract may appear black rather than red, resulting in "coffee ground" vomit or melena. [2] Other signs and symptoms include feeling tired, dizziness, and pale skin color. [18]

  4. Heyde's syndrome - Wikipedia

    en.wikipedia.org/wiki/Heyde's_syndrome

    Heyde's syndrome; A stenotic aortic valve: Specialty: Cardiology, general surgery, Hematology: Symptoms: Aortic valve stenosis symptoms: Chest pain (angina) or tightness Shortness of breath, especially during exertion or when lying down Fatigue or weakness Irregular heartbeat or heart palpitations Dizziness or fainting episodes Gastrointestinal bleeding symptoms: Occult (hidden) or overt ...

  5. Blood in stool - Wikipedia

    en.wikipedia.org/wiki/Blood_in_stool

    Blood in stool looks different depending on how early it enters the digestive tract—and thus how much digestive action it has been exposed to—and how much there is. The term can refer either to melena, with a black appearance, typically originating from upper gastrointestinal bleeding; or to hematochezia, with a red color, typically originating from lower gastrointestinal bleeding. [6]

  6. Colonoscopy - Wikipedia

    en.wikipedia.org/wiki/Colonoscopy

    The examination of the colon, to rule out a lesion contributing to blood loss, along with an upper gastrointestinal endoscopy (gastroscopy) to rule out oesophageal, stomach, and proximal duodenal sources of blood loss. Fecal occult blood is a quick test which can be done to test for microscopic traces of blood in the stool. A positive test is ...

  7. Systemic vasculitis - Wikipedia

    en.wikipedia.org/wiki/Systemic_vasculitis

    [3] Often, the upper respiratory tract infection is the initial sign of Cogan's syndrome. [3] Ocular and audio-vestibular symptoms are typical indicators. Non-syphilitic interstitial keratitis (IK), uveitis, retinal vasculitis, conjunctivitis, scleritis, tinnitus, hearing loss, and vertigo are among the range of ocular manifestations. [32]

  8. Occult blood - Wikipedia

    en.wikipedia.org/wiki/Occult_blood

    Occult blood may refer to: Fecal occult blood, blood present in the feces that is not visibly apparent; Hematuria, the presence of red blood cells in the urine

  9. Abdominal pain - Wikipedia

    en.wikipedia.org/wiki/Abdominal_pain

    Abdominal pain, also known as a stomach ache, is a symptom associated with both non-serious and serious medical issues. Since the abdomen contains most of the body's vital organs, it can be an indicator of a wide variety of diseases.