Symptoms and Mechanisms of Gastrointestinal Diseases Quiz

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Questions and Answers

What is the main function of the gastrointestinal tract?

  • Synthesis of enzymes
  • Synthesis of antibodies
  • Synthesis of hormones (correct)
  • Synthesis of neurotransmitters

In the context of gastrointestinal symptoms, what do 'Alarm' symptoms indicate?

  • Symptoms that suggest psychological issues
  • Symptoms associated with non-organic consultations
  • Symptoms that are mild and can be ignored
  • Symptoms that may signify significant gastrointestinal pathology (correct)

What is stomatitis?

  • Inflammation in the lungs
  • Inflammation of the liver
  • Inflammation of the skin
  • Inflammation in the mouth (correct)

Why is recognizing organic diseases important among gastrointestinal symptoms?

<p>To distinguish them from non-organic symptoms (B)</p> Signup and view all the answers

What is the role of the enteric nervous system in the gastrointestinal tract?

<p>Controlling gut function and communicating with the nervous systems (A)</p> Signup and view all the answers

Why are malnutrition, viral and bacterial infections, and parasitic infestations significant in developing countries concerning gastrointestinal diseases?

<p>They further exacerbate the gastrointestinal disease picture (A)</p> Signup and view all the answers

What is the primary diagnostic modality for high-grade bowel obstruction?

<p>CT (C)</p> Signup and view all the answers

Which imaging technique is sensitive for small amounts of gas from a perforated viscus?

<p>CT (A)</p> Signup and view all the answers

When should kidney function be assessed before using intravenous contrast in imaging studies?

<p>Before a CT with contrast (A)</p> Signup and view all the answers

Which imaging modality provides an alternative to colonoscopy for diagnosing colon mass lesions?

<p>CT colonography (C)</p> Signup and view all the answers

What type of endoscopic procedure involves a gastroscope with an ultrasound probe at the tip?

<p>Endoscopic ultrasound (EUS) (A)</p> Signup and view all the answers

Which imaging technique is widely used for cancer staging and guiding biopsies of tumors or lymph nodes?

<p>CT (B)</p> Signup and view all the answers

What type of diarrhea is characterized by mucosal invasion and presence of fecal leukocytes?

<p>Inflammatory bloody diarrhea (C)</p> Signup and view all the answers

Which of the following viruses can cause acute diarrhea without mucosal invasion and presence of fecal leukocytes?

<p>Rotavirus (C)</p> Signup and view all the answers

What is a common cause of acute diarrhea that leads to mortality, especially in children in developing countries?

<p>Bacterial infections (B)</p> Signup and view all the answers

Which parasite infection is associated with inflammatory bloody diarrhea?

<p>Entamoeba histolytica (A)</p> Signup and view all the answers

How can death due to acute diarrhea with fluid and electrolyte depletion be prevented?

<p>Fluid repletion by oral or intravenous routes (D)</p> Signup and view all the answers

What distinguishes toxin-induced food poisoning from other causes of acute diarrhea?

<p>Mucosal invasion absent (C)</p> Signup and view all the answers

What is the characteristic feature of the fever in the disease described?

<p>Undulating fever with bouts every 3-4 weeks (B)</p> Signup and view all the answers

How is the disease primarily transmitted to humans?

<p>Direct contact through skin abrasions with infected animals (A)</p> Signup and view all the answers

Which method is considered the method of choice for laboratory diagnosis early in the disease?

<p>Blood culture (C)</p> Signup and view all the answers

How is Brucella differentiated from Salmonella in culture?

<p>By urease test (D)</p> Signup and view all the answers

Which type of antibodies are differentiated using ELISA in the serological diagnosis of the disease?

<p>IgM and IgG antibodies (C)</p> Signup and view all the answers

What type of test is the Brucellin test based on?

<p>Intradermal test (C)</p> Signup and view all the answers

What causes impaired micelle formation in the small intestine due to bacterial overgrowth?

<p>Deconjugation of bile salts by cholylamidases (B)</p> Signup and view all the answers

What distinguishes bacterial overgrowth from tropical sprue regarding serum vitamin levels?

<p>Low serum vitamin B12 levels but normal or high folate levels (C)</p> Signup and view all the answers

What is a structural cause that can lead to bacterial overgrowth in the small intestine?

<p>Surgical Ileocecal valve resection (C)</p> Signup and view all the answers

How does bacterial overgrowth affect the absorption of fats and fat-soluble vitamins?

<p>Causes malabsorption due to decreased bile salt concentration (C)</p> Signup and view all the answers

Which condition results in the degradation of brush-border disaccharidases due to bacterial overgrowth?

<p>Scleroderma (B)</p> Signup and view all the answers

How can hypochlorhydria contribute to bacterial overgrowth?

<p>Promoting anaerobic bacterial growth (B)</p> Signup and view all the answers

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