Physiology of Nutrient Absorption
40 Questions
4 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What clinical finding is associated with blind loop syndrome?

  • Hypocalcemia
  • Steatorrhea (correct)
  • Intestinal adaptation
  • Mucosal hyperplasia
  • What clinical manifestation is seen in acute mesenteric ischemia?

  • Steatorrhea
  • Hypocalcemia (correct)
  • Mucosal hyperplasia
  • Intestinal adaptation
  • Which clinical finding is characteristic of short bowel syndrome?

  • Malnutrition (correct)
  • Mucosal hyperplasia
  • Steatorrhea
  • Hypocalcemia
  • In small intestine obstruction, which clinical finding is more likely to be associated with a proximal (high) obstruction?

    <p>Frequent and early vomiting</p> Signup and view all the answers

    What clinical manifestation may be observed in blind loop syndrome due to fatty acids entering the colon?

    <p>Diarrhea</p> Signup and view all the answers

    Which blood test finding is more likely to be detected in cases of small intestine obstruction?

    <p>Electrolyte abnormalities</p> Signup and view all the answers

    Which clinical finding is associated with malabsorption of carbohydrates and proteins?

    <p>Malnutrition</p> Signup and view all the answers

    What imaging finding is characteristic of strangulation in small intestine obstruction?

    <p>Free air (perforation)</p> Signup and view all the answers

    Which clinical finding is more likely to be associated with distal (low) small intestine obstruction?

    <p>Colicky pain</p> Signup and view all the answers

    What investigation is used to identify bowel ischemia in cases of small intestine obstruction?

    <p>CT with contrast</p> Signup and view all the answers

    What is the clinical presentation of acute mesenteric ischemia (AMI)?

    <p>Sudden diffuse abdominal pain out of proportion to the clinical exam</p> Signup and view all the answers

    Which imaging technique is commonly used to diagnose acute mesenteric ischemia?

    <p>CT/MRI angiography</p> Signup and view all the answers

    What is the initial treatment for acute mesenteric ischemia?

    <p>Fluid resuscitation</p> Signup and view all the answers

    What is the recommended surgical intervention for acute mesenteric ischemia with necrotic bowel?

    <p>Necrotic bowel resection</p> Signup and view all the answers

    What is the most appropriate antibiotic management for acute mesenteric ischemia?

    <p>Metronidazole</p> Signup and view all the answers

    What is the initial treatment for acute mesenteric ischemia?

    <p>Fluid resuscitation</p> Signup and view all the answers

    What type of pain is typically associated with acute mesenteric ischemia?

    <p>Non-specific diffuse abdominal pain</p> Signup and view all the answers

    What is the most likely clinical finding in a patient with small intestine obstruction due to strangulation?

    <p>Early shock</p> Signup and view all the answers

    What is the preferred imaging modality for evaluating acute mesenteric ischemia?

    <p>CT angiography</p> Signup and view all the answers

    Which blood test result is most likely to be observed in a patient with small intestine obstruction due to strangulation?

    <p>Lactic acidosis</p> Signup and view all the answers

    In the case of necrotic bowel, what is the recommended surgical procedure?

    <p>Necrotic bowel resection</p> Signup and view all the answers

    What imaging finding is most indicative of small intestine obstruction due to strangulation?

    <p>Free intraperitoneal fluid</p> Signup and view all the answers

    What is the most common cause of acute mesenteric ischemia?

    <p>Atherosclerosis</p> Signup and view all the answers

    What is the recommended surgical treatment for a patient with small intestine obstruction suspected to be due to strangulation?

    <p>Resection of non viable intestine and anastomosis</p> Signup and view all the answers

    What is the most appropriate initial treatment for a patient with small intestine obstruction suspected to be due to strangulation?

    <p>Fluid and electrolyte resuscitation</p> Signup and view all the answers

    What is the primary method of absorption for monosaccharides in the jejunum and proximal ileum?

    <p>Active transportation</p> Signup and view all the answers

    In short bowel syndrome, if more than 1m of distal ileum is resected, what malabsorption occurs?

    <p>Bile salt malabsorption</p> Signup and view all the answers

    What is the clinical finding associated with blind loop syndrome resulting from bacterial deconjugation and dihydroxylation of bile salts?

    <p>Hypocalcemia</p> Signup and view all the answers

    What is the predominant cause of acute mesenteric ischemia?

    <p>Arterial embolism</p> Signup and view all the answers

    What is the survival rate at 5 years for patients with acute mesenteric ischemia?

    <p>18 - 50%</p> Signup and view all the answers

    Which of the following blood test findings is characteristic of strangulation in small intestine obstruction?

    <p>Presence of free intraperitoneal fluid</p> Signup and view all the answers

    What is a characteristic imaging finding indicative of perforation in small intestine obstruction?

    <p>Free air on plain abdominal film</p> Signup and view all the answers

    Which of the following clinical findings is most likely associated with perforation in small intestine obstruction?

    <p>Early shock</p> Signup and view all the answers

    In perforation associated with small intestine obstruction, what imaging finding suggests the presence of free air?

    <p>Gas within bowel wall on CT with contrast</p> Signup and view all the answers

    Which blood test finding is characteristic of perforation in small intestine obstruction?

    <p>Marked leukocytosis</p> Signup and view all the answers

    What imaging finding is characteristic of perforation with free air in small intestine obstruction?

    <p>Gas within bowel wall on CT with contrast</p> Signup and view all the answers

    In cases of perforation associated with small intestine obstruction, what blood test finding indicates an inflammatory response?

    <p>Marked leukocytosis</p> Signup and view all the answers

    Which clinical finding is most likely to be associated with perforation in small intestine obstruction?

    <p>Abdominal tenderness and rigidity</p> Signup and view all the answers

    What imaging finding is indicative of free air due to perforation in small intestine obstruction?

    <p>Air-fluid levels on CT with contrast</p> Signup and view all the answers

    What clinical finding is most likely to be observed in cases of perforation associated with small intestine obstruction?

    <p>Early shock</p> Signup and view all the answers

    Study Notes

    Blind Loop Syndrome

    • Associated with the presence of bacterial overgrowth leading to malabsorption.
    • Clinical findings may include deconjugation and dihydroxylation of bile salts.
    • Fatty acids entering the colon due to malabsorption may cause steatorrhea.

    Acute Mesenteric Ischemia

    • Presents with severe abdominal pain, often out of proportion to physical examination findings.
    • Commonly diagnosed using CT imaging.
    • Initial treatment includes fluid resuscitation and broad-spectrum antibiotics.
    • Surgical intervention is indicated for necrotic bowel, often involving resection of affected areas.
    • Predominant causes include embolism or thrombosis of mesenteric vessels.
    • 5-year survival rate for patients is low, reflecting the severity of the condition.

    Short Bowel Syndrome

    • Results in malabsorption when more than 1 meter of distal ileum is resected, leading to impaired absorption of bile salts and vitamin B12.

    Small Intestine Obstruction

    • High (proximal) obstruction is more likely to present with vomiting and dehydration.
    • Low (distal) obstruction may result in more pronounced abdominal distension and constipation.
    • Strangulation may be indicated by the imaging finding of ischemia or lack of blood flow.
    • Blood tests often reveal elevated lactate levels suggesting ischemia.

    Imaging Findings

    • Strangulation is characterized by the presence of free air or fluid on imaging studies.
    • Perforation can be indicated by free air under the diaphragm on X-ray or CT scan.
    • A characteristic imaging finding for obstruction includes dilated loops of bowel.

    Clinical Manifestations

    • Patients with strangulation due to small intestine obstruction often experience severe cramping and signs of peritonitis.
    • Clinical findings in perforation include rebound tenderness and guarding.
    • Indicators of an inflammatory response in perforation cases may include elevated white blood cell counts and CRP levels.

    Diagnosis and Treatment

    • Bowel ischemia can be assessed via CT or MRI.
    • Broad-spectrum antibiotics are crucial in managing acute mesenteric ischemia alongside surgical interventions.
    • The initial management should focus on stabilization and addressing the underlying cause of obstruction.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Small Bowel 2 PDF

    Description

    Test your knowledge of the physiological processes involved in the absorption of carbohydrates, proteins, fats, and vitamins in the gastrointestinal tract. This quiz covers the breakdown of macronutrients by enzymes and their absorption mechanisms in different parts of the small intestine.

    More Like This

    Use Quizgecko on...
    Browser
    Browser