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Questions and Answers
Which stool color is associated with normal conditions?
Which stool color could indicate liver or biliary disease?
What medical conditions are indicated by yellow stool?
Which stool color may suggest lower GI bleeding?
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What stool color may indicate an upper GI bleeding issue?
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Which solution is commonly used to preserve stool specimens?
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Which of the following is NOT a component of macroscopic examination of stool specimens?
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What color change in stool might indicate diseases of the pancreas or malabsorption?
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Which solution is specifically mentioned for stool preservation besides formalin?
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During macroscopic examination, what should be observed for the presence of parasites?
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Study Notes
Stool Color and Potential Causes
- Normal stool color is brown.
- Yellow stool can be caused by diseases of the pancreas, malabsorption, celiac disease, cystic fibrosis, or Giardia infection.
- Clay, pale yellow, or white stool suggests liver or biliary disease, indicating a lack of bile in the stool.
- Black stool is a sign of upper gastrointestinal (GI) bleeding.
- Red stool points to lower GI bleeding.
Stool Specimen Preservation Solutions
- 10% formalin
- Potassium dichromate
- Polyvinyl alcohol (PVA)
- Normal saline 0.85%
Macroscopic Examination of Stool
Includes assessment of:
- Color
- Odor
- Consistency
- Naked eye parasites
- Blood
- Mucous
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Description
Explore the various causes of stool color variations and learn about the macroscopic examination of stool samples. This quiz covers potential medical conditions indicated by stool color, specimen preservation methods, and important characteristics to assess during stool examination.
