The Question is from neet-zoology chemical-coordincation-and-integration pancreas, and it was created by the author T HARITHA

Question

A patient presents with steatorrhea, hyperglycemia, and abdominal pain.  Further investigation reveals significantly decreased levels of both insulin and pancreatic enzymes. Which of the following is the MOST likely underlying cause of this condition?

T HARITHA · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Pancreatic insufficiency and its manifestations
 **Related Topics**: Exocrine and endocrine functions of the pancreas, cystic fibrosis, diabetes mellitus
 **Prerequisites**: Understanding of pancreatic enzymes (lipase, amylase, protease), insulin's role in glucose metabolism, and the symptoms of pancreatic dysfunction.
## SOLUTION PATHWAY
**Given Information**:
  Steatorrhea (fatty stools), hyperglycemia (high blood sugar), abdominal pain, decreased insulin levels, decreased pancreatic enzyme levels.
  These symptoms indicate a problem with both the exocrine (enzyme production) and endocrine (hormone production, specifically insulin) functions of the pancreas.
**Method & Steps**:
 1. Analyze the symptoms:
  Reasoning: Steatorrhea points to insufficient pancreatic lipase (needed for fat digestion). Hyperglycemia suggests insufficient insulin. Abdominal pain is a common symptom of pancreatic inflammation or dysfunction.
  Formula/Rule: None directly applicable, this is a clinical reasoning problem.
 2. Consider the options:
  Working: Let's evaluate each option in light of the presented symptoms.
  Key Point: We need an option that explains both the decreased insulin (endocrine failure) and decreased pancreatic enzymes (exocrine failure).
 3. Evaluate each option:
  Option A: Tumor affecting alpha cells would primarily affect glucagon (hyperglycemia), not necessarily insulin or pancreatic enzymes. It doesn't fully explain the steatorrhea.
  Option B: Autoimmune destruction of beta cells (insulin-producing cells) would lead to diabetes but not necessarily explain the steatorrhea or decreased pancreatic enzymes. It explains hyperglycemia but not the full clinical picture.
  Option C: Cystic fibrosis affects multiple organs, including the pancreas, leading to decreased enzyme production (exocrine insufficiency) and potentially impacting insulin production (endocrine insufficiency) causing both steatorrhea and hyperglycemia. This fits all the symptoms.
  Option D: While alcohol abuse can cause acute pancreatitis, it doesn't typically result in long-term, significant decreases in both insulin and all pancreatic enzymes. It's more likely to cause temporary enzyme deficiency.
  Result: Cystic fibrosis is the most likely cause.
  Verification: The symptoms and lab findings strongly support cystic fibrosis as the underlying cause.
 ## OPTION ANALYSIS
A :x:  A tumor affecting only alpha cells wouldn't explain the steatorrhea or the decreased insulin levels.
B :x:  Autoimmune destruction of beta cells explains hyperglycemia but not the steatorrhea and decreased pancreatic enzymes.
C ✓: Cystic fibrosis perfectly explains all the presented symptoms, affecting both the exocrine and endocrine functions of the pancreas.
D :x:  Alcohol-induced pancreatitis is usually acute and doesn't typically lead to chronic deficiencies in both insulin and all pancreatic enzymes.
 ## LEARNING AIDS
 **Common Mistakes**:
  1. Focusing solely on hyperglycemia and neglecting the steatorrhea and decreased pancreatic enzymes.
   How to avoid: Consider all the presented symptoms and lab results holistically.
  2. Confusing the roles of alpha and beta cells in the pancreas.
   How to avoid:  Review the functions of different pancreatic islet cells.
 **Quick Tips**:
  1. Remember that the pancreas has both exocrine (enzyme secretion) and endocrine (hormone secretion) functions.
  2. Cystic fibrosis is a multi-system disorder that frequently affects the pancreas.

T HARITHA · Answer

A tumor solely affecting the alpha cells of the Islets of Langerhans

T HARITHA · Answer

Autoimmune destruction specifically targeting beta cells

T HARITHA · Answer

The correct Option is "Cystic fibrosis affecting the pancreas"

T HARITHA · Answer

Excessive consumption of alcohol leading to acute pancreatitis

NEET Zoology Chemical Coordination and Integration Pancreas MCQs

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