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Misc. Lab Diagnostics
comprehensive stool diagnosis
diagnoses

definition

Comprehensive Stool and Digestive Analysis

The Comprehensive Stool and Digestive Analysis (CSDA) is a battery of laboratory tests specifically designed to evaluate intestinal function and digestive capacity as well as intestinal status.

Each stool sample is evaluated in the following areas:
• Digestive Capacity: The CSDA indicates how well food is being digested and absorbed. Fat, carbohydrate, and protein digestion, as well as indications of food allergies, are analyzed. Gastric hypochlorhydria and pancreatic insufficiency can be identified.
• Intestinal Function: The CSDA gives information in the following areas: intestinal inflammation, occult blood, intestinal hypermobility.
• Microbial Status: Each stool sample is cultured, with predominant organisms being isolated and identified. This procedure determines the presence of normal and pathogenic flora. Every stool sample is also examined for the presence of ova and parasites.
• Colon Cancer Risk: An inverse correlation exists between levels of stool butyric acid and colon cancers.

Clinical applications:
• Patients with chronic intestinal complaints, irritable bowel, spastic colon, gas, indigestion, bloating, etc.
• As malabsorption and hypochlorhydria are a common occurrence in the elderly, a screening CSDA in this age group can be very revealing.

Patients with a history of prolonged antibiotic use.

Test Collection:
The patient is asked to eat six consecutive meals with the following foods in each meal:
Meat: either red meat, fish, poultry, or lamb
Vegetables: either raw or cooked
Starch: either potato, rice, or sweet potato
Bread: either white, wheat, rice, or rye

Evaluation Parameters

The following areas are commonly looked at:
• Microscopic examination: fatty acids, starch, undigested meat fiber, excess undigested vegetable cells and fiber, macrophages, red blood cells, and white blood cells
• Stool chemistry: pH, bile, occult blood, urobilinogen, trypsin, butyric acid
• Bacteriology: e. coli, acidophilus, other “normal” flora

(Meridian Valley Clinical Laboratory)


footnotes