Stool For Culture And Sensitivity

Function

A Stool Culture and Sensitivity test is used to identify harmful bacteria (pathogens) in the lower digestive tract. The 'Culture' part of the test involves placing the stool sample in a medium that encourages the growth of bacteria. The 'Sensitivity' part involves testing any grown pathogens against various antibiotics to see which medication will most effectively kill the infection.

Why it is Ordered

This test is essential for patients suffering from severe or persistent diarrhea, bloody stools, abdominal cramping, or fever. It is particularly important if the patient has recently traveled internationally, consumed potentially contaminated food or water, or has been in contact with others who have similar symptoms. It helps distinguish between viral gastroenteritis (which does not require antibiotics) and bacterial infections (which might).

Associated Conditions

• Salmonellosis: Often caused by contaminated poultry or eggs.
• Shigellosis: A highly contagious bacterial infection causing severe diarrhea.
• Campylobacter Infection: One of the most common causes of 'food poisoning.'
• E. coli O157:H7: A specific strain that can cause severe intestinal damage.

Summary

While the human gut is full of 'good' bacteria (normal flora), this test focuses specifically on identifying 'invaders.' By determining the 'sensitivity' of the bacteria to drugs, physicians can avoid the use of ineffective antibiotics, which helps prevent the development of antibiotic-resistant bacteria and ensures the patient recovers more quickly.