Microbiological screening for *Pseudomonas putrefaciens* in stool (qualitative culture)

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like persistent diarrhea, abdominal pain, or if you’ve been exposed to certain environments where *Pseudomonas* bacteria are common. It can also be part of routine monitoring for patients with weakened immune systems or chronic conditions like cystic fibrosis.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to collect a fresh stool sample in a sterile container. If you’re on antibiotics or have recently had a bowel movement, let your provider know to ensure accurate results.

What the Test Results Mean

A positive result means *Pseudomonas putrefaciens* was detected in your stool. This doesn’t always mean you’re sick, but it may signal an infection or need for further testing. A negative result means the bacterium wasn’t found in this sample.

Possible Follow-Up Actions

If the test is positive, your doctor may recommend additional tests (like blood cultures or imaging) to determine the cause of symptoms. They may also prescribe antibiotics if an infection is confirmed. If symptoms persist despite a negative result, other causes (like food poisoning or irritable bowel syndrome) may be investigated.