Definition of Peritoneal fluid culture:

Peritoneal fluid culture is a laboratory test performed on a sample of peritoneal fluid to isolate and identify the presence of microorganisms that cause infection (peritonitis).

Peritoneal fluid is the fluid from the peritoneal cavity, a space between two membranes lining the abdominal cavity.

How the test is performed:

The test is performed by abdominal tap, a needle aspiration of the peritoneal cavity. A sample of fluid is sent to the laboratory for gram stain and culture preparation. The sample is examined regularly for the growth of microorganisms.

How to prepare for the test:

Empty your bladder before your abdominal tap procedure.

How the test will feel:

A small area in your abdomen will be cleaned with an antiseptic. You will also receive local anesthesia. You will then feel pressure as the needle is inserted. If a large amount of fluid is withdrawn, you may feel dizzy or light-headed.

Why the test is performed:

The test is done to find out if there is an infection in the peritoneal space.