Peritoneal fluid culture

Alternative names:

culture of peritoneal fluid

How the test is performed:

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

How to prepare for the test:

Empty your bladder prior to the paracentesis procedure.

Infants and children:
The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age:

• infant test or procedure preparation (birth to 1 year)
• toddler test or procedure preparation (1 to 3 years)
• preschooler test or procedure preparation (3 to 6 years)
• schoolage test or procedure preparation (6 to 12 years)
• adolescent test or procedure preparation (12 to 18 years)

How the test will feel:

There is a stinging sensation from the anesthetic. There will be a feeling of pressure as the needle is inserted. If a large amount of fluid is withdrawn, you may have a feeling of dizziness or lightheadedness. Tell the health care provider if you feel dizzy.

Why the test is performed:

The test is done to determine the cause of ascites, fluid accumulation in the peritoneal space.