Abdominal tap  Health Article

Definition

An abdominal tap is a procedure used to remove fluid from the abdomen.

Alternative Names

Peritoneal tap; Paracentesis

How the test is performed

This test may be done in an office setting, treatment room, or hospital.

The puncture site will be cleaned and shaved, if necessary. You then receive a local numbing medicine. The tap needle is inserted 1 - 2 inches into the abdomen. Sometimes a small cut is made to help insert the needle. The fluid is pulled out into a syringe.

The needle is removed. A dressing is placed on the puncture site. If a cut was made, one or two stitches may be used to close it.

There are two kinds of abdominal taps:

• Diagnostic tap -- a small amount of fluid is taken and sent to the laboratory for testing
• Large volume tap -- several liters may be removed to relieve abdominal pain and fluid buildup

How to prepare for the test

Let your health care provider know if you:

• Have any allergies to medications or numbing medicine
• Are taking any medications (including herbal remedies)
• Have any bleeding problems
• Might be pregnant

Infants and children:

The preparation you can provide for this test depends on your child's age, previous experience, and level of trust. For general information regarding how you can prepare your child, see the following topics:

• Infant test/procedure preparation (birth - 1 year)
• Toddler test/procedure preparation (1 - 3 years)
• Preschooler test/procedure preparation (3 - 6 years)
• School age test/procedure preparation (6 - 12 years)
• Adolescent test/procedure preparation (12 - 18 years)