| Subject | Contents |
| Definition | This is a laboratory test performed on a lymph node, used to identify organisms (bacteria, viruses, and fungus) that cause infection. |
| Alternative Names | Culture - lymph node |
| How the test is performed | A needle aspiration or biopsy of an enlarged lymph node ( swollen glands ) is obtained. The fluid is placed in culture media and observed for growth in the laboratory. Sometimes special stains are also done. |
| How to prepare for the test | Adults: There is no special preparation. 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 experiences, 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 | The site may be anesthetized with a local anesthetic before the node is aspirated. There may be some pain when the needle is inserted into the lymph node. |
| Why the test is performed | The test may be performed if the cause of swollen glands is not known, and infection is suspected. |
| Normal Values | No growth is normal. |
| What abnormal results mean | Abnormal results indicate that infectious microorganisms, such as bacteria, viruses, or fungus are present. Atypical mycobacterial infection is an additional condition under which the test may be performed. |
| What the risks are | There is a risk of bleeding or infection. |
| Special considerations | Not applicable. |
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