Rectal culture

Injury	Disease	Nutrition	Poison

Symptoms	Surgery	Test	Special Topic

Rectal culture

Overview

Risks

Results

Rectal culture

Definition:

Rectal culture is a laboratory test to isolate and identify organisms in the rectum that can cause gastrointestinal symptoms and disease. Normally, many organisms are present in the lower gastrointestinal (GI) tract, but some can act as pathogens (disease-causing organisms) in the bowel.

Alternative Names:

Culture - rectal

How the test is performed:

A cotton swab is inserted into the rectum, rotated gently, and withdrawn. A smear of the swab is placed in culture media to encourage the growth of microorganisms. The culture is observed for growth at regular intervals in the laboratory. When growth is observed, the organisms can be identified. Further tests to determine sensitivity of the organisms to antimicrobial therapy may also be carried out (see sensitivity analysis).

How to prepare for the test:

A rectal examination is done by the health care provider.

How the test will feel:

There may be pressure as the swab is inserted into the rectum, but the test is usually not painful.

Why the test is performed:

The test is performed when gastrointestinal distress is present and infection is suspected as a cause of the distress. It may be performed when a gonorrhea infection is suspected. It may be performed as an alternative to a fecal culture if it is not possible to obtain a feces specimen.

It may also be performed in a hospital or nursing home setting to see if someone carries vancomycin-resistant enterococcus (VRE) in their intestine, which can be spread to other patients. Patients with VRE are often maintained on isolation precautions.

Review Date: 2/10/2006
Reviewed By: Kenneth Wener, M.D., Division of Infectious Diseases, Beth Israel Deaconess Medical Center, Boston, MA. Review provided by VeriMed Healthcare Network.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2004 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.