Acinetobacter Culture and Identification Test (Serum)

What is this test?

The Acinetobacter culture and identification test is a microbiology test used to isolate and identify Acinetobacter bacteria from a patient's serum sample. Acinetobacter is a gram-negative bacterium found widely in the environment and is especially common in healthcare settings, particularly intensive care units. When a patient has signs of an infection, a doctor may order this test to determine whether Acinetobacter is the cause.

Why might I need this test?

This test is ordered when a patient has fever or signs of infection, such as pneumonia, a urinary tract infection, a wound infection, or a bloodstream infection, and the doctor suspects Acinetobacter may be the cause. It is also commonly used for hospitalized patients, especially those in intensive care, patients who have undergone invasive procedures such as catheters or ventilator support, and people with weakened immune systems, since Acinetobacter is a frequent cause of infection in these situations.

How are the test results interpreted?

Results are usually reported as negative or positive. A negative result means no Acinetobacter grew in the sample that was tested. A positive result means Acinetobacter was present, and the laboratory will identify the specific species and perform antibiotic susceptibility testing to help your doctor choose the most effective antibiotic. Keep in mind that a positive result does not necessarily mean your current illness is caused by Acinetobacter; your doctor will consider your symptoms and other test findings together before making a diagnosis.

What should I know before the test?

No special preparation is needed before an Acinetobacter serum culture. The blood draw is performed by a trained healthcare professional, usually taking an appropriate amount of blood from a vein in your elbow. If you are currently taking antibiotics, tell your doctor, because certain antibiotics may affect the test results.