Complete Blood Count (CBC)

A complete blood count, or CBC, is a common blood test that measures the different cells in your blood, including red blood cells, white blood cells, and platelets, giving your provider a broad picture of your overall health.

An anaerobic bacterial culture is a laboratory test that finds and identifies bacteria that do not need oxygen to grow (anaerobic bacteria). These bacteria can cause serious infections in deep tissues, wounds, abscesses, or internal organs. The test helps doctors determine if an infection is caused by anaerobic bacteria and which specific type is present.

Your doctor may order this test as part of a routine checkup, to look into symptoms such as fatigue, weakness, fever, or easy bruising, or to monitor a condition like anemia or infection and see how well your treatment is working.

Your doctor may order this test if you have symptoms of an infection that might be caused by anaerobic bacteria. Common signs include wound infections, abscesses, dental infections, pelvic inflammatory disease, or infections after surgery. Identifying the exact bacteria helps your doctor prescribe the most effective treatment.

The sample is collected from a vein in your arm, usually on the inside of the elbow. A clinician cleans the site, wraps a band around your upper arm, draws a small tube of blood with a thin needle, and covers the puncture with a bandage.

The sample depends on where the infection is located. It may include pus, tissue, fluid from a wound or abscess, blood, or other body fluids. The sample is collected using a sterile swab, needle, or tissue sample and placed in a special container that prevents oxygen exposure. For blood tests, blood is drawn from a vein in your arm.

Your results show whether your blood cell counts fall within normal ranges. Values that are too high or too low may point to conditions such as anemia, infection, inflammation, or clotting problems, but abnormal results alone do not confirm a diagnosis and often call for follow-up testing.

A positive result means anaerobic bacteria were found and identified in your sample. This confirms an anaerobic bacterial infection. The report will include the specific type of bacteria found. A negative result means no anaerobic bacteria were detected, though this does not completely rule out infection. Your doctor will interpret these results along with your symptoms and other tests.

This test has very few risks. You may feel a brief sting when the needle goes in, and the puncture site can be slightly sore or bruised or bleed a little afterward. Serious complications such as infection are rare, and you can usually return to normal activities right away.

Risks are minimal and depend on how the sample is collected. Blood drawing may cause slight bruising or soreness at the needle site. Collecting tissue or fluid samples may cause temporary discomfort or bleeding. These tests are generally safe when performed by healthcare professionals.