Aerobic Plate Count of Blood (Microbiology Culture)

What Is a Blood Culture Aerobic Plate Count?

A blood culture involves drawing blood and placing it in special containers to detect and grow any bacteria present. The aerobic plate count specifically examines the blood under conditions where oxygen is present, allowing bacteria that thrive in oxygen to grow. This process helps identify if bacteria are causing an infection in your bloodstream.

Why Might You Need This Test?

This test is typically ordered if you have symptoms of a serious blood infection, such as fever, chills, or signs of sepsis. It may also be used in monitoring patients with known infections, such as those with weakened immune systems or those receiving chemotherapy.

How Is the Test Performed?

Blood is drawn from a vein, usually in your arm, and placed in sterile containers. These containers are then incubated in a special environment that supports bacterial growth. After a few days, the blood is plated onto specific growth media under aerobic conditions to detect and count any bacteria that have multiplied.

What Do the Results Mean?

Results are qualitative (present or absent) rather than quantitative, as the primary goal is to detect bacterial growth rather than measure exact counts. If bacteria are found, further testing (like antibiotic sensitivity testing) will be needed to determine the best treatment.