Primary role of blood culturing is to recognize the etiologic agent and with knowledge of its sensitivity/resistance pattern to establish the optimal antibiotic treatment. In infective endocarditis, results of blood culturing are very important for identification and/or verification of the disease as well.
Blood culturing is a very sensitive examination. With non-correct practice, there can be obtained false-negative or false-positive results easily.
This article should help to better understanding the method, collecting blood cultures properly, and interpreting the results of cultivation.