What is the BNR test, and what is it for?

The BNR test is a lab-developed test (LDT) that examines whole blood specimens under high-resolution microscopy to examine blood films for biofilm (B), neutrophil lysis/degranulation (N), and red blood cell inclusions (R).  This may help the clinician develop a better differential diagnosis and help direct additional diagnostic testing.  This is NOT a standard blood smear review and it is NOT intended to detect infections.