Culture Negative Endocarditis Causes Mnemonic

"With Negative Tests, Investigators Should Focus Attention Somewhere Meaningful":

Wrong diagnosis
Noninfectious endocarditis
Timing (cultures drawn at end of chronic course)
obligate Intracellular organisms
Slow growing fastidious organisms
Fungal infection
Antibiotic used previously
Subacute right-sided endocarditis
Mural endocarditis