31 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... - Differential ... #Differential # ... Diagnosis #InfectiousDiseases
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Histoplasma) - Culture ... streptococci - Culture ... negative #Infective ... Pathogens #Diagnosis #Differential ... #InfectiousDiseases
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... • HACEK • Culture-negative ... epidermidis • Gram-negative ... #Endocarditis #Algorithm ... Noninfective #Causes #Differential
Differential Diagnosis of Hemoptysis #Diagnosis #EM #IM #InfectiousDisease #Pulmonary #Hemoptysis #Extrapulmonary #Differential #Algorithm #Assessment #Ddxof
Differential Diagnosis ... Diagnosis #EM #IM #InfectiousDisease ... #Pulmonary #Hemoptysis ... Extrapulmonary #Differential ... #Algorithm #Assessment
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... negative infective ... BCNIE #Causes #differential ... #negative #Endocarditis ... #InfectiousDiseases
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Lung Disease - Differential ... Diagnosis and Workup Algorithm ... , NTB, Fungal, Parasitic ... #lesion #pulmonary ... #differential
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
and Management Algorithm ... Bacterial culture ... Ova and Parasite ... above testing negative ... Transplant #diagnosis #differential
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
because false-negative ... Mycobacterial culture ... used to exclude pulmonary ... Mycobacterial culture ... LatentTB #ActiveTB #InfectiousDiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... remain negative ... #BloodCulture #Negative ... Endocarditis #diagnosis #differential ... #workup #infectiousdiseases
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Neutrophil (Normal) Differential ... likelihood of negative ... indicator of infection relative ... #Bandemia #differential ... CBC #hematology #pathophysiology