47 results
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
most likely to cause ... pulmonary infection ... It can also cause ... Reported cases associated ... #differential #infectiousdiseases
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
testing (TST) False-negative ... because false-negative ... sample = 95% • A negative ... used to exclude pulmonary ... #InfectiousDiseases
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... Infectious: Legionella ... spotted fever, Non-infectious ... #bradycardia #Causes ... differential #diagnosis #infectiousdiseases
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Framework NCPE Pathophysiology ... Causes include: ... renin-angiotensin-aldosterone system activity ... • Normal or negative ... hemorrhage, seizure activity
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Transplant Infections ... Staphylococci (skin), Gram-negative ... #Transplant #Infections ... differential #diagnosis #causes ... #infectiousdiseases
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
. tuberculosis infections ... for 4.6% of new infections ... tuberculosis (LTBI) Pathophysiology ... • Pulmonary fibrotic ... • HIV: 2/3 pulmonary
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... antibiotics as a cause ... Dracunculiasis - Non-Infectious ... Blastomycosis - Non-Infectious ... Differential #Diagnosis #InfectiousDiseases
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
. tuberculosis infections ... for 4.6% of new infections ... tuberculosis (LTBI) Pathophysiology ... • Pulmonary fibrotic ... • HIV: 2/3 pulmonary
Causes of Sudden Unexpected Death in Infancy (SUDI) - Differential Diagnosis Algorithm
Congenital Anomaly / Disorder:
 •
Causes of Sudden ... Neurologic Anomaly • Pulmonary ... Metabolic Disorders Infection ... Gastrointestinal infection ... ): • Autopsy negative
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
Most invasive infections ... are caused by members ... presentations: • Pulmonary ... considered in certain cases ... treatment #fungal #infectiousdiseases