10 results
Stool Cultures - Indications in Diarrhea
Patient Categories to Order Stool Cultures On:
 • Persisting 1 week
IBD, age > 70, pregnant ... outbreak) Few infectious ... causes of acute ... 196 (1.5%) had a positive ... #Indications #diagnosis
Listeriosis Summary - Listeria Monocytogenes
Pathogen: Listeria Monocytogenes - Gram-positive rod, Aerobic, facultative anaerobe, motile, beta-hemolytic, Non-spore-forming
Risk
- Gram-positive ... • CNS infection ... Diagnosis: ... • Stool culture ... #diagnosis #management
Listeriosis Summary - Listeria Monocytogenes
Pathogen: Listeria Monocytogenes - Gram-positive rod, Aerobic, facultative anaerobe, motile, beta-hemolytic, Non-spore-forming
Risk
- Gram-positive ... • CNS infection ... Diagnosis: ... • Stool culture ... #diagnosis #management
Acute Diarrhea - Differential Diagnosis Framework
1)  Diagnostic studies only for dysentery, severe disease, >7 days
2)
Acute Diarrhea - ... >7 days 2) PCR>culture ... EPEC, Listeria monocytogenes ... #Diarrhea #Differential ... #Diagnosis #Infectious
Algorithm for the Evaluation of Acute Diarrhea (< 7 days)
Are the following present?
   1.
Evaluation of Acute ... Routine stool culture ... HIV infection or ... positive 2. ... algorithm #workup #diagnosis
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Symptoms: • Acute ... in 60%-90% • Culture ... : Positive in 70% ... Monocytogenes or
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
head in dependent position ... or at work) - acute ... preeclampsia: late pregnancy ... postpartum #Diagnosis ... Killers #Lethal #Fatal
Nausea and Vomiting - Differential Diagnosis Algorithm

Upper Gastrointestinal - Acute
 • Infectious Gastroenteritis
 • Gastric/Duodenal Obstruction
- Differential Diagnosis ... /Metabolic • Pregnancy ... Monoxide • Heavy Metal ... Hemorrhage • Meningitis ... #Differential #Diagnosis
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
presents with acute ... pulmonary, systemic or meningitic ... (~40%) • Meningitis ... Invasive Disease: • Meningitis ... have positive blood
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
shaped • Weakly positively ... • Gram stain, culture ... used to diagnose ... concomitant infection ... headache, mimicking meningitis