12 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
Endocarditis - Duke Criteria - Major and Minor

MAJOR CRITERIA: 
 - Persistently +ve blood culture for
Endocarditis - Duke ... Coxiella burnetii infection ... rheumatoid factor - Positive ... blood cultures ... #Major #Minor #Diagnosis
Duke's Criteria for Infective Endocarditis
Definite IE - Pathologic Criteria:
 • Pathologic lesions - vegetation or intracardiac
for Infective Endocarditis ... demonstrating active endocarditis ... evidence of active infection ... febrilepodcast] #Duke ... #diagnosis #major
Endocarditis checklist
Initial evaluation
 • Peripheral blood cultures (three sets at three different sites)
 • Additional culture
for metastatic infection ... spleen, brain) Indications ... Persistent fever, positive ... metastatic foci of infection ... #criticalcare #diagnosis
DENOVA score to predict endocarditis in patients with Enterococcus faecalis bacteremia
 • Duration of symptoms ≥
• Number of positive ... cultures ≥ 2 ... • Origin of infection ... Auscultation of murmur Indication ... faecalis #bacteremia #diagnosis
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... are positive in ... (+): Acute: ... Diagnosis? ... Suspicion -> TEE • Duke
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
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential Diagnosis ... Infectious: • Pre-existing ... are positive in ... Positive: • Acute ... Suspicion → TEE • Duke
Spontaneous Bacterial Peritonitis
DIAGNOSTICS
Paracentesis: 
 • Calculate absolute PMN count (total WBC x PMN %)
 • Correct
Bacterial Peritonitis DIAGNOSTICS ... have bacterial "culture-positive ... CNNA the same as culture-positive ... risk X Stop if no indication ... ↓ rebleeding, infections
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