9 results
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Infective Endocarditis ... special stains (e.g ... Negative #Infective #Endocarditis ... #diagnosis #differential ... #workup #infectiousdiseases
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Endocarditis Summary ... 90% of IE cases Culture ... staphylococci Culture ... Marantic (NTBE) Differential ... ↑ ESR, CRP • EKG
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Endocarditis - Overview ... and Differential ... ↑ ESR, CRP • EKG ... #Differential # ... Diagnosis #cardiology #infectiousdiseases
Perinephric fluid on POCUS

Differential Diagnosis: Calyceal rupture due to obstruction (eg, ureteral stone, crossing vessels, compression
Perinephric fluid on POCUS ... Differential ... Diagnosis: Calyceal rupture ... to obstruction (eg ... trauma, renal cyst rupture
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Bacterial Meningitis - Differential ... Enteroviruses (e.g ... • Conjunctival suffusion ... Good indicator to differentiate ... CNS #Infections #differential
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... by excretion (e.g ... its metabolism (e.g ... / hypoxemia -> focus ... Acidosis #Elevation #Differential
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... • Malignancy (e.g ... Endocrine disorders (e.g ... Lungs: • Pleural effusions ... • Libman-Sacks endocarditis
Pyogenic liver abscess in children
Common bacterial causes in children:
 • S.aureus
 • Strep spp
 • Enteric
from contiguous focus ... Hepatic artery (e.g ... ., endocarditis) ... children #peds #differential
Fever After International Travel

Infectious Disease:
• Endemic in either the destination or home region

Viral Syndromes:
Arboviral infections, a
function • Blood culture ... saliva sample (e.g ... possibly PCR testing (e.g ... Fever #Travel #Differential ... #Diagnosis #InfectiousDiseases