2751 results
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
C. difficile PCR ... CMV qPCR (Serum/ ... Norovirus PCR (Stool ... consider multiplex PCR ... Transplant #diagnosis #differential
Liver Abscess - Differential Diagnosis
Pyogenic:
 • Hepatobiliary
 • Colonic
 • Bacteremia
Entamoeba histolytica:
 • Fecal/oral
 • Colitis
Liver Abscess - Differential ... • Stool O+P, PCR ... Liver #Abscess #Differential
Acute Diarrhea - Differential Diagnosis Framework
1)  Diagnostic studies only for dysentery, severe disease, >7 days
2)
Acute Diarrhea - Differential ... disease, >7 days 2) PCR ... Acute #Diarrhea #Differential
Diagnostic approach to the admitted patient with possible COVID-19

Initial evaluation
- Chest X-ray
- Lung ultrasound (thorough "lawn-mower"
Nasopharyngeal PCR ... - CBC with differential
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
in HIV / AIDS - Differential ... hemorrhage • CSF PCR ... Toxoplasma gondii PCR ... • JC-virus PCR ... CNS #Infections #differential
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
immunofluorescence, PCR ... ComputedTomography #Differential
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
toxo IgG • CNS PCR ... Lesions #Brain #differential
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
• CD4 < 200: PCP ... Fungal, AFB), TB PCR ... sputum, PCP DFA ... diagnosis #evaluation #differential
Cytomegalovirus (CMV) in HIV-AIDS Patients
Cytomegalovirus (CMV): double-stranded DNA virus, herpesvirus family.
CMV infection: virus isolation or detection
: Quantitative PCR ... AIDS #diagnosis #differential
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
ribosomal RNA PCR ... - PCR for ... Endocarditis #diagnosis #differential