10 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... these bacteria should ... BCNIE #Causes #differential ... #Endocarditis #InfectiousDiseases ... #CNIE #BCNIE #cardiology
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
spread of the Gram-negative ... blood cultures should ... the preferred test ... typically part of the workup ... #Microbiology #InfectiousDiseases
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... should be obtained ... ANAs; thus, a negative ... Arthritis #laboratory #workup ... diagnosis #testing #Rheumatology
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
• Some false negative ... with response to treatment ... specific laboratory tests ... management #phenotypes #workup ... #treatment #rheumatology
Coccidiomycosis - Diagnosis
Diagnosis:
 • Mildly elevated peripheral WBC, Eosinophilia (25%), Elevated ESR, Procalcitonin normal (95%)
 •
trend response to treatment ... immunodiffusion test ... Culture (ElA may be negative ... Coccidioides #Diagnosis #workup ... #infectiousdiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... microbiological techniques Work-up ... these bacteria should ... Endocarditis #diagnosis #differential ... #workup #infectiousdiseases
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
value is low, tests ... - Negative, ruling ... WBC count and differential ... ThromboticThrombocytopenicPurpura #Diagnosis #Workup ... #Hematology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
NMO-IgG (anti-AQP4) should ... tested and if negative ... , MOG-IgG test should ... Transverse Myelitis Treatment ... management #neurology #differential
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
- Overview and Differential ... aureus, Coagulase-negative ... hematuria, + RF Treatment ... #Diagnosis #cardiology ... #infectiousdiseases
Anemia of Hospitalization - Pathophysiology

Why does the Hgb/Hct drop in the first two days during hospitalization?

Interestingly,
prolonged bed rest ... recognition of bedrest’s negative ... phlebotomy/ blood work ... to lying down should ... pathophysiology #differential