Ravi Singh K @rav7ks
1.1M 733 353
Academic Hospitalist and Program Director @SinaiBmoreIMRes, Medicine clerkship director GW School of Medicine and Health Sciences RMC at Sinai, Clinical reasoning,Simulation and POCUS enthusiast - https://twitter.com/rav7ks
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23 results
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Acute bacterial endocarditis ... • Infective endocarditis ... schistosomiasis • Pyemia ... • Gonococcal endocarditis ... Brucellosis • Liver or lung
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Autoimmunity • Chronic ... lung disease ... lymphocytic interstitial lung ... autoimmune hemolytic anemia ... Malignancies • Chronic
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Immunocompromised status • Chronic ... encounters due to NTM: Chronic ... lung infections ... Bone Marrow - Anemia ... differential #diagnosis #infectiousdiseases
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... pneumonia • Chronic ... Leukocytosis, anemia ... hemorrhage • Treatment ... several months of treatment
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
• Silicosis • Chronic ... malignancy, and chronic ... Tuberculosis Treatment ... Initiating Treatment ... Diagnosis #Management #Treatment
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
85% • < 50% in chronic ... change in the lungs ... arthritis, and endocarditis ... nails, bronchi, lungs ... ) #Mycoses #InfectiousDiseases
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
Aplastic Anemia ... Neutropenia - recurrent infections ... Idiopathic • Infections ... Treatment: ... #oncology #hematology
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
• Silicosis • Chronic ... malignancy, and chronic ... Tuberculosis Treatment ... Initiating Treatment ... Diagnosis #Management #Treatment
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... devices (CIED) Non-Infectious ... verrucous) • Lung ... infarction • Infectious ... Leukocytosis, anemia
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
: • Recurrent infection ... Symptoms: • Chronic ... in the adjacent lung ... of the affected lung ... mycobacteria Treatment