13 results
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... inclusions - If infection ... #Anemia #Differential ... Diagnosis #Algorithm #workup ... #hematology #testing
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
anemia • Cold ... Positive Coombs testing ... Blood smear - RBC ... younger pts) Differential ... #hemolytic #anemia
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
approximately how long ... transform into a RBC ... Chronic kidney disease ... RBC defects (e.g ... #differential #
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... Lung abscess ... , anemia • Sputum ... Abscess Differential
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
Dehydrogenase (LDH) - Differential ... concentrations in: RBCs ... Prosthetic valves Lung ... Pneumonia • Other lung ... • Toxins • Infection
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Diagnosis and Workup ... procedures - Infection ... smear, HIV/HCV testing ... changes), high MCV anemia
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Fever Patterns - Differential ... schistosomiasis • Pyemia ... with profound hemolysis ... Brucellosis • Liver or lung ... Fever #Patterns #Differential
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
- M. abscessus ... chelonae • M abscessus ... haemophilum • Tropical setting ... Bone Marrow - Anemia ... #differential #
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... verrucous) • Lung ... Hypercoagulable (APLAS ... Marantic (NTBE) Differential ... Leukocytosis, anemia
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
- Overview and Differential ... , verrucous) - Lung ... Hypercoagulable (APLAS ... Leukocytosis, anemia ... #Endocarditis #Differential