23 results
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... Diagnosis Algorithm ... AIHA • PCH ... immune-complex hemolytic anemia ... #Causes #Hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
• Symptoms of anemia ... anemiaCold ... - Mycoplasma, EBV ... younger pts) Differential ... #hematology #diagnosis
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... for Hemolytic Anemia ... : • Liver disease ... • AIHA: warm, cold ... Diagnosis #causes
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... Extravascular Causes ... #differential # ... diagnosis #hematology ... #anemia
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Diagnosis Framework ... Autoimmune: Warm AIHA, Cold ... Drug-associated, PCH ... Defects: Sickle cell anemia ... #Diagnosis #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... practices that could ... (CVID, WAS), (neurologic ... changes), high MCV anemia ... #Diagnosis #Causes
Algorithm and Differential Diagnosis of Macroscopic Hematuria
Important Historical Elements:
- Painless: suggests malignancy
- Painful: suggests calculi/infection
- Urinalysis:
Algorithm and Differential ... RBC’s, RBC/WBC casts ... intrinsic renal disease ... #EM #IM #Urology ... #Algorithm #Ddxof
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Infectious: Influenza, EBV ... : CHF, valves, COPD ... ILD, OSA, pHTN, Anemia ... #Diagnosis #causes ... #neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... toxo IgG • CNS PCR ... Lesions #Brain #differential ... #diagnosis #causes ... #radiology #neurology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Leukocytosis, anemia ... of PCN allergy ... Coli - P. ... #causes #management