38 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... amoxicillin) Oral ... Sarcoidosis or Lofgren's syndrome ... Differential #Diagnosis #Dermatology
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Algorithm Relative - Normal ... Positive - Low/Normal ... Cyanosis without Pulmonary ... #Hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Diagnosis Algorithm Normal ... Myelodysplastic Syndromes ... Target Cells, Normal ... WBCs - Normal ... #Hematology
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Causes include: ... cardiac disease • Normal ... • Heart size: Normal ... ECHO: • Normal ... chamber size • Normal
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Causes of Thrombocytopenia ... antiphospholipid syndrome ... Cirrhosis with portal ... Diagnosis #Framework #hematology
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
some patients) Normal ... Myelodysplastic syndrome ... differential #diagnosis #causes ... #hematology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
ABG And BMP Normal ... (Cl + HCO3)} Normal ... <0.4 Pure Normal ... acidosis 0.4-0.8 Normal ... of Normal Anion
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
Polycythemia - Acquired Causes ... Hypoxia-driven: Cardiac/pulmonary ... ), TEMPI (VEGF normal ... Diagnosis #Algorithm #hematology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... GPA causes disease ... the joints • Oral ... • Goodpasture syndrome ... Polyangiitis #GPA #dermatology
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
study (aPTT may be normal ... in mild cases) ... antigen (vWF:Ag) are normal ... Avoid meds that ... Management #treatment #hematology