52 results
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
with Normal Mean ... Hypersplenism • Secondary ... PRV, Chronic) Normal ... Polychromatic Macrocytes, Normal ... #Causes #Hematology
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... amoxicillin) Oral ... Nodosum #Mnemonic #Causes ... Differential #Diagnosis #Dermatology ... #SkinRash
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Prolonged PT (INR), Normal ... Prolonged PTT, Normal ... Prolonged PTT, Normal ... Differential #Diagnosis #Algorithm ... #Causes #Hematology
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
decreased, TIBC normal ... 18% • Anemia Secondary ... , TIBC Normal - ... Increased HgbA2, Normal ... #Causes #Hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... Normal Blood Smear ... Target Cells, Normal ... WBCs - Normal ... #Causes #Hematology
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
Differential Diagnosis Algorithm ... Polycythemia Vera Secondary ... Polycythemia - Acquired Causes ... ), TEMPI (VEGF normal ... #hematology
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Differential Diagnosis Algorithm ... Relative - Normal ... Positive - Low/Normal ... #Causes #Hematology
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Causes of Splenomegaly ... Differential Diagnosis Algorithm ... Hepatic, Portal, ... Differential #Diagnosis #Algorithm ... #Causes #Hematology
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
dermatophyte infection Caused ... antifungals • Oral ... Tinea #Versicolor #Dermatology ... #SkinRash #Diagnosis
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Differential Diagnosis Algorithm ... Weakness, fatigue, nausea ... insufficiency • Low or normal ... baseline ACTH - Secondary ... #endocrinology