17 results
Causes of Excessive Daytime Sleepiness - Differential Diagnosis Algorithm
Insufficient Sleep
 • Poor Sleep Hygiene
 • Insomnia
Shift Work) Sleep ... (Eg. ... • Medications (Eg ... • Drug Abuse (Eg ... Excessive #Daytime #Fatigue
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
) Morphology Microcytic ... Chemotherapy (e.g ... Unstable hemoglobin disorders ... #diagnosis #hematology ... #microscopy #atlas
Anemia Diagnostic Algorithm

Mean corpuscular (cell) volume (MCV): Average RBC size. Under 80 = microcytic. Between 80-95
Anemia Diagnostic ... (BM) ablative disorders ... of substrate (e.g ... #Diagnosis #Workup ... #Hematology #Microcytic
Primary Biliary Cirrhosis - Diagnosis Algorithm
Symptoms: Fatigue, Pruritus, Right upper quadrant discomfort
Signs: Jaundice, Xanthelasmata, Hepatomegaly
Associated history:
Algorithm Symptoms ... : Fatigue, Pruritus ... autoimmune disease (e.g ... specific ANAs (e.g ... #Algorithm #hepatology
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Neoplastic / Hematologic ... • Drug Abuse (e.g ... • Somatization Disorder ... Syndrome #Chronic ... #Diagnosis #Algorithm
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Algorithm Normal ... Increased Requirement (e.g ... • Small Bowel Disorder ... Myelodysplastic Syndromes ... #Hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... and Workup History ... function test, ANA (e.g ... #Causes #Workup ... #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(usually IgG) (e.g ... (usually IgM) (e.g ... lymphoproliferative disorders ... • Intrinsic RBC ... #hematology #anemia
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Algorithm • Sickle ... other reproducible morphologic ... membrane disorder ... #Algorithm #workup ... #hematology #testing
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Eosinophil Disorders ... Testing Algorithm ... evaluation or workup ... signs or symptoms (eg ... #diagnosis #hematology