29 results
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
, Chronic disease ... Microangiopathic Hemolytic ... Unstable hemoglobin disorders ... Cold autoimmune hemolytic ... #Morphology #differential
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential ... membrane disorder ... #Anemia #Differential ... Diagnosis #Algorithm #workup
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential ... on Smear • Chronic ... • Anemia of Chronic ... Disease • Marrow ... Membrane Disorder
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
anemia): ... lymphoproliferative disorders ... • Intrinsic RBC ... Extravascular #Causes #differential ... diagnosis #hematology #anemia
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Red Blood Cell (RBC ... spherocytosis, Hemolytic ... PD deficiency, Pulmonary ... Schistocytes - Hemolytic ... key #diagnosis #differential
Clinical Classification of Pulmonary Hypertension

1. Pulmonary arterial hypertension from pulmonary vasculopathy
Idiopathic pulmonary arterial hypertension
Heritable gene mutations
hemolytic anemia ... and/or hypoxia Chronic ... pulmonary disease ... Chronic thromboembolic ... Classification #Diagnosis #Differential
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
transform into a RBC ... kidney disease, ... Microangiopathic hemolytic ... RBC defects (e.g ... #differential #
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
• Symptoms of anemia ... anemia • Cold ... Blood smear - RBC ... younger pts) Differential ... #hemolytic #anemia
Anemia - Underproduction Diagnostic Algorithm
 - Iron deficiency anemia
 - Anemia of chronic inflammation
 - Anemia
- Anemia of chronic ... disease - Vitamin ... Probable bone marrow disorder ... hematology #diagnosis #differential ... #workup
Causes of Wide Pulse Pressure - Differential Diagnosis
Physiologic:
 • Advanced age-arteriosclerosis (less compliant arteries)
 • Well
Pulse Pressure - Differential ... conditioned athletes Pathologic ... : • Valvular disorders ... - Chronic pulmonary ... diseases • Arteriovenous