55 results
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
• stored red blood ... variant • fetal ... • chronic ... - Sickle cell anemia ... #Causes #Diagnosis
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Diagnosis Algorithm ... RA, SLE, PRV, Chronic ... Normal RBCs • Acute ... Hypothyroid • Pregnancy ... #Causes #Hematology
Factors that May Affect Fetal Oxygenation - Differential Diagnosis Algorithm

Excessive Uterine Activity:
 • Hyperstimulation
 • Placental
Oxygenation - Differential ... Diagnosis Algorithm ... • Post-dates pregnancy ... : • Maternal anemia ... Decreased Uterine Blood
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Thrombocytosis - Differential ... Diagnosis Algorithm ... Infectious: • Acute ... or Chronic Inflammatory ... Iron deficiency anemia
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
Diagnostic Framework ... disease, Acute ... blood loss, Anemia ... morphologic #mcv #differential ... #hematology
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential ... Blood Loss ... • Acute Bleed - ... • Anemia of Chronic ... #Causes #Hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... Diagnosis Algorithm ... : Acute blood loss ... , deficiency anemia ... • Infections: Chronic
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
1) DIAGNOSE AIHA ... autoantibodies: positive ... type ± C3d • Blood ... smear: Differential ... #treatment #rheumatology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
the peripheral blood ... Index > 3: • Acute ... Production #Index #hematology ... #anemia #differential ... #diagnosis #calculation
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
Diagnosis Platelet ... Reactive: • Anemia ... /blood loss (Fe ... Myelofibrosis • Chronic ... #Platelets #hematology