13 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
: Is the PT or APTT ... Anticoagulants (Vitamin ... Prolonging the PT or APTT ... to identify the cause ... prolonged #diagnosis #hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... the PT and the aPTT ... ) • Severe vitamin ... #diagnosis #differential ... #hematology #coagulation
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Early vitamin K ... Severe vitamin K ... #diagnosis #differential ... #hematology #coagulation
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... / Bruising - Differential ... Liver Disease • Vitamin ... Diagnosis #Algorithm #Causes ... #Hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... : INR/PT, aPTT(liver ... vegan, gastric bypass ... or if a primary hematologic ... #Workup #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Corticosteroids - Vitamin ... Vasculopathy #Purpura #Differential ... #Diagnosis #hematology ... #nonpalpable #dermatology
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
of Hemostasis - Differential ... prolonged after Vitamin ... discern these causes ... Bruising #Hemostasis #Differential ... #Diagnosis #Hematology
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
Megaloblastic: Vitamin ... morphologic #mcv #differential ... #diagnosis #causes ... #hematology
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Diffuse and Focal) Differential ... deficiency • Vitamin ... HairLoss #Alopecia #dermatology ... #Differential # ... Diagnosis #Algorithm #causes
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Copper deficiency, Vitamin ... A excess, Vitamin ... • ANA • Vitamin ... #Diagnosis #dermatology