21 results
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PTT • Prolonged ... #Differential #Diagnosis ... #Algorithm #Causes ... #Hematology #coagulation
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Pre-analytical cause ... Massive hemorrhage ... #Causes #diagnosis ... #differential #hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... for a Prolonged ... • Massive hemorrhage ... #Causes #diagnosis ... #differential #hematology
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Artifactually Prolonged ... to identify the cause ... of Prolonged APTT ... Abnormal #APTT #prolonged ... #diagnosis #hematology
Causes of Post-Partum Hemorrhage - Differential Diagnosis Algorithm
Blood Loss: >500mL post vaginal delivery OR >1000 mL
Causes of Post-Partum ... Hemorrhage - Differential ... Diagnosis Algorithm ... section Uterine Atony ... fatigue (e.g. prolonged
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Causes of Thrombocytosis ... - Differential Diagnosis ... deficiency, hemolysis, hemorrhage ... #Differential #Diagnosis ... #Causes #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... red to purple, hemorrhagic ... #Differential #Diagnosis ... #hematology #rheumatology ... #nonpalpable #dermatology
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
Hemophilia - Diagnosis ... disease) • aPTT is prolonged ... normal in mild cases ... Avoid meds that ... Management #treatment #hematology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... rash (6.7%) • Hemorrhagic ... Differential Diagnosis ... Polyangiitis #GPA #dermatology ... #rash #diagnosis
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Moccasin-variety Tinea Pedis ... Diagnosis? ... dermatophytes cause ... is more severe, prolonged ... #photo #foot #dermatology