91 results
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Risks factor for HIV ... K), H. pylori test ... thyroid function test ... or if a primary hematologic ... #Workup #hematology
Bayesian combination of 4T score with Heparin PF4 antibody titer to obtain the post-test probability of
obtain the post-test ... probability of HIT ... Bayesian #Diagnosis #Hematology
Causes of Arterial and Venous Thrombosis - Differential Diagnosis Framework

STRUCTURAL:
 - PFO: paradoxical emboli
 - Popliteal
Causes of Arterial ... artery aneurysm: Causes ... APLS:PLT ↓ HEMATOLOGIC ... neoplasms - PNH - HIT ... Diagnosis #clots #hematology
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Algorithm and Causes ... #Differential #Causes ... #Workup #Hematology ... GrepMed Recommended Text
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... predispose to other orthopedic ... common sites: hip ... differential #diagnosis #causes ... #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
disorders, or other causes ... • Secondary Causes ... Ig A vasculitis/HSP ... Differential #Diagnosis #hematology ... #rheumatology #
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Quinidine • HIT ... Diagnosis #Algorithm #Causes ... #Hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... ITP - APLS - HIT ... Fecal occult blood test ... Diagnosis #Algorithm #Causes ... #dermatology #physicalexam
4-T Score for the Likelihood of Heparin Induced Thrombocytopenia
 - Thrombocytopenia - Compare the highest platelet
count
Other potential cause ... probability (risk of HIT ... probability (risk of HIT ... ) #4TScore #HIT ... Likelihood #Diagnosis #Hematology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... vertigo Diagnostic tests ... - Ice cube test ... , TempTest test ... Urticaria #diagnosis #rheumatology