30 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
within one hour or longer ... Disorientation, vertigo Diagnostic ... test, TempTest ... #Urticaria #diagnosis ... #rheumatology #
Raynaud's Syndrome - Washing off under hot water.
Raynaud phenomenon is an exaggerated vasoconstrictive response of the
and/or toes) to cold ... Raynauds #Syndrome #disease ... clinical #video #physicalexam ... #water #fingers ... #hands #rheumatology
Raynaud's Syndrome - Washing off under hot water wath.

Raynaud phenomenon is an exaggerated vasoconstrictive response of
and/or toes) to cold ... Raynauds #Syndrome #disease ... clinical #video #physicalexam ... #water #fingers ... #hands #rheumatology
Expected DAT Results in Autoimmune Hemolysis
DAT Negative Hemolysis
 • DAT Poly ( - ), IgG (
, C3d ( +/- ) Cold ... agglutinin disease ... #antiglobulin #test ... Autoimmune #Hemolysis #hematology ... #diagnosis
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
nose, ears, or fingers ... Test: Donath-Landsteiner ... test #cold # ... hemolytic #anemia #hematology ... #diagnosis
Pathologic Red Blood Cell (RBC) Morphologies and Associated Diseases

Acanthocyte (spur cell),  
Basophilic stippling, 
Bite cell,
and Associated Diseases ... Macro-ovalocyte, Ringed ... Microscopy #Pathology #Hematology ... #Diagnosis #Dyspmorphic ... GrepMed Recommended Text
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... and Workup History ... practices that could ... #Causes #Workup ... #hematology
Eichhoff's Test in de Quervain's Tenosynovitis

1) Patient makes a fist with fingers wrapped around the thumb
2)
makes a fist with fingers ... ulnar deviates the wrist ... clinical #video #physicalexam ... #orthopedics #rheumatology ... #wrist
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
- Differential Diagnosis ... Agglutination - Cold ... #Differential #Diagnosis ... #Algorithm #workup ... #hematology #testing
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
- Differential Diagnosis ... Autoimmune: Warm AIHA, Cold ... , Drugs, Liver Disease ... Laboratory Tests ... #hematology