2864 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Cold Urticaria Prevalence ... decades of life Causes ... Female predominance Anaphylaxis ... fever, fatigue, Nausea ... .14674 #Cold #Urticaria
Approach to Elevated Tryptase - Differential Diagnosis Framework

The DDx of elevated tryptase can be broken down
Dangerous secondary causes ... : • Anaphylaxis ... infections • Chronic Urticaria ... pass = Primary Causes ... pass = Genetic Causes
Clinical manifestations of anaphylaxis. 
Neurological (<15%): Dizziness, syncope, seizures, Confusion, impending doom. headache
Angioedema: Lips, tongue, orbit,
manifestations of anaphylaxis ... Mucosa 80-90%): Urticaria ... arrest GI (>40%): Nausea ... incontinence #anaphylaxis
Diagnosis and Management of Hypocomplementemic Urticarial Vasculitis (HUV)

Diagnosis of HUV
1) Chronic urticaria 
2) Leukocytoclastic vasculitis 
3)
Hypocomplementemic Urticarial ... HUV 1) Chronic urticaria ... Hypocomplementemic #Urticarial
Anaphylaxis: Signs and Symptoms
Anaphylaxis: when any egg of three conditions is met:
1. Acute onset of skin/mucosal
Anaphylaxis: Signs ... and Symptoms Anaphylaxis ... ischemia) • Urticaria ... Angioedema #Anaphylaxis
Occult Causes of Non-Response to Vasopressors

vital disclaimer: the cognitive response to hypotension should not be reaching
Occult Causes of ... response -> cognitive pause ... hypothyroid - anaphylaxis ... toxicologic - 2nd cause ... #Differential #Causes
Causes of Urticaria

Immunoglobulin E (IgE) mediated

 - Aeroallergens

 - Contact allergen

 - Food allergens

 - Insect
Causes of Urticaria ... #Differential #Urticaria ... Mediated #NonIgE #Causes
Pediatric Anaphylaxis Algorithm 

#Anaphylaxis #Algorithm #Pediatrics #Peds #Allergy
Pediatric Anaphylaxis ... Algorithm #Anaphylaxis
Causes of Acute Dyspnea - Differential Diagnosis Algorithm
Cardiovascular
 • Myocardial Infarction*
 • Cardiac Tamponade*
 • CHF
Pleural
Causes of Acute ... Aspiration* • Anaphylaxis ... Diagnosis #Algorithm #Causes
Urticaria Mimics

Conditions That May Be Confused with Urticaria

Arthropod bites 
, Atopic dermatitis 
, Bullous pemphigoid 
,
Urticaria Mimics ... Confused with Urticaria ... Pityriasis rosea , Urticaria ... #Differential #Urticaria