Pediatric Allergies Flashcards
Allergy categories
IgE and non-IgE mediated
IgE mediated reactions
Typically rapid in onset Skin GI tract Respiratory tract Anaphylaxis
Non-IgE mediated reactions
Occur hours to days after exposure
Typically presents in infants
Can present as chronic skin conditions or most commonly manifests as GI symptoms
Food allergy
Symptoms must occur minutes to hours of ingesting food to be considered for food allergy.
Diagnosis for food allergy
Skin prick test (SPT), allergen specific serum IgE, oral food challenge
________ of presumed food allergies are not allergies
50%-90%
Treatment of food allergy
Avoidance
Epi-pen for treatment for anaphylaxis
Is atopic dermatitis associated with food allergy?
Yep! and so is acute urticaria
Is acute or chronic rhinitis associated with food allergies?
Acute rhinitis
Must stop __________ before a skin prick test.
Antihistamines
Does positive test alone does not make the diagnosis of clinical food allergy?
No. Must correlate directly to symptoms due to high false positive rates.
When may patients may benefit from an oral food challenge?
if they have borderline test results or if a false positive or false negative is suspected based on clinical history
When are atopy patches tests used?
diagnose delayed hypersensitivity T-cell mediated reactions such as contact dermatitis
What constitutes a positive reaction on skin prick test?
A wheal at least 3mm greater than the negative control.
EPI dosage
- 15 mg of 1:1000 epinephrine for 15 to 30 kg (33 to 66 lbs)
- 3 mg of 1:1000 epinephrine for anyone over 30 kg (66 lbs).