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21 Cards in this Set
- Front
- Back
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Cromolyn fxn
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anti-inflammatory. Stabilizes mast cells. not a bronchodilator.
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exercise induced asthma
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occurs at the end or after exercise. Takes at least 10 minutes of activity to trigger.
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age of allergies
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food allergies: younger kids
pollen allergies: >4yrs |
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food allergies: sx
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makes eczema worse, can cause anaphylaxis. Does not worsen asthma or rhinitis.
<7yrs: egg, milk, wheat >7yr: egg, milk, wheat, peanut, seafood |
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acute urticaria, time and provocateur
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<6wk. usually virus. Staph
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chronic urticaria, time, sx
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>6wks duration, stress, chronic exposure to antigen, thyroid, liver disease, autoimmune, infection
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agammaglobulinemia
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X-linked. 6mo sx start, as maternal Ab stop. pyogenic infections. no lymph nodes, no tonsils, absence in all Ig classes. Initial Rx is IVIg. No Ab prophylaxis.
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meds contraindicated in asthma
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B-blockers. block B-agonist therapy (albuterol)
NSAIDS should be avoided (can trigger asthma, |
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Samter S
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10-30 yr old. asthma, nasal polyps, sinusits, NSAID sensitivity.
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venom immunotherapy
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for patients with systemic reactions to allergens. anaphylaxis.
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Type I hypersensitivity
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IgE allergic rxn may progress to anaphylaxis. Ag links to IgE and attach to mast cell causing degran:
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Type II hypersensitivity
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IgG Ab + Ag casue a rxn. Rh incompatibility is clssic.
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Type III hypersensitivity.
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IgAb-Ag complexes react with comlement. Serum sickness.
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Type IV
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delyaed hyperseneitivity. PPD. T cell reacts to Ag.
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theophyline problems
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erythromycin increases level. phenobarb decreases level. viral illness can increase levle. therapeutic index low.toxicity = seizures, intractable emesis.
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breast feeding delay of allergic disease
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if done for 6 months with supplement only by hypoallergenic formula
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best way to reduce eczema in baby
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Delay solid foods til after 4 months. reduced incidence of eczema.
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subtle signs of anaphylaxis
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Absence of rash, Abdominal pain.Feeling unwell or sense of doom, dizzyness, respiratory symptoms. Treat with epi when in doubt in those with known anaphylaxis (food allergies)
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severe eczema and food
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40% have food sensativity. Start with elimination diet for 2 weeks. If skin improves, systematically reintroduce foods. RAST and Skin testing not terribly helpful. Skin tests 50% false positive.
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timing of drug allergy
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usually within 24hrs of starting therapy. Rash developing later is usually. A rash that continues for 48hrs after D/C of med is almost certainly not a drug rxn.
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age of outgrowing food allergies
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Most by milk, egg, soy alergiew outgrown by 5y
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