Uploaded byFaiza Waseem
Allergic Reaction .pdf
The document discusses allergic reactions, explaining the body's immune response to allergens and the types of allergens that can cause such reactions, including pet dander, foods, and medications. Symptoms range from mild reactions, such as hives and itching, to severe reactions like anaphylaxis, which requires immediate medical attention. Diagnosis of allergies can be performed through various tests by a primary care physician or an allergist.
Allergic Reaction .pdf
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- 2. Body Immune reactiondue to re-sensitization by an antigen Sensitization : Allergen-------Enter into body-----Produce antibodies--No reaction Re-sensitization : Allergen----Enter into body for second time---Antigen antibody reaction
- 3. Types of AllergicReation
- 4. Types of AllergicReation
- 5. Causes of allergicreaction pet dander, such as the kind from a cat or dog bee stings or bites from other insects certain foods, including nuts and shellfish certain medications, such as penicillin and aspirin certain plants pollen mold dust mites The reasons why allergies develop are unclear, but some substances are known to commonly cause an allergic reaction. People who have allergies are typically allergic to one or more of the following:
- 6. symptoms of anallergic reaction hives, or itchy red spots on the skin rash itching allergic rhinitis, which may lead to symptoms such as nasal congestion or sneezing scratchy throat watery or itchy eyes Mild reaction Symptoms of a mild allergic reaction can include:
- 7. symptoms of anallergic reaction abdominal cramping or pain diarrhea nausea or vomiting pain or tightness in the chest difficulty swallowing difficulty breathing wheezing fear or anxiety heart palpitations flushing of the face swelling of the face, eyes, or tongue dizziness or vertigo weakness and unconsciousness Severe reaction Severe allergic reactions (usually to foods, insect stings, and medications) can cause the following symptoms:
- 8. symptoms of anallergic reaction A severe and sudden allergic reaction known as anaphylaxis can develop just seconds after exposure to an allergen. This type of reaction results in life threatening symptoms, including: swelling of the airway ,an inability to breathe a sudden and severe drop in blood pressure If you experience anaphylaxis, seek immediate emergency help. Without treatment, anaphylaxis can result in death. Anaphylaxis
- 10. How is anallergic reaction diagnosed? A primary care physician or an allergist can diagnose allergic reactions. skin tests challenge (elimination-type) tests blood tests The doctor may want to order tests to determine what’s causing your allergy. The most commonly ordered types of allergy tests are:
- 11. Drug used inAllergic Reation
- 12. Role OF HistamineReceptors
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