Allergic Reaction Flashcards
Allergic Reaction
exaggerated immune response
Allergen
something that causes an allergic reaction
Anaphylaxis
Anaphylaxis shock
severe or life-threatening allergic reaction in which the blood vessels dilate, causing a drop in blood pressure, and the tissues lining the respiratory system swell, interfering with the airway
Hives
red, itchy, possibly raised blotches on the skin that often result from allergic reactions
Signs and Symptoms of Allergic reaction or Anaphylactic shock
Skin: itchy, hives, flush, swelling of the face, neck, hands, feet or tongue, warm tingling feelings
Respiratory: feeling tightness in throat/chest, cough, rapid breathing, labored breathing, hoarseness muffled voice, stridor, wheezing
Cardiac: increased heart rate, decreased BP
Generalized: itchy, watery eyes, headache, runny nose
Signs and Symptoms of Shock
Altered mental status
Flushed, dry skin or pale, cool clammy skin
Nausea or vomiting
Changes in Vital signs; increased pulse, increased respirations, Decreased BP
Anaphylaxis vs. mild allergic reaction
To be considered a severe allergic reaction, or anaphylaxis, the patient must have either respiratory distress or signs and symptoms of shock
Epinephrine
hormone produced by the body. as a medication, it constricts blood vessels and dilates respiratory passages and is used to relieve severe allergic reactions