Chapter 21: Allergic Reactions
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Questions and Answers

Which of the following symptoms would indicate potential respiratory distress in a patient experiencing an allergic reaction?

  • Increased heart rate
  • Runny nose
  • Tightness in the throat (correct)
  • Sense of impending doom
  • What general finding would NOT typically be associated with an allergic reaction?

  • Chest pain (correct)
  • Wheezing
  • Decreased blood pressure
  • Hoarseness
  • Which sign might suggest that a patient is experiencing shock related to an allergic reaction?

  • Decreased heart rate
  • Increased blood pressure
  • Increased respiratory rate
  • Decreased blood pressure (correct)
  • What symptom might lead a healthcare provider to suspect a severe allergic reaction?

    <p>Labored breathing</p> Signup and view all the answers

    Which of the following is a classic respiratory sign of an allergic reaction?

    <p>Stridor</p> Signup and view all the answers

    What psychological symptom might a patient with an allergic reaction report?

    <p>Sense of impending doom</p> Signup and view all the answers

    What is the term used for a severe allergic reaction?

    <p>Anaphylaxis</p> Signup and view all the answers

    What is one of the primary indicators that could necessitate the administration of epinephrine?

    <p>Initial assessment findings</p> Signup and view all the answers

    Which of the following is considered an allergen?

    <p>Dust particles</p> Signup and view all the answers

    In an allergic reaction, which vital sign changes may occur?

    <p>Increased heart rate</p> Signup and view all the answers

    What symptom is NOT typically associated with allergic reactions?

    <p>Increased heart rate</p> Signup and view all the answers

    Which symptom is least likely to be reported by a patient experiencing an allergic reaction?

    <p>Visual disturbances</p> Signup and view all the answers

    Which symptom indicates a possible allergic reaction that requires immediate airway management?

    <p>Swelling of the tongue</p> Signup and view all the answers

    Which of the following conditions could complicate an allergic reaction?

    <p>Decreasing mental status</p> Signup and view all the answers

    In cases of allergic reactions, what is the first step in emergency care?

    <p>Manage the patient’s airway</p> Signup and view all the answers

    Which of the following categories of substances typically does NOT cause allergic reactions?

    <p>Minerals</p> Signup and view all the answers

    What is a common sign of an allergic reaction that may manifest on the skin?

    <p>Hives</p> Signup and view all the answers

    Which of the following statements about allergic reactions is true?

    <p>They represent exaggerated immune responses.</p> Signup and view all the answers

    What is a typical initial treatment for managing an allergic reaction?

    <p>Administration of adrenaline</p> Signup and view all the answers

    What symptom is often experienced in the respiratory system during an allergic reaction?

    <p>Chest tightness</p> Signup and view all the answers

    What is the primary goal when a patient has an epinephrine auto-injector and is experiencing a severe allergic reaction?

    <p>To rapidly administer the medication</p> Signup and view all the answers

    Which of the following is NOT a serious sign that indicates the need for immediate administration of epinephrine?

    <p>Chronic cough</p> Signup and view all the answers

    What should be assessed before administering an epinephrine auto-injector?

    <p>The presence of respiratory distress and hypoperfusion</p> Signup and view all the answers

    Which of the following actions is recommended if a patient does not have an epinephrine autoinjector and is experiencing a severe allergic reaction?

    <p>Transport the patient immediately</p> Signup and view all the answers

    What is the mechanism of action of epinephrine in treating allergic reactions?

    <p>Dilation of bronchioles and constriction of blood vessels</p> Signup and view all the answers

    What is the typical adult dosage for an epinephrine auto-injector?

    <p>0.3 mg</p> Signup and view all the answers

    Which of the following side effects could a patient experience after receiving epinephrine?

    <p>Increased heart rate</p> Signup and view all the answers

    What is the first step to take when assessing a patient with a suspected allergic reaction?

    <p>Perform a focused history and physical examination</p> Signup and view all the answers

    When is the use of epinephrine contraindicated?

    <p>There are no contraindications in an emergency</p> Signup and view all the answers

    Which of these constitutes a SAMPLE history assessment in an allergic reaction scenario?

    <p>Signs, Allergies, Medication, Past medical history, Events leading to issue</p> Signup and view all the answers

    Study Notes

    Chapter 21: Allergic Reactions

    • Allergic reactions are exaggerated immune responses to substances contacting the body
    • A severe allergic reaction is called anaphylaxis or an anaphylactic reaction
    • Allergens are substances commonly causing allergic reactions (e.g., insect bites/stings, foods, plants, medications)
    • Causes of allergic reactions include foods, insect bites, medications, and plants
    • Signs and symptoms of allergic reactions may include warm tingling feelings in the face, mouth, chest, feet, hands, itching, hives, red skin, swelling of face, neck, hands, feet and/or tongue
    • Respiratory system symptoms include patient feeling tightness in the throat/chest, cough, rapid breathing, labored breathing, noisy breathing, hoarseness, stridor, wheezing
    • Cardiac symptoms include increased heart rate, and decreased blood pressure
    • Generalized findings of allergic reactions include itchy, watery eyes, headache, a sense of impending doom, runny nose, decreasing mental status
    • Assessment findings revealing shock (hypoperfusion) and severe respiratory distress suggest a severe allergic reaction

    Emergency Care for Patients with Allergic Reactions

    • Perform initial assessment
    • Perform focused history and physical exam (history of allergies, what patient was exposed to, how they were exposed, effects, progression, interventions)
    • Assess baseline vital signs and SAMPLE history
    • If patient has prescribed preloaded epinephrine, administer it
    • If no preloaded epinephrine is available and patient has no epinephrine auto-injector, transport immediately

    Epinephrine

    • A medication used to dilate bronchioles, prevent tissue swelling, constrict blood vessels, and increase heart's ability to pump blood
    • Auto-injector: a device administering a preset dose of medication via intramuscular self-injection
    • Indications include assessment revealing patient with a severe allergic reaction, respiratory compromise and/or hypoperfusion.
    • Contraindications are none in emergency situations
    • Actions of epinephrine: Dilates the bronchioles, constricts blood vessels
    • Dosage: Adult – one adult auto-injector (0.3 mg); Infant and child – one infant/child auto-injector (0.15 mg)
    • Side effects may include increases heart rate, pallor, dizziness, chest pain, headache, nausea, vomiting, excitability, anxiousness

    Use of the Auto-Injector

    • Steps are shown in the slides.

    Emergency Care of Allergic Reaction

    • If patient does not have signs of respiratory distress or shock (hypoperfusion), continue focused assessment
    • If patient does not have wheezing or without signs of respiratory distress or shock (hypoperfusion), administer high-flow oxygen and transport

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    Description

    Explore the complex world of allergic reactions in this quiz based on Chapter 21. Learn about the causes, symptoms, and severe responses like anaphylaxis. Test your understanding of allergens and how they affect the body.

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