ch 21 Flashcards

(41 cards)

1
Q

What is an allergic reaction

A

An exaggerated immune response to a substance

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2
Q

What is an allergen

A

A substance that causes an allergic reaction

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3
Q

What is anaphylaxis

A

A severe reaction to an allergen that has entered the body. the immune system releases histamines which can damage body systems

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4
Q

What are common causes of anaphylaxis

A

Foods insect stings medications latex

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5
Q

What are the two most common signs of anaphylaxis

A

Urticaria (hives) and airway swelling

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6
Q

What are respiratory symptoms of anaphylaxis

A

Wheezing stridor dyspnea tightness in chest or throat

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7
Q

What are cardiovascular symptoms of anaphylaxis

A

Hypotension weak pulse dizziness syncope

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8
Q

What are skin signs of an allergic reaction

A

Flushed skin itching hives (urticaria) swelling (angioedema)

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9
Q

What gastrointestinal symptoms can occur with anaphylaxis

A

Nausea vomiting diarrhea abdominal pain

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10
Q

How quickly can anaphylaxis occur

A

Within seconds to minutes of exposure

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11
Q

What is the treatment for anaphylaxis

A

Administer epinephrine provide oxygen and rapid transport

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12
Q

What is the preferred route for epinephrine administration in anaphylaxis

A

Intramuscular (IM) injection

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13
Q

What is the adult dose of epinephrine via auto-injector

A

0.3 mg IM

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14
Q

What is the pediatric dose of epinephrine via auto-injector

A

0.15 mg IM

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15
Q

Where is epinephrine administered

A

Lateral thigh (vastus lateralis muscle)

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16
Q

What does epinephrine do

A

Constricts blood vessels relaxes airway muscles increases heart rate

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17
Q

When should you assist with epinephrine administration

A

When the patient has a prescription and meets criteria

18
Q

What should you do after giving epinephrine

A

Reassess airway breathing circulation and prepare for transport

19
Q

What is the priority if the patient is not breathing or has no pulse

A

Begin CPR and follow BLS protocols

20
Q

What should you ask in SAMPLE history for allergy patients

A

Known allergies exposure prior reactions epinephrine use

21
Q

What is the difference between mild and severe allergic reactions

A

Mild reactions are localized while severe involve respiratory or circulatory compromise

22
Q

A 24-year-old woman was stung by a bee and now has hives wheezing and low blood pressure

A

Anaphylaxis administer epinephrine and transport rapidly

23
Q

A child ate a peanut butter cookie and now has facial swelling difficulty breathing and is vomiting

A

Anaphylaxis administer pediatric epinephrine auto-injector and provide oxygen

24
Q

A man with a known shellfish allergy eats shrimp and develops hives but has no trouble breathing or blood pressure issues

A

Mild allergic reaction monitor and transport if needed no epinephrine unless it progresses

25
A woman with a latex allergy develops a rash and slight swelling 10 minutes after putting on gloves
Mild allergic reaction remove exposure monitor closely
26
A man presents with confusion low blood pressure wheezing and hives after taking a new antibiotic
Anaphylactic shock give epinephrine and support airway and circulation
27
A teen has throat tightness hoarse voice and trouble swallowing after eating kiwi
Airway compromise from anaphylaxis administer epinephrine and prepare for airway support
28
A girl with no known allergies suddenly develops severe urticaria and shortness of breath after taking an ibuprofen
Suspect new allergic reaction with anaphylaxis give epinephrine and monitor ABCs
29
A patient is unconscious and pulseless shortly after a bee sting
Begin CPR and BLS request ALS administer epinephrine if available
30
A boy who received epinephrine for anaphylaxis now has a fast heart rate and is anxious but breathing well
Continue monitoring provide oxygen and transport immediately
31
A patient has hives and states they feel like their throat is closing but are still speaking clearly
Administer epinephrine early and prepare for potential airway obstruction
32
What must be present to diagnose anaphylaxis
Airway breathing or circulatory compromise
33
Why is early epinephrine administration important
It greatly improves outcomes and prevents rapid deterioration
34
What are expected side effects of epinephrine
Increased heart rate anxiety and pale skin
35
When might a second dose of epinephrine be needed
If symptoms return or worsen after the first dose
36
What is a biphasic reaction
When allergic symptoms return hours after the first reaction resolved
37
What is the most dangerous symptom of anaphylaxis
Airway swelling
38
When should you contact medical control for epinephrine
If your protocol requires permission to administer it
39
How often should you reassess ABCs in an allergic reaction
Frequently because condition can worsen quickly
40
What are signs of anaphylactic shock
Cool pale clammy skin weak pulse and low blood pressure
41
What should you document after giving epinephrine
Time of administration patient response and any changes