92 Moderate to Severe Allergic Reaction Flashcards
What are the INDICATIONS for the ALLERGIC REACTION medical directive?
Exposure to a probable allergen
Signs and symptoms of a moderate to severe allergic reaction
What are the CONTRAINDICATIONS for EPINEPHRINE in the ALLERGIC REACTION medical directive
Allergy to epinephrine
What are the CONDITIONS for EPINEPHRINE in the ALLERGIC REACTION medical directive?
For anaphylaxis only
What is the MAX dose for EPINEPHRINE in the ALLERGIC REACTION medical directive?
0.5mg
What is the DOSE for EPINEPHRINE in the ALLERGIC REACTION medical directive?
0.01mg/kg up to 0.5mg
What is the dosing INTERVAL for EPINEPHRINE in the ALLERGIC REACTION medical directive?
5 minutes
How MANY doses can you give for EPINEPHRINE in the ALLERGIC REACTION medical directive?
2
What is the ROUTE of administration for EPINEPHRINE in the ALLERGIC REACTION medical directive?
IM
What is the MAXIMUM dose weight for EPINEPHRINE in the ALLERGIC REACTION medical directive?
50kg
Why is Epinephrine ideal for anaphylaxis in comparison to Diphenhydramine?
Relieves upper airway obstruction
Fixes HoTN
What type of shock is anaphylaxis
Distributive
What causes shock in anaphylaxis?
Mast cells release histamine creating a widespread inflammatory response
How does the body respond to histamine
Vasodilation
Increased capillary permeability
WBC produce leukotrienes
What is the DRUG CLASS of EPINEPHRINE?
Sympathomimetic
Adrenergic agonist
What receptors does epinephrine affect?
Alpha 1
Alpha 2
Beta 1
Beta 2
What are the effects of EPINEPHRINE for ANAPHYLAXIS
A1: vasocontricts arterioles in the skin, increases preload
B1: positive inotrope, dromotrope, chronotrope
B2: bronchodilates the lungs
Inhibits histamine, stabilizes mast cells permeability
Epinephrine administration or IV access
Epinephrine administration
What are the CONTRAINDICATIONS for DIPHENHYDRAMINE in the ALLERGIC REACTION medical directive?
Allergy to diphenhydramine
What are the CONDITIONS for DIPHENHYDRAMINE in the ALLERGIC REACTION medical directive?
over 25 kg
What is the DIVISIONAL WEIGHT for DIPHENHYDRAMINE in the ALLERGIC REACTION medical directive?
25kg, 50kg
What is the DOSE for 25kg-50kg DIPHENHYDRAMINE in the ALLERGIC REACTION medical directive?
25mg
What is the DOSE for 50kg DIPHENHYDRAMINE in the ALLERGIC REACTION medical directive?
50mg
What is the dosing INTERVAL for DIPHENHYDRAMINE in the ALLERGIC REACTION medical directive?
N/A
How MANY doses can you give for DIPHENHYDRAMINE in the ALLERGIC REACTION medical directive?
1
What is the ROUTE of administration for DIPHENHYDRAMINE in the ALLERGIC REACTION medical directive?
IV/ IM
What is the DRUG CLASS of Diphenhydramine?
Antihistamine
Anticholinergic
How does Diphenhydramine affect histamine receptors
non-selective and competitive
binding to H1 receptors
How does diphenhydramine work?
Competitively binds to H1 receptors
Reduces the amount of histamine
Mast Cell stabilizer
What does Diphenhydramine not fix in allergic reactions?
Hypotension
Airway swelling