Respiratory: Allergic Rhinitis Flashcards

1
Q

What is Allergic rhinitis

A

IgE mediated hypersensitivity triggered by allergens

localized to nose

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2
Q

Biggest risk factor for Allergic rhinitis

A

Personal or FH of asthma/eczema

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3
Q

Episodic Allergic Rhinitis symptoms

A

occur when exposed to allergen outside of normal routine

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4
Q

Intermittent Allergic rhinitis symptoms

A

over <4 days/week or <4 weeks

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5
Q

Persistent Allergic rhinitis symptoms

A

occur >4 days/week or >4 weeks

also known as perennial

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6
Q

Signs and Symptoms of Allergic Rhinitis (most common)

A

Itchy eyes, nose, palate
Watery Rhinorrhea
Repetitive sneezing
nasal congestion

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7
Q

Self treatment exclusions for Allergic Rhinitis

A
Child <12 (make sure not asthma)
Preg/ Lactating
history of non-allergic rhinitis
Symptoms of upper respiratory Tract infection
unresponsive to OTC treatment
unacceptable adverse effects
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8
Q

Treatment of Allergic Rhinitis

A

Avoid allergens

washings stuff, using HEPA filters, avoid outdoor activities when pollen high

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9
Q

Possible non-pharmacologic options for Allergic Rhinitis

A

Sodium Chloride nasal spray, irrigation or drops

don’t share bottles
can be used in children and young babies

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10
Q

When taking pharmacotherapy for allergies, start them….

A

about 1 week prior to anticipated allergen exposure if you get them every year

make sure to use meds regularly rather than episodically

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11
Q

1st line for allergic rhinitis

A

Intranasal steroids

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12
Q

Add on therapy w/ allergic rhinitis of itching and sneezing

A

2nd gen antihistamines

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13
Q

When should you consider intranasal antihistamines

A

if don’t benefit from intranasal steroids or oral antihistamines

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14
Q

Leukotriene Receptor Antagonists not recommended in patients without….

A

asthma

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15
Q

Intranasal Corticosteroids

A

1st line

broad anti-inflame properties that reduce inflammation

Well tolerated..possible nose bleeds or itching/sneezing

oral used for severe cases

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16
Q

Intranasal Corticosteroids counseling

A

shake before use, prime 1st use and if not used for >1 week

Benefits not immediate
Peak response in a few days to 2 weeks

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17
Q

RX only Intranasal Corticosteroids

A

Beclomethasone (QNASL, Beconase AQ)

18
Q

RX/OTC Intranasal Corticosteroids

A

Fluticasone (Flonase)(also approved ophthalmic symptoms)
Triamcinolone (Nasacort)
Budesonide (Rhinocort)
Mometasone (Nasonex)

19
Q

Pharmacotherapy: Antihistamines

A

good for early phase, not so much for late phase stuff

often used in combo with decongestants

20
Q

2nd Gen antihistamines

A

Cetirizine (Zyrtec)
Fexofenadine (Allegra)
Loratadine (Claritin)

21
Q

Most drowsy 2nd gen

A

Zyrtec

avoid in pts who need to be alert

22
Q

2nd gen preferred in pregnancy and pediatrics

23
Q

2nd gen w/ juice interactions

24
Q

Intranasal Antihistamine

A

Azelastine (RX) and Olopatadine (RX)

less effective than oral
might cause sedation

25
Ophthalmic Antihistamines
Ketotifen (OTC),Olopatadine (OTC) Azelastine (RX) useful for allergic conjunctivitis
26
1st gen Antihistamine precautions
``` Infants/Breast feeding caution in elderly Narrow-angle glaucoma BPH GI/GU obstruction ```
27
Mast cell Stabilizer
Cromolyn Sodium (OTC) most effective if started prior to symptoms onset,dont useful after. Take take up to 7 days to see improvement, and 2-3weeks for full effect very safe and well tolerated (Pregnancy, 2yr+, elderly) if taken correctly
28
Oral Decongestants
Pseudoephedrine (BTC) - more effective DDI - MAOIs/TCAs in combo/2 weeks following Phenylephrine (OTC)
29
Intranasal Decongestants
Oxymetazoline 0.05% (OTC) Phenylephrine 0.25%/0.5% (OTC) can cause rebound congestion if used for longer than 3-5 days. takes 1-2 weeks to resolve DDIs- MAOIs and TCAs
30
Decongestant warnings
Avoid pts taking MAOIs and TCAs | Uncontrolled diabetes, thyroid, HTN, CHD, etc
31
Intranasal Anticholinergic Spray
Ipratropium 0.03%/0.06% (RX) dry secretions and decrease runny nose
32
Leukotriene Receptor Antagonist
Montelukast (RX) only one approved for Allergic rhinitis as effective as 2nd gen antihistamines, less intranasal corticosteroids Black box warning psychiatric events Don't recommend for Allergic Rhinitis due to this
33
For Rhinorrhea add on
antihistamine or ipratropium nasal
34
For itching/sneezing add
antihistamine
35
For nasal congestion add
intranasal (limit 3 days) or oral decongestant
36
For ocular symptoms add
INCS fluticasone furoate/propionate or ocular antihistamine
37
For minimal systemic effects use
intranasa cromolyn
38
Pregnant women w/ Allergic Rhinitis
1st line = intranasal cromolyn INCS are safe 2nd gen loratadine preferred Oxymetazoline preferred decongestant Similar for breastfeeding
39
Treating Allergic Rhinitis for children
<12 = doctor to see if asthma if self care ok, loratadine is the choice
40
Treating Allergic Rhinitis for elderly
avoid 1st gen Intranasal cromolyn, Loratodine/ fexofenadine drugs of choice