Allergic rhinitis (hay fever) Flashcards

1
Q

What is allergic rhinitis?

A

Hay fever

occurs after an inflammation response releasing histamine due to allergens being deposited on the nasal mucosa.

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2
Q

In allergic rhinitis, list some common allergens

When is allergic rhinitis worse?

A

Grass pollen, tree pollen, fungal mold spores

Worse when pollen count is high. Peak at May-July, but symptoms may start in April, when tree pollen appears

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3
Q

Define perennial allergic rhinitis

A

year-round symptoms due to house dust mite, animal dander and feathers

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4
Q

Time scale for intermittent allergic rhinitis

A

<4 days/7 or <4 weeks

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5
Q

Time scale for persistent allergic rhinitis

A

> 4 days/7 and >4 weeks

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6
Q

Describe mild allergic rhinitis effect on life

A

normal sleep, normal daily activities including sports, leisure, work/school, symptoms not troublesome

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7
Q

Describe moderate allergic rhinitis effect on life

A

abnormal sleep
impairment of daily activities including sports, leisure.
Problems at work/school
Troublesome symptoms

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8
Q

Treatment timescale of allergic rhinitis

A

with treatment should resolve within 5 days

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9
Q

Symptoms of allergic rhinitis

A
  • Rhinorrhoea
  • nasal congestion
  • nasal itching
  • irritation of roof of mouth
  • itchy and watery eyes, tear duct congestion
  • sneezing
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10
Q

Define rhinorrhoea in hay fever

A

runny nose, thin discharge, clear, watery, but can change to thick, purulent suggesting infection, but no need for antibiotics - treat hay fever as normal

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11
Q

Cause of nasal congestion in hay fever and signs it is severe
Examples of secondary inflammation

A

Nasal congestion is due to inflammatory response causing vasodilatation of nasal blood vessels.
Severe=headaches and earache.
Secondary inflammation= otitis media, sinusitis

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12
Q

what causes the eye symptoms in hay fever?

A

direct inflammation in the eye due to pollen

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13
Q

Describe the pattern of sneezing in allergic rhinitis

A

sneezing is more severe in the morning and evening when pollen rises and settles
Gets better with rain.
If the cause is fungal mould spores, however, then it is worse in damp weather, present in September

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14
Q

referral criteria for allergic rhinitis

A
  • failed medication
  • wheezing/shortness of breath (asthma - sometimes only during summer=seasonal asthma)
  • tightness of chest
  • painful ear
  • painful sinuses
  • painful conjunctivitis
  • failed medication
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15
Q

Lifestyle advice for hay fever/allergic rhinitis

A

sleep with windows closed
avoid being outside when pollen count is high (mid morning/early evening)
get someone else to cut the lawn/grass
avoid stroking animals
drive the car with windows and vents closed
Vacuum regularly

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16
Q

List drugs that treat allergic rhinitis

A

Antihistamines:

  • cetirizine
  • chlorphenamine
  • loratidine

Steroid:
-beclomethasone

Mast cell stabiliser:
-sodium cromoglicate

17
Q

Benadryl one day relief
active ingredient
symptoms

A

cetirizine

Hay fever, sneezing, rhinorrhoea

18
Q

Benadryl one day relief
directions side effects
patient populations

A

one daily
Headache, malaise (discomfort)
Only suitable for >12 years
Fine to use in pregnancy and breastfeeding

19
Q

Piriton allergy tablets
active ingredient
symptoms

A

Chlorphenamine

Hay fever, urticaria (allergic rash), chickenpox itch, insect bites, food allergies

20
Q

Piriton allergy tablets

side effects

A
drowsiness 
dry mouth
blurred vision
constipation 
urinary retention 
sedating effect aids sleep
21
Q

Piriton allergy tablets

patient populations

A

> 6yrs only

suitable in pregnancy and breastfeeding

22
Q

Clarityn rapide allergy tablets
active ingredient
symptoms

A

Loratidine

Symptomatic treatment of allergic rhinitis and chronic urticaria (allergy rash)

23
Q

Clarityn rapide allergy tablets

patient populations

A

> 2years only

Not suitable for breastfeeding or in pregnancy

24
Q

Beconase Hay fever nasal spray
active ingredient
symptoms

A

Beclomethasone

reduces inflammation

25
Q

Beconase hay fever nasal spray
side effects
Warnings
counselling

A

Rare: dryness and irritation of nose and throat, nosebleeds
NOT to be used in glaucoma
Only for use in >18 years for up to 3 months
Not suitable in pregnancy or breastfeeding
Counselling:
Takes several days to see effect
regular use needed

26
Q

Murine hay fever relief eye drops
active ingredient
symptoms

A

sodium cromoglicate
red, itchy, watery eyes
Both seasonal and perennial allergic conjunctivitis

27
Q

Murine hay fever relief eye drops
warnings, side effects
patient populations
counselling

A

May feel mild transient burning/stinging sensation after administration
>6yrs only
Suitable in pregnancy and breastfeeding
Can use mast cell stabiliser for prophylaxis. In recurrent season allergies, use 4 weeks before the start of allergy season
remove contact lenses before applying?