Asthma Treatments Flashcards

1
Q

What are symptoms of asthma?

A

Wheezing
Shortness of breAth
Tightness of chest
Worse at night

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2
Q

What are the risk factors for asthma?

A
Food allergies
Family history
Early exposure to smoke
Child hood - adult
Occupational
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3
Q

What are the triggers for asthma?

A
Exposure to allergen
Cold air exercise
Pollutants
Emotion
Drugs ( aspirin b blockers)
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4
Q

What are the long term aims of asthma therapy?

A

Abolish symptoms
Maintain optimal lung function
Prevent death from acute attack
Avoid side effects

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5
Q

What are the two types of asthma treatments?

Name some egs?

A
Relievers ( bronchioles dilators)
Salbutamol 
Salmeterol 
Ipratropium
Theophylline
Preventers anti inflammatory 
Beclometasone 
Montelukst
Sodium cromoglicate
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6
Q

Relievers act on which receptors?

A

A2 b2

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7
Q

Salbutamol has a similar structure to which nt ?

What will this cause?

A

Adrenaline

It’s a b2 selective agonist causes smooth muscle relaxation

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8
Q

What are the side effects of relievers?

A

Tremor
Increased HR ( if dose high enough will bind to b1 receptors which will increase HR)
Nervous tension headache
Hypocalcaemia

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9
Q

What are the different methods of taking relievers drugs?

A

Inhaler metered dose - coordinator is an issue

Spacer - spray drug into device and then breath in

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10
Q

Why are steroids used in the prevention or treatment of asthma?

A

It reduces inflammation which reduces mucus secretion, oedema, damaged airways

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11
Q

Glucocorticoid are given to prevent asthma attacks for eg beclometasone how long after starting treatment will symptoms improve ?

A

3-7 days

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12
Q

What is the advantage of using combination inhalers?

Give an eg ?

A

It does both maintenance and relief and it means don’t need to carry 2
Eg symbicort

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13
Q

Explain the mechanism of steroids?

A
The bind with receptors
Then combine with another complex
Then crosses nucleus membrane 
Steroid then either switches on gene
Which increases mRNA
Increases protein production or the opposite
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14
Q

What are the unwanted effects of steroids?

A

Oral thrush or infection to vocal cords

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15
Q

What is the treatment for acute asthma attacks

A

Oral steroids, prednisolone

, short high dose for 7 days

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16
Q

What are the side effects of steroids

A
Buffalo hump 
Moon face 
Hypertension 
^ abdomenal fat 
Poor wound healing 
Stunted growth
17
Q

What is the danger or stopping steroid treatment quickly

A

Body can’t produce corticosteroid naturally due to high amounts already in blood this causes neg feedback of natural corticosteroid

18
Q

What is the side effects of antimuscarinic bronchodilators?

A

Dry mouth, short acting

19
Q

What does cromones do ?

A

Inhibit the chemical release from mast cells to prevent a bronchospasm, used for allergies and excersise

20
Q

What treatment can be used for under 5’s for asthma

A

Leukotriene receptors antagonists eg montelukast and zafirlukast- block receptors and prevent inflammation

21
Q

Which treatment for asthma can cause high HR, platatations and headache and only has a narrow therapeutic window

A

Theophylline, oral or IV in server- blocks an enzyme in airways causes muscles to relax

22
Q

What does Omalizumab do for asthma sufferers

A

Monocolonical antibody which reduces effects of allergen, may cause brushing and pain on injection

23
Q

What is the 5 stages of asthma treatment ?

A
  1. Inhaled short acting B2 agonist
  2. Inhaled steroids
  3. Inhaled long lasting B2+ increased dose of inhaled steroids
  4. Short and long acting B2 + inhaled steroids + another drug
  5. Continuous use of oral steroids
24
Q

What is asthma?

A

It is a condition which is assoc with airway hyper responsiveness, reversible airway limitation, bronchial inflammation.