Asthma Flashcards

1
Q

Recurrent resp infections always represent a serious underlying pathology

A

F
The child may have :
-a simply managed cause for their symptom (viral resp infection)
-or there is evidence of a more serious underlying pathology (immune dysfunction)

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2
Q

hx is enough To assess the severity and dg the cause of the sympt

A

F
Hx
PE
Appropriate investigation

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3
Q

To diagnose asthma at least one of the following criteria has to be present:

A

*RECURRENT** episodes of
Wheezing
Shortness of breath
Coughing
Chest tightness

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4
Q

Asthma symptoms get better at night

A

F
They worsen at night and in response to exercise and cold weather (september to April) (automn and winter)

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5
Q

Asthma is the most common chronic dz in children

A

T
It is a common and non communicable dz of the lungs affecting both children and adults

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6
Q

Asthma is characterized by chronic airway infection of large airways

A

F
Of small airways

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7
Q

When is the usual onset of asthma (childhood or adulthood)

A

Childhood

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8
Q

Genetic is the main cause of asthma

A

F
Environmental factors are the main cause of asthma

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9
Q

How is the incidence of asthma changing

A

It is increasing due to increase in exposure to environmental allergens and irritants

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10
Q

RF for developing asthma

A

-genetic
-allergy or atopy
-urbanization is associated with increased risk of asthma
-GI reflux dz
-events in early life that affect development of lungs (low birth wt, premature)
-obesity

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11
Q

Environmental factors ( indoor and outdoor air pollution, house dust mites, chemicals, pets and danders) are the only cause of asthma

A

F
Also genetics

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12
Q

1) Recurrent viral colds

A
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13
Q

The common cold is caused by viruses that infect the nose, throat and sinuses
And it is more common in fall and winter

A

T

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14
Q

Young children can get as many as 3 colds each year

A

F
8 to 10

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15
Q

How much is the duration of symps in common cold

A

8 days ( 1 week)
But may extend beyond 2 weeks

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16
Q

What are the symps of common cold

A

-fever
-sore throat
-cough
-rhinorrhea
-nasal congestion

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17
Q

Isolated viral colds always do require further evaluation

A

F
They require further evaluation in case of :
-frequency is >15 times per year
-duration is >15d per episode

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18
Q

2) chronic rhinitis

A
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19
Q

Define chronic rhinitis

A

Chronic inflammation of the nasal mucosa that results in symptoms:
-congestion
-nasal discharge
-sneezing
For at least 30mins daily for 2 or more months

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20
Q

The cause of chronic rhinitis is always allergic

A

F
Allergic or non allergic

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21
Q

The pathophysiology of asthma involves both:
-airway inflammation of the bronchi and bronchioles
-intermittent airway obstruction due to contraction of smooth muscle—> bronchial hyper responsiveness

A

T

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22
Q

What are the signs of asthma

A

-breathlessness (dyspnea) (shortness of breath)
-wheezing when exhaled
-chest tightness or pain
-cough that worsen at night
Productive or dry cough (usually chronic)

23
Q

Wheezing upon exhalation is not a common sign of asthma in children

A

F
It is a common sign of asthma

24
Q

Pts have stable asthma for weeks or months and suddenly develop an episode of acute asthma
Often the symptoms are triggered by certian factors, list them:

A

Triggering factors are:
-viral upper resp infection: URTI
-Exercise
-cold
-tobacco exposure
-psychological stress: alters the IS and inc in airway inflammatory response to allergens
-Emotional upset
-home factors :dust, animals, dander, chemical, perfumes, Pets, Aero allergin

25
Personal or family hx of other atopic condition is present in asthmatic person
T
26
Asthmatics respond well to -Betta blockers (propranolol) -ACE inh -Aspirin -NSAIDS
F These makes asthma worse !! They respond well to bronchodilators
27
Conditions occur more frequently with asthma
-GERD -atopic dermatitis (eczema; urticaria) -obstructive sleep apnea -rhino sinusitis
28
Suspect asthma in any child who has: **persistent productive cough** and **hx of episodes of wheezy chest**
T Associated with -Fam hx -Allergic hx -Triggering factor -psychological stress
29
What is the tool used to dg asthma
Spirometry is the recommended test to confirm the dg of asthma
30
In spirometry pt should take deep breath and exhale forcefully, where it measures the amount of airflow to breath in and out and the rate of flow
T
31
Spirometry indicates only dg of asthma
F It is used for **dg** and **assessment of severity** of asthma
32
What is the gold standard method to dg asthma
Spirometry
33
At what age is spirometry perfomed
From age 5 and above
34
Spirometry is performed only before bronchodilators
F Before and after in order to assess the reversibility Bcs spirometry demonstrates reversible airflow obstruction
35
List the values of FEV1( it represent the percentage of the lung capacity that one can expel in second)
FEV1 (>80%) N FEV1 65-79% mild obstruction FEV1 50- 65% moderate obstruction FEV1 <50% severe obstruction
36
How much should the FEV1 improve for dg of asthma
It should improve by > than 12% and increase by at least **200ml** following administration of bronchodilators
37
Caffeine is a bronchoconstrictor
F It is a bronchodilator thus it intervenes with the result of spirometer
38
In a child <5 y we cant do spirometer How to dg the child
Dg steps are same as before A trial of asthma med may help to establish dg—> reversal symps after administration of albuterol
39
Differential diagnosis
40
1) immuno deficiency disorder
41
The resp system is the organ system most commonly involved in immunodeficiency disorder
T
42
What are the clinical manifestations to suspect an immune defect
-unusual severity -atypical presentation -unresponsive to typical tx -recurrent
43
We should suspect immunodeficiency when we have:
- >= 8 new **ear infection** within 1y - >= 2 serious **sinus infection** or **pneumonia** within one year - >= 2 **sepsis or meningitis** - >= 2months of **Abx** with little effect - need IV Abx or hospital to tx infection - FTT - Resistant superficial or oral candiasis - recurrent tissue or organ abcess - infection with opportunistic organisms - Fam hx
44
Cellular immuno deficiencies are the most common
F Defects in humoral immunity (50%) Humoral and cellular (20-30%) Phagocyte defect (18%) Complement defect (<2%)
45
2) chronic post infective cough What is chronic cough
Cough that appeared with acute infection Normally cough should subside within 2-6m
46
Most common bacterias associated with chronic cough
Bordetella M. Pneumonia
47
The post infective cough results from **bronchial hyper activity** and **impaired mucociliary clearance** that follow and inflammation that occurs with these infections
T
48
3) inhaled foreign body It should be suspected in any child who develops persistent dry cough
F **persistent productive cough** particularly after Hx of chocking
49
What does the severe inflammation in the bronchial mucosa due to foreign body lead
Obstruction of airways followed by distal infection
50
Airway damage is resolved after removal of FB
F There may be persistent -localised airway damage -abnormal lung ft -cough
51
4) disorders of celia ft Primary celiary dyskinesia is an auto dominant
F Auto R dz (males and females are equally affected)
52
Primary ciliary dyskinesia have abnormal mucociliary clearance
T
53
Clinical manifestations of ciliary dysfunction in newbons
-nasal obstruction -mucopurulent discharge -pneumonia -tachypnea
54
Clinical manifestations of ciliary dysfunction in older children
- PERSISTENT PRODUCTIVE COUGH - atypical asthma - severe GER - bronchiectasis - chronic purulent rhinitis - sinusitis - chronic secretory OM with effusion and deafness