Asthma Flashcards

1
Q

Pathphys of cough

A

cough is a protective action –> initiated both voluntary and by cough receptors in respiratory tract
*receptors send signals to cough center (medulla) –> signal to vagus, phrenic, and spinal motor nerves –> cough

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2
Q

Assessing kids in respiratory distress

A

Speaking in full sentences?

SOB when speaking?

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3
Q

Causes of cough in kids

A
Infection
Inflammation
Irritation
Anatomic
Psychogenic
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4
Q

Acute Cough

A

more likely infectious or clear precipitating event

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5
Q

Chronic cough

A

more likely to mean it is not a life-threatening because symptoms have been tolerated for so long

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6
Q

Descriptors of a cough

A
Dry - irritant or asthma
Wet/productive - lower respiratory infection
Barky - croup
Paroxysmal - pertussis, foreign body
Worse at night - sinusitis or asthma
Gagging - GERD
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7
Q

Wheeze

A

high-pitched whistling sound made when airway is narrowed by inflammation

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8
Q

Shortness of breath

A

difficulty breathing or sensing you are short of breath

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9
Q

ROS in kid with cough

A
Fever? - infection
Change in voice? - chronic rhinitis or GERD
Choking event? - foreign body or GERD
Chest pain? - GERD or asthma
Head ache? - sinusitis
Sore throat? - post-nasal drip or URI
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10
Q

Pulmonary TB in kids

A

systemic symptoms are uncommon –> most symptoms are from bronchial compression (wheeze, cough)
CXR - hilar adenopathy with some mild hyperinflation

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11
Q

DDx for cough in kid

A

Asthma - common, cough worse at night (shiners)
Allergies - also common, post-nasal drip
Sinusitis
Bronchitis - clinical diagnosis from chronic cough and congestion from URI
GERD - worse at night
Atypical PNA - viral causes or atypical (influenza, adenovirus, mycoplasma)

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12
Q

Sign and Symptoms of Bacterial Sinusitis

A

TONS of similarity between viral URI and sinusitis

  • Sinusitis = persistence of symptoms
  • purulent nasal discharge with fever
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13
Q

Bacterial Sinusitis

A

Same bugs as AOM
Factors - allergies, URI, CF, thick mucus, trauma, polyps
Diagnosis - persistent symptoms, worsening cough, severe onset
Tx - amoxicillin

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14
Q

Tracheal deviation

A

suggest a mass or PTX

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15
Q

Retractions

A

seen in obstructive airway disease, asthma, foreign body,

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16
Q

Accessory muscle use

A

sign of significant respiratory distress

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17
Q

Hyperinflated thorax

A

increased AP chest diameter –> air-trapping from obstructive lung disease

18
Q

Increased I:E

A

increased expiration time –> obstructive disease

19
Q

Percussion

A

Hyperresonance - air-trapping (mucus plug, obstructive)

Dullnes - consolidation (PNA)

20
Q

Egophony

A

EE and AA –> consolidation

21
Q

Wheezing

A

sound of airflow through narrowed airways –> sign of asthma or reactive airway disease
- musical sounds (usually during expiration)

22
Q

Rhonchi

A

continuous low-pitched sounds during inspiration/expiration

- due to mucus/secretions in airway

23
Q

Crackles

A

heard on inspiration due to fluid in alveoli –> PNA

24
Q

Stridor

A

high-pitched inspiratory noise from airway obstruction of extrathoracic airway (trachea or larynx)

25
Q

Atopy

A

predisposition to IgE associated allergic reactions –> allergic rhinitis, asthma and eczema
- house dust mites, animal dander, ragweed, pollen

26
Q

Management of Allergies

A

reduce exposure

Meds: antihistamines, anti-leukotrienes, nasal sprays

27
Q

Diagnosing asthma

A

Nature of symptoms
Precipitating factors
Family History
Spirometry is best

28
Q

Metered Dose Inhalers

A

good for delivering meds –> use spacer

29
Q

Adthma epidemiology

A

1 in 13 kids effected by asthma

30
Q

Pathophsy of asthma

A

biphasic inflammatory response

  1. early reaction with mast cells and eosinophils –> PGs and LTs –> mucus and bronchoconstriction
  2. later –> neutrophils, eosinophils, lymphocytes –> epithelial destruction and remodeling
31
Q

Long-term management of asthma

A

1 - Classify severity based on PFTs
2 - Gain control quickly
3 - minimize use of beta-2 agonists
4 - multfactorial management

32
Q

Inhaled steroids for asthma

A

use for patients with persistent symptoms

  • inhaled = quicker onset and lower dose
  • take time before fully effective
33
Q

Types of asthma therapy

A

Rescue medication - SABA (beta-2 agonist like albuterol)

Maintenance medication - LABA or inhaled steroid

34
Q

Peak flow meter

A

measures peak expiratory flow rate (PEFR)

  • keeping diary helps determine effectiveness of therapy
  • helps manage exacerbation in ED
35
Q

Spirometry

A

measures active lung volume

FEV1/FVC

36
Q

Obstructive disease spirometry

A

reduced airflow and airway trapping

- low FEV1 and low ratio of FEV1/FVC

37
Q

Restrictive disease spirometry

A

low FEV1 but proportionate low FVC –> no change in ratio

38
Q

Asthma Action Plan

A

mainstay of asthma management

- easy to follow instructions based on symptoms and peak flow readings

39
Q

Follow up for asthma

A

every 2-6 weeks until well controlled –> then every 6 months to a year

40
Q

Checklist for families about asthma

A
  1. know how to use peak flow meter and inhalers
  2. asthma diary
  3. understand asthma action plan
  4. know triggers
  5. ongoing assessment