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Paediatric rotation > Paediatric respiratory > Flashcards

Paediatric respiratory Flashcards

1
Q

What are the signs of respiratory distress?

A

Raised RR
Intercostal and subcostal recessions
Use of accessory muscles
Nasal flaring
Head bobbing
Tracheal tugging
Cyanosis
Abnormal airway noises

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2
Q

What are the respiratory failure red flags?

A

Drowsiness
Lethargy
Cyanosis
Tachycardia
Laboured breathing

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3
Q

What is croup also known as?

A

Acute Laryngeotracheobronchitis

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4
Q

What was croup previously caused by and what did it lead to?

A

Diptheria and lead to epiglottitis

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5
Q

What is the cough in croup due to?

A

Upper airway infection causing oedema and mucosal inflammation in the larynx

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6
Q

When does croup tend to occur?

A

6 months-6 years. Peaks at 2-3 years.

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7
Q

At what time of year is croup most common?

A

Autumn and Spring

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8
Q

Is croup more common in boys or girls?

A

Boys

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9
Q

What is the cough like in croup?

A

Barking cough

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10
Q

What is the main causative pathogen of croup?

A

Parainfluenza virus

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11
Q

Apart from parainfluenza virus, what are the other causes of croup?

A

Influenza, adenovirus and RSV (Respiratory syncytial virus), enterovirus

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12
Q

What are the main symptoms of mild croup?

A

Occasional barking cough with no audible stridor, no recession, child eating and drinking as normal

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13
Q

What are the main symptoms of moderate croup?

A

Frequent barking cough with audible stridor at rest, suprasternal recession, child not agitated

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14
Q

What are the main symptoms of severe croup?

A

Frequent barking cough, prominent stridor, marked sternal recession, agitated and distressed child potentially with tachycardia.

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15
Q

What is the examination and history for croup?

A

1-4 days history of non-specific rhinorrhea, fever and barking cough
Worse at night
stridor
decreased bilateral air entry
tachypnoea
costal recession
Hoarse voice
low grade fever

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16
Q

What might you do for diagnosis and rule out DDx for croup?

A

FBC, CRP U+E
CXR to exclude foreign body

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17
Q

How long can symptoms of croup last?

A

48 hrs-1 week

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18
Q

What is the management for most children with croup?

A

Fluid and rest at home

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19
Q

What drug do you give to treat croup?

A

Single dose of oral dexamethasone 0.15mg (150 mcg/kg)or nebulised budesonide/prednisolone

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20
Q

How do you treat severe croup?

A

Oral dexamethasone, oxygen, nebulised budesonide/adrenline and adrenaline, intubation and ventilation if needed (in stepwise progression)

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21
Q

What are the complications of croup?

A

Otitis media
Dehydration due to reduced fluid intake
Superinfection: Pneumonia

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22
Q

What is acute epiglottitis?

A

Acute upper airway obstruction due to swelling of the epiglottis and surrounding tissue. it is a medical emergency!

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23
Q

What pathogen causes acute epiglottitis?

A

Haemophilis influenzae B

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24
Q

What sounds will a child with acute epiglottitis be making?

A

Soft inspiratory stridor with no cough
Muffled voice

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25
Q

How might a child with acute epiglottitis present apart from sounds

A

Unable to speak or swallow (drooling).
Sitting upright with open mouth to optimise airway. (tripod position) Sore throat in septic looking child
high fever
scared and quiet child

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26
Q

What should you not do if acute epiglottitis is suspected?

A

Do not examine throat

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27
Q

What will a lateral x ray of the neck show?

A

Characteristic thumb sign

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28
Q

What drug is given to children with acute epiglottitis?

A

IV cefuroxime
And steroids (dexamethosone)

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29
Q

What is a common complication of apiglottitis?

A

Epiglottic abscess

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30
Q

What has reduced the incidence of acute epiglottitis?

A

Introduction of the HiB vaccine

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31
Q

What might an unvaccinated child presenting with a fever, sore throat and difficulty swallowing that is sitting forward and drooling have?

A

Epiglottitis

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32
Q

What is whooping cough also known as?

A

Pertussis

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33
Q

What is whooping cough?

A

Bacterial URTI

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34
Q

What pathogen causes Whooping cough?

A

Bordetella Pertussis (highly contagious)- gram negative bacillus

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35
Q
A
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36
Q

When are vaccinations given against whooping cough?

A

2,3,4 months, booster at 3 years 4 months

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37
Q

What are the sounds of whooping cough?

A

Inspiratory whoop (forced inhalation against a closed glottis)

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38
Q

When is the cough in whooping cough worse?

A

At night

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39
Q

What can the cough in whooping cough causes?

A

vomiting, cyanosis, epistaxis and subconjunctival haemorrhages, pneumothorax.

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40
Q

How long does the paroxysmal phase of Whooping cough last?

A

3-6 weeks but can last months

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41
Q

What is the clinical presentation of whooping cough?

A

Catarrhal phase: lasts 1-2 weeks: coryzal symptoms
Paroxysmal phase: occurs weeo 3-6: characteristic “inspiratory whoop”
Spasmodic coughing episodes
low grade fever
Sore throat
Convalescent phase: downgrade of cough lasting up to 3 months

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42
Q

How do you investigate whooping cough?

A

Per nasal swab culture
(FBC and antibody test)

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43
Q

What is the treatment for whooping cough lasting less than a month?

A

Azithromycin 5 days

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44
Q

What is the treatment for whooping cough lasting more than a month?

A

Azithromycin/Erythromycin 7 days

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45
Q

What are the complications of whooping cough?

A

Seizures
Pneumonia
Bronchiectasis
Encephalopathy
Otitis media

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46
Q

What is the most common LRTI in children?

A

Bronchiolitis

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47
Q

What is the most common respiratory illness in children?

A

Bronchiolitis

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48
Q

What is bronchiolitis?

A

Viral infection of the bronchioles (inflammation)

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49
Q

What ages are most common for bronchiolitis?

A

1-9 months- rarely up to two years old (children who are ex-premature with chronic lung disease)

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50
Q

When does bronchiolitis peak?

A

Winter and Spring

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51
Q

What pathogen mainly causes bronchiolitis?

A

RSV (very infectious)( Respiratory Syncytial Virus)

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52
Q

What other 2 pathogens can cause bronchiolitis?

A

parainflueza virus, human metapneumovirus

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53
Q

What are the risk factors for bronchiolitis?

A

Breastfeeding<2 months
Smoke exposure
Older siblings who attend nursery/school
Chronic lung disease of prematurity

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54
Q

What are the main symptoms of bronchiolitis?

A

Symptom onset in 2-5 days Coryzal, breathlessness, poor feeding, Fine end inspiratory crackles, high pitched wheeze, cyanosis (on feeding), cough. signs of respiratory distress, tachypnoea, dyspnoea, mild fever, apnoeas

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55
Q

What is the typical course of RSV?

A

coryzal symptoms and half then get better. Other half have chets sympotms over days1-2, worst symptoms 3-4 and usually last 7-10 days, fully recover in 2-3 weeks.

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56
Q

What are infants who have bronchiolitis more likely to have in childhood?

A

Viral induced wheeze

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57
Q

What are the abnormal airway noises heard in bronchiolitis?

A

Wheezing (on expiration), grunting and stridor

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58
Q

What is wheezing?

A

whistling sound heard on expiration caused by narrowed airways

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59
Q

What is grunting?

A

exhaling sound with the glottis partially closed to increase positive end-expiratory pressure

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60
Q

What is stridor?

A

high pitched inspiratory noise caused by obstruction of the upper airway

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61
Q

What 2 investigations can you do for bronchiolitis?

A

PCR analysis of nasal secretions for RSV
FBC, Urine, Blood gas if severely unwell
CXR- not usually but shows hyperinflation, air trapping and flattened diaphragm

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62
Q

What might you see on a CXR in bronchiolitis?

A

Hyperinflation

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63
Q

What would suggest urgent hospital admission in bronchiolitis?

A

Apnoea
Resp rate >70
Central cyanosis
SpO2<92 %

64
Q

What would suggest non-urgent admission in bronchiolitis?

A

Resp rate>60
Clinical dehydration

65
Q

What drug can be used to prevent bronchiolitis?

A

Palivizumab

66
Q

What kind of drug is palivizumab?

A

Monoclonal antibody

67
Q

Which children may get palivizumab to prevent bronchiolitis?

A

CF, immunocompromised, congenital heart disease, Downs

68
Q

What is pneumonia?

A

Infection of the lower respiratory tract and lung parenchyma which leads to consolidation

69
Q

What are the characteristic chest sounds of pneumonia?

A

Bronchial breath sounds, focal coarse crackles, dullness to percussion

70
Q

What general cause of pneumonia is most common in infants?

A

Viral

71
Q

What general cause of pneumonia is more common in older children?

A

Bacterial

72
Q

Which pneumonia is more common in winter; viral or bacterial?

A

Viral

73
Q

What is the most common bacterial cause of pneumonia?

A

Streptococcus pneumonia

74
Q

What bacteria causes pneumonia in pre-vaccinated infants during birth?

A

Group B strep

75
Q

If staphylococcus aureus causes pneumonia, what might be seen on the chest x ray?

A

Pneumoceles and consolidation in multiple lobes

76
Q

Apart from streptococcus pneumonia, Group B strep and staphylococcus aureus, what can cause paediatric pneumonia?

A

Group A strep

77
Q

What is the most common viral cause of paediatric pneumonia?

A

Respiratory Syncytial virus (RSV)

78
Q

Apart from RSV, what other viral causes are there of paediatric pneumonia?

A

Parainfluenza virus and influenza virus

79
Q

What are the causes of pneumonia in neonates and which is most common (put 1st)

A

Group B strep
E.coli
Klebsiella
Staph aureus

80
Q

What is the main cause of pneumonia in infants?

A

Strep pneumoniae

81
Q

What are the causes of pneumonia in neonates and which is most common (put 1st)

A

Strep pneumoniae
Staph aureus
Group A strep
Mycoplasma pnuemoniae

82
Q

What is the clinical presentation of pneumonia?

A

Fever
SOB
Lethargy
Signs of respiratory distress
Auscultation signs: dullness to percuss, crackles, decreased breath sounds, bronchial breathing
Wheeze and hyperinflation more typical of viral infection

83
Q

What 4 investigations should you do for paediatric pneumonia?

A

CXR, Sputum cultures, blood cultures and ABG

84
Q

What is the medication management of paediatric pneumonia?

A

Amoxicillin and a macrolide

85
Q

Why is a macrolide adding to treatment of paediatric pneumonia?

A

To cover atypical pneumonia

86
Q

Give three examples of macrolides

A

Erythromycin, clarithromycin and azithromycin

87
Q

What is the medication treatment for paediatric pneumonia when the patient has a penicillin allergy?

A

Macrolides as monotherapy

88
Q

What is the medical treatment of neonates with pneumonia?

A

Broad spectrum IV Abx

89
Q

What is the medical management of infants with pneumonia?

A

Amoxicillin/ co-amoxiclav

90
Q

What is the medical management of over 5s with pneumonia?

A

Amoxicllin/Erythromycin

91
Q

What are the complications of pneumonia?

A

Risk of parapneumonic collapse and empyema

92
Q

If a patient is getting recurrent LRTIs, what conditions do you want to check for?

A

Reflux, aspiration, neurological disease, heart disease, asthma, CF, primary ciliary dyskinesia and immune deficiency.

93
Q

What immunoglobulin do you test to check for immunoglobulin class-switch recombination therapy?

A

G

94
Q

What is immunoglobulin class-switch recombination therapy?

A

Where a patient is unable to convert IgM to IgG and therefore cannot form long term immunity to that bug.

95
Q

A patient comes in with cough, high fever, tachypnoea, tachycardia, increased work of breathing, lethargy and delirium. What could this be?

A

Pneumonia

96
Q

A patient comes in with increased work of breathing, barking cough, hoarse voice, stridor and a low grade fever. What could this be?

A

Croup

97
Q

A patient comes in with progressively worsening SOB, signs of respiratory distress, tachypnoea and expiratory wheeze. What could this most likely be?

A

Acute exacerbation of asthma

98
Q

A patient comes in with episodic symptoms of dry cough with wheeze and SOB. Has diurnal variability with widespread polyphonic wheeze. What could this most likely be?

A

Chronic Asthma

99
Q

A patient comes in with coryzal symptoms, signs of respiratory distress, dyspnoea, tahcypnoea, mild fever and wheeze and crackles on ascultation. What could this most likely be?

A

Bronchiolitis

100
Q

An unvaccinated child comes in with a sore throat and stridor, drooling, tripod positioning, high fever and a muffled voice. What could this most likely be?

A

Epiglottitis

101
Q

What can asthma be triggered by?

A

Infection, exercise or cold weather

102
Q

What is the most chronic condition in children?

A

Asthma

103
Q

What is asthma?

A

Reversible paroxysmal constriction of the airways with inflammatory exudate and followed by airway remodelling

104
Q

Do people with asthma have an inspiratory wheeze or expiratory wheeze?

A

Expiratory wheeze

105
Q

What are the levels of severity of acute asthma?

A

Moderate, Severe and life threatening

106
Q

If a patient has peak flow > 50% predicted and normal speech, how severe is the acute episode of asthma?

A

Moderate

107
Q

If a patient has a peak flow < 50% predicted and is unable to complete sentences in 1 breath, how severe is the acute episode of asthma?

A

Severe

108
Q

What percentage of predicted peak flow rate is considered to be life threatening?

A

<33%

109
Q

What RR in a child aged 3 is considered to be severe in asthma?

A

> 40

110
Q

What RR in a child aged 7 is considered to be severe in asthma?

A

> 30

111
Q

What HR in a child aged 4 is considered to be severe in asthma?

A

> 140

112
Q

What HR in a child aged 8 is considered to be severe in asthma?

A

> 125

113
Q

What is the aetiology of asthma?

A

Genetic
Prematurity
Low birth weight
Parental smoking
Viral bronchiolitis in early life
Cold air
Allergen exposure

114
Q

What are the clinical presentations of asthma?

A

Episodic wheeze which is infrequent
Dry cough often worse at night
SOB
Wheeze
Reduced peak flow

115
Q

What type of bronchodilator is salbutamol?

A

Beta-2 agonist

116
Q

What type of bronchodilator is ipratropium bromide?

A

Anti-muscarinic

117
Q

What bronchodilators can you give in an acute asthma attack?

A

Salbutamol, ipratropium bromide, IV magnesium sulphate, IV aminophylline

118
Q

What are the steps for a moderate/severe asthma attack?

A
  1. Salbutamol inhaler
  2. nebuliser with salbutamol/ipratropium bromide
  3. oral prednisolone
  4. IV hydrocortisone
  5. IV magnesium sulphate
  6. IV salbutamol
  7. IV aminophylline
119
Q

What side effects can salbutamol causes?

A

Tachycardia and Tremor

120
Q

What are the 4 investigations for asthma?

A

Spirometry with reversibility testing- highly suggestive of asthma
Direct bronchial challenge test with histamine or methacholine
Fractional exhaled nitric oxide- ENO levels of nitric oxide correlate to inflammation
Peak flow variability- FEV1 is significantly reduced, FVC normal, FEV1:FVC may be <70 % if poorly controlled

121
Q

What is the first step for the management of all children with asthma?

A
  1. short-acting beta 2 agonist inhaler (salbutamol)
122
Q

What is the second step for the management of children under 5 with asthma?

A

SABA + trial ICS (belclomethasone)

123
Q

What is the second step of the management of children with asthma?

A

ICS- Beclomethasone

124
Q

What is the third and fourth step in the management of children over 5 with asthma?

A
  1. Long-acting beta 2 agonist inhaler (salmeterol)
  2. Titrate up corticosteroid and consider adding oral leukotriene receptor antagonist ( montelukast) or oral theophylline
125
Q

Is cystic fibrosis autosomal dominant or recessive?

A

Recessive

126
Q

What glands does cystic fibrosis affect?

A

Mucous glands

127
Q

What is cystic fibrosis caused by?

A

A genetic mutation on the cystic fibrosis transmembrane conductions regulatory gene on chromosome 7

128
Q

What is the most common variant of cystic fibrosis mutations?

A

Delta-F508

129
Q

What does the delta-F508 gene code for?

A

cellular channels particularly chloride channels

130
Q

What percentage of people are carriers of CF?

A

1 in 25

131
Q

What percentage of children have CF?

A

1 in 2500

132
Q

What are the three main consequences of CF?

A

Thick pancreatic and biliary secretions
Low volume thick airway secretions
Congenital bilateral absence of the vas deferens

133
Q

What is the test at birth that screens for CF?

A

Newborn bloodspot test

134
Q

What is often the first sign of CF?

A

Meconium Ileus

135
Q

What are the common presentation signs of CF?

A

Chronic cough, recurrent RTIs, steatorrhoea, failure to thrive, abdominal pain and bloating

136
Q

What signs might a child show on their hands if they have CF?

A

clubbing

137
Q

What are the causes of clubbing in children?

A

Hereditary, Infective endocarditis, TB, liver cirrhosis, cyanotic heart disease, CF, IBD

138
Q

What is the gold standard test for diagnosing CF?

A

Sweat test

139
Q

How do you test for CF during pregnancy?

A

Amniocentesis or chronic villous sampling

140
Q

What common bacteria is often resistant to abx and can cause morbidity and mortality in CF?

A

Paseudomonas aeruginosa

141
Q

How do you prevent staphylococcus aureus infection in CF patients?

A

Prophylactic flucloxacillin

142
Q

What medical treatment can you give for patients with CF?

A

Prophylactic flucloxacillin and CREON tablets

143
Q

What is viral induced wheeze?

A

Episodic wheeze- a symptom of viral URTI and symptom free between events.

144
Q

In what age does viral wheeze tend to present?

A

Before 3 years old

145
Q

What is the management of viral induced wheeze?

A

SABA inhaler via spacer max 10 puffs/4 hourly
LTRA and ICS via spacer

146
Q

Who does respiratory distress syndrome affect?

A

premature neonates, before the lungs start producing adequate surfactant, common in below 32 week babies.

147
Q

What is the pathophysiology of respiratory distress syndrome

A

Inadequate surfactant leads to high surface tension within alveoli leading to atelectasis (lung collapse) as it is more difficult for the alveoli and the lungs to expand leading to inadequate gaseous exchange and hypoxia, hypercapnia and respiratory ditress.

148
Q

What is the management of respiratory distress syndrome?

A

Dexamethasone is given to mothers with suspected or confirmed preterm labour to increase production of surfactant and reduce incidence of respiratory distress syndrome
Intubation and ventilation may be needed
Endotracheal surfactant (artificial) delivered into the lungs via an endotracheal tube
CPAP
Supplementary oxygen to maintain sats 91-95%

149
Q

Short term complications of respiratory distress syndrome?

A

Pneumothorax
Infection
Apnoea
Intraventricular haemorrhage
Pulmonary Haemorrhage
Necrotising Enterocolitis

150
Q

Long term complications of respiratory distress syndrome?

A

Chronic lung disease of prematurity
Retinopathy of prematurity
Neurological, hearing and visual impairment

151
Q

What is bronchopulmonary dysplasia?

A

Infants who still require oxygen at a postmenstrual age of 36 weeks are described as having BPD.

152
Q

What is the pathophysiology of BPD?

A

The lung damage comes from pressure and volume trauma of artificial ventilation, oxygen toxicity and infection

153
Q

What is the choice of investigation in BPD?

A

CXR

154
Q

What does a CXR show in BPD?

A

Widespread areas of opacification and sometimes cystic changes, fibrosis and even lung collapse

155
Q

What is the management of BPD?

A

Infants are weaned onto CPAP and potentially corticosteroids however there is risk of neurodevelopment with these

156
Q

What are the major complications of BPD?

A

Intercurrent infection leading to death or pulmonary hypertension

Paediatric rotation (14 decks)

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