Paeds Resp Flashcards
Common benign cause of inspiratory stridor (noisy breathing) in otherwise well infants?
laryngomalacia
Who are the only girls who can develop X-linked conditions?
Those with Turner’s syndrome!
no Y chromosome!
45,X
What is the posh name for croup?
viral laryngotracheobronchitis
What is the commonest cause of stridor?
croup
Which virus causes croup?
parainfluenza
Which age group does croup affect?
6 months - 6 years
esp 2 yr olds
What time of year do kids get croup?
autumn
2 yr old with barking cough, stridor, hoarse cry, fever, preceding coryza. Suspect?
Croup
“barking cough”. What FLASHES across your mind?
croup
ruff ruff ruff
What kind of noisy breathing does croup cause?
stridor
Is stridor when you breathe out or when you breathe in?
stridor is INSPIRATORY
A child has croup. What will their cry be like?
hoarse
What is the treatment for croup?
ORAL DEXAMETHASONE 0.15MG/KG
if severe - high flow O2 + nebulised adrenaline
When do you give oral dexamethosone 0.15mg/kg?
CROUP
What is the emergency treatment for SEVERE croup?
high flow O2, nebulised adrenaline
What colour is the epiglottis in epiglottitis?
cherry red.
What infective agent causes epiglottitis?
HiB
Haemophilus influenza B
What don’t you do when a child has epiglottitis?
examine the throat
could cause complete obstruction
The fever in croup tends to be <38.5. True or false.
True
croup = low-grade fever
The fever in epiglottitis tends to be >38.5. True or false.
True
epiglottitis = high-grade fever
A 5 yr old presents with soft stridor, fever of 39.5, minimal cough, sitting immobile with her mouth open drooling saliva. What do you do??
epiglottitis. Don’t examine the throat.
Call ENT and anaesthetists … INTUBATE under GA
After you’ve intubated a child with epiglottitis to save their airway, what do you do next to treat it?
blood cultures … IV Abx
rifampicin to contacts
My child has had epiglottitis. What should I be taking?
rifampicin
What is a disease similar to acute epiglottitis, caused by Staph aureus?
Bacterial tracheitis (needs tracheal intubation under GA + IV Abx)
What infective agent causes bacterial tracheitis? (high fever and ill)
Staph aureus
Stridor is obstruction of which airways?
trachea / larynx
extrathoracic airways
Wheeze is partial obstruction of which airways?
intrathoracic airways
Is wheeze breathing out or breathing in?
EXPIRATORY
in exp, the intrathoracic airways are collapsed, so turbulent flow - wheeze
How many airways obstructed in monophonic wheeze?
one (e.g. foreign bod, carcinoma)
mainly polyphonic
Kate. Give me 6 causes of ACUTE WHEEZE in kids.
bronchiolitis viral episodic wheeze asthma anaphylaxis foreign bod atypical pneumonia
What season do kids usually get bronchiolitis?
winter
Give me 4 symptoms of croup.
barking cough
stridor
hoarse cry
low grade fever
Give me 4 symptoms of bronchiolitis.
dry wheezy cough
coryza
breathlessness
feeding difficulties
On examination of a child with bronchiolitis, what might you see? What might you hear?
tachycardia + tachpnoea
intercostal recession
hyperinflated chest
fine end inspiratory crackles
expiratory wheeze
You suspect a child has bronchiolitis. You listen to the chest. What are you expecting Doc?
fine end inspiratory crackles
expiratory wheeze
What age group does bronchiolitis affect?
<1yr old
What infective agent causes bronchiolitis?
RSV
Name three groups of kids at increased risk of severe bronchiolitis.
ex prems with bronchopulm dysplasia
cystic fibrosis
congenital heart disease
What is the investigation for bronchiolitis?
nasopharyngeal aspirate (NPA)
check sats.
if severe - CXR, ABG .. exclude pneumonia
If bronchiolitis is severe, what do you need to exclude?
pneumonia
What is the treatment for bronchiolitis?
O2 aim >94%
IV fluids
if bad - CPAP
If bronchiolitis is severe, what treatment?
CPAP
How do you prevent bronchiolitis in prems?
IM monthly injections of PALIVIZUMAB
What is prevalence of CF?
1 in 2,500
What is prevalence of CF carriers?
1 in 25
CF is autosomal recessive. Which chromosome is affected?
chromosome 7
delta F508
Which is the defective protein in CF?
CFTR
transmembrane conductance regulator
= abnormal Cl- ion transport across epi = THICK SECRETIONS
What effects can CF have on the resp system? (x3)
pneumonia (pseudomonas)
allergic bronchopulmonary aspergillosis
bronchiectasis
What effects can CF have on the intestines? (x3)
meconium ileus
rectal prolapse
malabsorption
What effects can CF have on the pancreas? (x2)
DIABETES MELLITUS
steathorroea (malabsorption)
What effects can CF have on the reproductive system (esp men)?
INFERTILITY
What test is diagnostic for CF?
sweat test
shows high chloride in sweat
Describe some aspects of the management of CF?
chest physio; postural drainage
pancreatic enzymes with meals - high fat, high kCal
may need heart + lung transplant
What age should viral episodic wheeze have improved by?
5yrs
What usually triggers viral episodic wheeze?
URTI
small airways more likely to narrow when inflamed
Name a key risk factor for viral episodic wheeze.
Maternal smoking.
What is a multiple trigger wheeze?
wheeze in pre-school age triggered by not just viral but lots of different precipitants
including cold air, exercise, dust, animal dander
Kate. Give me 6 causes of RECURRENT WHEEZE in kids.
viral episodic wheeze multiple trigger wheeze asthma cystic fibrosis bronchopulm dysplasia GORD
What proportion of UK children have asthma?
1 in 11
Give me three features of asthma pathophysiology.
bronchial infl. - mucus + swelling
bronchial hyper-responsiveness
reversible airway obstruction
THE BIG ASTHMA FOUR symptoms
wheeze
cough
breathlessness
chest tightness
When are asthma symptoms worse?
in morn / at night
Give me some pointers that point the finger towards asthma.
in morn / at night non viral triggers symptoms between attacks FHx atopy response to asthma therapy!
What are the investigations for asthma?
Peak flow diary (PEFR)
spirometry
What would peak expiratory flow rate diary show to suggest asthma?
diurnal variation
What would expect from asthma spirometry?
low FEV 1
low FEV1/FVC
= OBSTRUCTIVE picture
WITH BRONCHODILATOR REVERSIBILITY!!!
Give me some examples of asthma triggers.
URTI allergens smoking cold air exercise emotion chemical irritants
Give me 2 examples of SABAs (short acting beta2 agonists)
salbutamol
terbutaline
Give me an example of an anti-cholinergic bronchodilator
ipratropium bromide
Give me 3 examples of inhaled corticosteroids.
beclometasone
budenoside
fluticasone
Give me 3 examples of LABAs (long acting beta2 agonists)
salmeterol
formeterol
What kind of drug is Montelukast (oral)?
leukotriene receptor antagonist
A child presents to A+E having an asthma attack. She can talk, her O2 sats are >92%. Some intercostal recession. Is this moderate, severe of life-threatening?
moderate
A child presents to A+E having an asthma attack. She is too short of breath to talk..her sats are <92%. HR >140/min. RR >40/min. She is using accesssory neck muscles to breathe. Is this moderate, severe, or life-threatening?
severe
A child presents to A+E having an asthma attack. She has a silent chest, cyanosis and altered consciousness. This is life-threatening. What might you find about her:
- heart
- breathing
- BP
arrythmias
poor resp effort
hypotension
What is the treatment of chronic asthma for <5yr old child?
SABA
+ ICS
+ leukotriene
+ refer to resp paediatrician
What is the treatment of chronic asthma for >5yr old child?
SABA \+ ICS \+ leukotriene \+ increase ICS dose / add theophylline \+ oral pred \+ refer to resp paediatrician
What is the treatment of a MODERATE asthma attack?
1,
2,
salbutamol via spacer (max 10 puffs)
oral pred
What is the treatment of a SEVERE asthma attack? 1, 2, 3, 4,
+/- …. / …… /……
- high flow O2
- salbutamol via spacer/ neb
- oral pred / IV hydrocortisone
- inhaled ipratropium bromide
+/- IV salbutamol / aminophylline / Mg
In severe asthma, what would you expect from the HR and RR?
HR >140
RR >40
In a moderate asthma attack, what is their peak flow like?
> 50% of their best
In a severe asthma attack, what is their peak flow like?
<50% of their best
In a life-threatening asthma attack, what is their peak flow like?
<33% of their best
What is the treatment for a LIFE-THREATENING asthma attack? 1, 2, 3, 4,
+/- ….. / ….. / …..
- high flow O2
- salbutamol nebs
- oral pred / IV hydrocortisone
- nebulised ipratropium bromide
+/- IV salbutamol / aminophylline / Mg
If the treatment for life-threatening asthma attack is not working………
PICU
senior review
CXR, ABG
…. mech vent :/
The child has responded to treatment for her asthma attack and is doing much better :) What now?
continue bronchodilators PRN
discharge when stable on 4hrs treatment
continue oral pred for 3-7ds
You’ve discharged a child after her asthma attack, with PRN bronchodilators and a supply of oral pred for 3-7ds. What else does she need?
follow up arranged for…
personalised asthma action plan
review meds and inhaler technique
What dose of oral pred should you discharge a child on after an asthma attack?
1-2mg/kg OD
In severe asthma attack, you’ve given high flow O2, salbutamol neb, IV hydrocortisone. What else?
inhaled ipratropium bromide
+/- IV salbutamol / aminophylline / Mg
What are the 3 Ts of asthma counselling
adherence to Treatment
inhaler Technique
avoid Triggers
what IV Abx for acute epiglottitis?
iv cefuroxime
Give me 4 types of upper respiratory tract infection (URTI)
- common cold
- pharyngitis, inc tonsillitis
- sinusitis
- acute otitis media
Sore throat, coryza and asthma exacerbation can by symptoms of URTI. What else?
febrile seizures feeding difficulties (blocked nose, can't breathe)
Common virus culprit of the common cold (coryza)?
rhinovirus
self limiting, paracetamol + ibuprofen
infectious mononucleosis a.k.a.
glandular fever
Give me two common bugs causing pharyngitis (sore throat)
Group A strep throat
adenovirus
Give me two common bugs causing tonsillitis (sore throat, type of pharyngitis)
Group A strep throat
EBV (glandular fever)
What criteria are used to estimate the probability that pharyngitis / tonsillitis is bacterial (strep).
Centor criteria
Centor criteria are used to estimate probability that pharyngitis/tonsillitis is bacterial (strep) rather than viral. What are the 5 criteria which score points?
- age (3-14)
- exudate
- cervical lymphadenopathy
- fever >38
- absent cough
What is treatment for tonsillitis?
Pen V 10 days
or erythromycin
(if unable to swallow may need IV fluids + analgesia)
inflammation of paranasal sinuses may occur with URTI. occasionally there is secondary bac infection (pain + sweeling of cheek, maxillary sinus). if so, what Rx
Abx + analgesia
when is acute otitis media most common and why?
6-12 months
short Eustachian tubes
Where in particular would you examine if you suspected acute otitis media, and what would you expect to see?
tympanic membrane
red, bulging, loss of light reflection
Give me three potential complications of acute otitis media
mastoiditits
meningitis
glue ear if recurrent
Give me 5? bacterial causes of acute otitis media.
rhinovirus, RSV
penumococcus, Hib, moraxella
What is the treatment for acute otitis media
ANALGESIA
NOT ANTIBIOTICS
only if >3days
When would you give antibiotics for an ear infection?
if lasts longer than 3 days
amoxicillin
(Abx marginally shorten pain but dont decrease the risk of hearing loss)
otitis media with effusion =
glue ear
What kind of hearing loss does glue ear cause?
conductive hearing loss
What is the treatment for glue earm if persistent?
grommets
ventilation tubes. only last 12 months
If your child has got bad glue ear, and grommets have not worked, what might be considered?
adenoidectomy
Give me two indications for adenoidectomy.
- bad glue ear
2. obstructive sleep apnoea
Give me two indications for tonsillectomy.
- recurrent severe tonsillitis
2. peritonsillar abscess (quinsy)
Quinsy a.k.a
peritonsillar abscess
Do children usually get hypoxic / tachypnoeic with URTI?
no - infeciton of conducting airways, as opposed to respiratory, so doesnt usually affect gas exchange.
URTI is an infection of which airways.
conducting airways
so doesnt usually affect gas exchange
What three infections in kids does pneumococcus tend to cause?
otitis
bronchitis / pneum
meningitis
What four infections in kids does Hib tend to cause?
otitis
epiglottitis
pneumonia
meningitis
what counts as a persistent cough?
not improved after 4 wks
what does a ‘habit cough’ sound like?
dry barking
give me some causes of PERSISTENT cough in a child
smoking asthma recurrent URTIs TB bac bronchitis persistent lobar collapse after pneum aspiration + GORD habit cough whooping cough!
What bug causes whooping cough?
bordetella pertussis
how contagious is whooping cough?
highly, mainly in catarrhal phase
NOTIFIABLE
tell me the three phases of whooping cough.
catarrhal
paroxysmal
convalescent
What happens in the catarrhal phase of whooping cough?
week of coryza
What happens in the paroxysmal phase of whooping cough?
spasmodic cough + inspiratory whoop
red / blue in face, mucussy
In paroxysmal phase of whooping cough, get spasmodic cough + inspiratory whoop. Go red / blue in face and mucus flows from nose / mouth. How long does this phase tend to last?
~3 months
sometimes called 100 day cough
Paroxysmal phase of whooping cough can be really bad. As well as spasmodic cough, if it’s severe what else might happpen?
epistaxis!
subconjunctival haemorrhage!
break ribs, hernia!
vom
does pertussis vacccination guarantee protection?
no but decreases risk and severity
In paroxysmal phase of whooping cough can have epistaxis, subconjunctival haemorrhage, break ribs, hernia and vom. Give me three longer term complications of whooping cough.
pneumonia
seizures
bronchiectasis
A child presents with spasmodic cough and inspiratory whoop. What investigations?
per nasal swab (for culture / PCR if severe)
FBC
What would FBC show in whooping cough?
lymphocytosis
You have done per nasal swab and culture which confirmed whooping cough. What is the treatment?
Macrolide Abx within 3 wks of onset
CLARITHROMYCIN
(erythromycin if preg)
(fluids, para + ibuprofen)
close contacts - clarithromycin prophylaxis
What age group does whooping cough particularly affect?
infants <3 months
Is whooping cough a notifiable disease?
yes
The child chokes, gasps and flails the extremities, with eyes bulging and watering and face reddened. There is frequently post-cough vomiting. What is the likely diagnosis?
whooping cough
When do you admit a child with whooping cough
<6months acutely unwell
or any age if resp difficulties
When should clarithromycin be started in whooping cough?
within 3 wks
Does clarithromycin do anything to alter the clinical course of whooping cough?
NO it just decreases the length of INFECTIVITY
Why has the whooping cough vaccination been extended to pregnant women ?
to give neonates protection for the time before they get vaccine
What is the incubation period for whooping cough?
7-21 days
A 2 yr old is being treated for whooping cough with clarithromycin. What should you give his dad who is his main carer?
clarithromycin
Persistent WET cough. Give me two key differentials.
bac bronchitis
bronchiectasis
Infection — inflammation — airway damage — bad mucociliary escalator — infection etc. What’s this?
bronchiectasis
What happens in bronchiectasis (persistent wet cough)?
infection — inflammation — airway damage — bad mucociliary esclator – infection etc.
Do you get tachypnoea / hypoxia in bac bronchitis (persistent wet cough)?
no its conducting airways not resp airways so gas exchange not usually affected
Give me two bac that cause bac bronchitis (persistent wet cough).
moraxella catrrhalis
Hib
What investigations for bac bronchitis (tends to be Hib and moraxella).
sputum culture
bronchial lavage
Child has persistent wet cough. You’ve confirmed bac bronchitis with sputum culture which shows moraxella. How do you treat?
co-amoxiclav
CHEST PHYSIO
co-amoxiclav to treat..
bac bronchitis
clarithrommycin to treat..
whooping cough
Pen V to treat..
tonsillitis
amoxicillin to treat..
otitis media if >3ds
CF is a cause of generalised bronchiectasis. Give me one another thing.
primary ciliary dyskinesia.
Post- severe pneumonia is a cause of focal bronchiectasis. Give me one other thing.
inhaled foreign body.
as per
inflammation of lung parenchyma
(exlcuding bronchi)
What’s this ?
pneumonia
Define pneumonia.
inflammation of lung parenchyma
excluding bronchi
What bugs tend to cause pneumonia in neonates?
Group B strep
Hib
What bugs tend to cause pneumonia in <5yrs?
RSV + VIRUSES mainly
What kind of pneumonia should you make sure to consider in all ages?
TB!
What bugs tend to cause pneumonia in >5yrs?
strep pneum
mycoplasma pneum
chlamydia pneum
the pneumoniae bacteria!
Strep pneum, mycoplasma pneum, chlamydia pneum
tend to cause pneumonia in what age group?
> 5yrs
What 2 bugs causes pneumonia in imm supp?
pneumocystis jiroveccii
toxoplasma gondii
What bug causes pneumonia in CF?
pseudomonas
What bug causes aspiration pneumonia?
E.coli
What pneumonia can chickenpox cause?
varicella pneumonitis
Give me 6 symptoms of pneumonia from the history.
fever cough
lethargy poor feeding
chest/abdo/neck pain
preceding URTI
On examination, give me 6 signs you might get in pneumonia.
TACHYPNOEA Tachycardia low sats nasal flaring chest indrawing coarse end-inspiratory crackles
What might you hear on the chest of a child with pneumonia?
coarse end-inspiratory crackles
coarse end-inspiratory crackles. What FLASHES across your mind?
pneumonia
7 yr old child presents with fever, cough, chest pain and lethargy. On examination, she has tachypnoea, tachycardia, and nasal flaring. What bugs might be the likely culprit?
strep pneum
chlamydia pneum
mycoplasma pneum
3 yr old child presents with fever, cough, and poor feeding. On examination she has chest in-drawing, low stats and coarse end-inspiratory crackles. What bugs might be the likely culprit?
RSV + VIRUSES! (<5yrs)
What might you expect to see on CXR for lobar pneumonia?
CONSOLIDATION
What are the four stages of lobar pneumonia?
congestion — red hepatization — grey hepatization – resolution
Investigations for suspected pneumonia?
?nasopharyngeal aspirate (can distinguish bac/viral)
?CXR (not routine)
What is the treatment of pneumonia for a neonate?
broad spec IV Abx (BenPen)
supportive - O2 + analgesia + IV fluids
The majority of bacterial pneumonia are..
strep pneumoniae
What is the treatment of pneumonia for a <5yr old?
oral amoxicllin
supportive - O2 + analgesia + IV fluids
What is the treatment of pneumonia for a > 5 yr old?
oral amoxicillin OR erythromycin
supportive - O2 + analgesia + IV fluids
i want four complications of pneumonia.
parapneumonic effusion
empyema
bronchiectasis
persistent lobar collapse