Paeds resp, cardio, renal Flashcards
What is the proper medical name for croup?
Viral laryngotracheobronchitis
At what point of the year is croup most common?
Autumn
What age group is affected by croup?
6m to 6y, peak 2y
What is the main cause of croup?
Parainfluenza
Recall 3 differentials for croup
Laryngomalacia, acute epiglottitis, inhaled foreign body
Recall the signs and symptoms of croup
1st = coryzal symptoms, 2nd = barking cough (from vocal cord impairment) and stridor
What investigations should be done for croup?
Clinical diagnosis
DO NOT EXAMINE THROAT
How should croup be managed?
Westley score determines admission
Admit if RR>60, or complications
DEXAMETHOSONE TO ALL
For mild: discharge
For moderate: admit
For severe: admit and add nebulised adrenaline to dex
For impending respiratory failure: same as severe
What is the most likely complication of croup?
Secondary bacterial superinfection
What is the most common cause of acute epiglottitis?
Haemophilus influenza B (bacteria!!!!) hence is quite uncommon as vaccinated against
What are the signs and symptoms of acute epiglottitis?
It’s a medical emergency No cough as in croup High-fever ('toxic-looking') Stridor is soft inspiratory with high RR "Hot potato" speech Drooling as child cannot swallow Immobile, upright and open mouth - 'tripod sign'
How should acute epiglottitis be investigated and managed?
Do not lie child down or examine their throat (may precipitate a total obstruction)
- Immediately refer to ENT, paeds and anaesthetics –> transfer and secure airway
- Once airway is secured, blood culture, empirical Abx (cefuroxime) and dexamethosone
In what age range is bronchiolitis seen?
1-9 months, 3-6 month peak
What is the most common cause of bronchiolitis?
RSV in 80%
What are the signs and symptoms of bronchiolitis?
1st = coryzal symptoms which progress to 2nd = dry, wheezy cough, SOB, grunting
What are the examianation findings in bronchiolitis?
To distinguish from croup/ other ‘itis’
Auscultate: fine, bi-basal, end-inspiratory crackles
What investigations should be done in bronchiolitis?
It’s a clinical diagnosis but can do an NPA to confirm
If there is significant respiratory distress + fever, do a CXR to rule out pneumonia
What are the criteria for hospital admission in bronchiolitis?
Hospital admission:
If <2 months, lower threshold as they deteriorate quickly- apnoea/ cyanosis/ grunting
- Poor oral fluid intake
- SpO2 < 92% on normal room air
Supportive care: nasal O2, NG fluids/ feeds, CPAP if respiratory failure
Over how long is bronchiolitis self-limiting?
2 weeks
Describe the ‘spectrum’ of infant asthma
Bronchiolitis if <1y
Viral-induced wheeze (1-5y)
Asthma (>5)
Describe the wheeze in asthma
End-expiratory polyphonic
When are asthma symptoms worst?
Night/ early morning
What will be seen OE in childhood asthma?
Hyperinflated chest + accessory muscle use
Harrisson’s sulci - depressions at base of thorax where diaphragm has grown in muscular size
How should childhood asthma be diagnosed?
<5 years old = clinical diagnosis
>5 years old = spirometry, beonchodilator, PEFR variability
Recall the PEFR range of moderate, severe, and life-threatening asthma
Moderate: 50-75%
Severe: 33-50%
Life-threatening: <33%
When should you admit a child with asthma?
When they are classified as severe or life-threatening?
How should paediatric asthma be managed in a hospital setting?
- Burst step
- 3 x salbutamol nebs, or up to 10 inhales on a pump
- 2 x ipratropium bromide nebs (SE of too much = shivering, vomiting)
- Involve seniors if burst therapy has failed to work - IV Bolus step = give one of the following: MgSO4, salbutamol, aminophylline
- Infusion step
- IV salbutamol/ aminophylline - Panic step
- Intubate and ventillate
Recall 4 contraindications of beta-agonists/ salbutamol
Beta-blockers, NSAIDs, adenosine, ACE inhibitors
Recall the outpatient management of asthma in children
- SABA
- ICS
- 2-16 yo LTRA
- ICS increased dose
- Oral steroid
What is the most common cause of rhinitis?
Rhinovirus
What is rhinitis more commonly known as?
Common cold
What is the general recovery time for rhinitis?
2 weeks
What are the possible complications of rhinitis?
Otitis media, acute sinusitis
What is sinusitis?
Infection of the maxillary sinuses from viral URTIs
May lead to a secondary bacterial infection
How should sinusitis be managed?
If symptoms last <10 days
- no Abx, advise them that virus will take 2-3w to resolve, simple analgesia
If symptoms last >10 days, high dose nasal CS for 14 days
- this may improve symptoms but is unlikely to reduce duration of illness
- Give back up prescription of Abx
When should a pt be admitted to hospital for sinusitis?
Severe systemic infection
Intraorbital/ periorbital problems (eg periorbital cellulitis, diplopia)
Why are children particularly vulnerable to otitis media?
Eustacian tubes are short, horizontal and function poorly
What are the 3 most common causative organisms in otitis media?
H influenza, S. pneumoniae, RSV
What investigations should be done in otitis media?
Temperature, otoscopy
What would be seen on otoscopy in otitis media?
Bright red bulging tympanic membranes, loss of normal light reaction, perforation and pus
Recall 3 indications for admission in acute otitis media
Severe systemic infection
Complications (eg meningitis, mastoiditis, facial nerve palsy)
Children <3 months with a temperature >38
When should abx be given in otitis media?
Delayed prescription if not better after 3 days or if it gets suddenly worse
Immediate Abx prescription if systemically unwell, age <2 yo
If there is a perforation: oral amoxicillin and review in 6w to ensure healing
What is another name for otitis media with effusion?
Glue ear
What are the signs and symptoms of otitis media?
Asymptomatic apartfrom possible reduced hearing
Can interfere with normal speech development
What does otoscopy show in otitis media with effusion?
Eardrum is dull and retracted, often with a fluid level visible
How should otitis media with effusion be investigated?
Tympanometry
Audiometry
When should a referral be made to ENT in otitis media with effusion?
If persistent past 6-12 weeks
What is the most common complication of chronic otitis media?
Mastoiditis (chronic OM –? Honeycomb structure behind ear inflamed –> discharge + swelling behind ear)
What is another name for acute diffuse otitis externa?
Swimmer’s ear
What is the cause of chronic otitis externa?
Fungal cause
What is necrotising otitis externa?
Life-threatening extension into mastoid and temporal bones
What demographic of folks are most likely to get necrotising otitis externa?
The elderly
How should otitis externa be investigated?
If indicated: swabs and culture
How should otitis externa be managed?
Topical acetic acid (only effective for 1 week)
If indicated: topical Abx (neomycin/ clioquinol)
Wicking and removal of debris
Recall 2 indications for abx use in otitis externa?
Cellulitis
Cervical lymphadenopathy
What is tonsilitis?
Form of pharyngitis with inflammation of the tonsils and purulent exudate
What is the most common cause of bacterial tonsilitis?
Group A beta-haemolytic streptococcus
What score determines likelihood of bacterial over viral aetiology of tonsilitis? Recall it as well as the consequences of each score
Centor score: \+1: exudate \+1: tender anterior cervical LNs \+1: Temp >38 \+1: Cough absent \+1: age 3-14 "CETTA" 1 = no abx 2/3 = rapid strep test 4/5 = rapid strep test + Abx
When should a referral for laryngoscopy be made in tonsilitis?
If persistent (>3w) and change in voice
When should you admit for tonsilitis/ pharyngitis/ laryngitis?
Difficulty breathing
Peri-tonsillar abscess (quinsy) or cellulitis
Suspected rare cause (eg kawasaki/ diptheria)
How would diptheria appear OE of the throat?
‘web’/ pseudomembrane at back of throat
If bacterial tonsilitis is confirmed using rapid strep test, how should it be treated?
Phenoxymethylpenicillin 10 days QDS
What tx should be avoided in tonsilitis?
Amoxicillin in case it’s EBV because then you would get a maculpapular rash
For how long should school be avoided in tonsilitis?
Unti 24 hours after abx have been started (in case of scarlet fever)
What should you advise for self-tx for tonsilitis if no abx indicated?
Paracetamol
Lozenges
Saltwater
Difflam (anaesthetic spray)
What is the connection between tonsilitis and scarlet fever?
GAS (s pyogenes) infection can progress from tonsilitis to scarlet fever
What are the signs and symptoms of scarlet fever?
Rash and erythroderma
Neck and chest –> trunk and legs
Characteristic sandpaper texture
Pastia’s lines (rash prominent in skin creases)
Strawberry tongue (starts as a white tongue, then desquamates)
May progress to rheumatic fever with a week’s latency
How should scarlet fever be managed?
Phenoxymethylpenicillin 10 days QDS
Upon which chromosome is the cAMP-dependent Cl channel defect in cystic fibrosis?
Chromosome 7
What is the incidence of cystic fibrosis in terms of number of live births?
1 in 25, 000
Recall some of the most important signs and symptoms of cystic fibrosis in children?
Meconium ileus
Recurring chest infections
Clubbing of fingers
When is cystic fibrosis screened for in children?
At birth: heel prick test
If cystic fibrosis screening is positive, what further tests can be done?
Immunoreactive trypsinogen Sweat test (abnormally high NaCl) Genetic tests
Recall the timeline of routine reviews in cystic fibrosis?
Weekly in 1st month Every 4w in 1st year Every 6-8w when 1-5y Every 2-3m when 5-12yo Then every 3-6m
What is the main method of monitoring for cystic fibrosis?
Spirometry
How frequent should physiotherapy be done for respiratory symptoms in CF?
twice a day
Recall the protocol for mucolytic therapy in cystic fibrosis
1st line = rhDNase
2nd line = rhDNase + hypertonic saline
Orkambi (lumcaftor + ivacaftor) may be effective in treating CF caused by the FGO8 mutation
How should recurrent infection be managed in cystic fibrosis?
Prophylactic abx - usually flucloxacillin and azithromycin
Rescue packs given for prompt IV Abx
How should cystic fibrosis patients be nutritionally managed?
High calorie and high fat diet (150% of normal) and fat-soluble vitamins
Pancreatic enzyme replacemet with every meal –> CREON
How can liver problems in cystic fibrosis be managed?
Ursodeoxycholic acid to help bile flow
What is laryngomalacia?
Congenital abnormality of larynx predisposing to supraglottic collapse during inspiration
What are the signs and symptoms of laryngomalacia?
At 2-6w they go all noisy with their breathing (nb: not present at birth:
GORD +/- feeding difficulties, cough and choking
Normal cry
How should laryngomalacia be managed?
It will self-resolve within 18-24m so must conservatively manage
If airway compromise/ feeding disrupted sufficiently to prevent normal growth –> endoscopic supraglottoplasty
What is a breath holding attack?
When the child cries vigorously for <15s and then becomes silent
How should breath holding attack be managed?
They’ll resolve spontaneously, nay woz
What will be heard on auscultation in pneumonia?
Consolidation and coarse crackles
How should TB be investigated if there is exposure?
Manteaux test - if neg this excludes TB
If pos –> IGRA test
If neg –> prophylaxis (isoniazid)
If pos –> treatment
Recall the treatment of TB pneumonia
RIPE: 6m rifampicin, 6m izoniazid, 2m pyrazinamide, 2m ethanbutol
How can pneumonia and bronchiolitis be differentiated clinically?
Bronchiolitis = fine crackles on auscultation, Pneumonia = coarse crackles
How should pneumonia be managed?
- Note severity using obs and examination
- Decide on whether they need admitting or not
- Abx (can’t distinguish viral and bacterial so just go for it) - mild CAP = amoxicillin, 2nd line (severe CAP) = co-amoxiclav + macrolides
How should you decide whether a child with pneumonia needs to be admitted?
SpO2 < 92% on air RR>60 Child <3m OE: grunting, cyanosis, chest recession marked Low consciousness T>38
What is the gram status of pertussis
Gram neg
What are the signs and symptoms of pertussis?
1w coryzal symptoms followed by continuous coughing followed by inspiratory whoop and vomiting
In infants it is apnoea rather than a whoop
What investigations should be done in pertussis?
Culture and PCR per nasal swab
How should pertussis be managed?
Notify HPU
Decide whether to admit
<1m: clarithromycin
1+months: azithromycin
How do you decide whether to admit in whooping cough?
If <6m or acutely unwell
What is the other name for paediatric chronic lung disease?
Bronchopulmonary dysplasia
What would the CXR show in chronic lung disease?
Widespread opacification
How should chronic lung disease be managed?
If really bad - artificial ventillation/CPAP/ low-flow nasal cannula
Short course low-dose CS
Recall 2 differentials for a right atrium anomaly in children
Tricuspid atresia - requires ASD and VSD to remain patent to allow shunt
Ebstein’s anomaly - less severe as not reliant on shunting
Recall 3 differentials for a right ventricle anomaly in children
Pulmonary stenosis
Pulmonary atresia
Tetralogy of Fallot
(This is what it says in Ludley’s notes - bit confused about how pulmonary valve abnormalities are ventricular issues rather than atrial, so if anyone knows pls do let me know lol)
What is the tetralogy of fallot?
VSD, overarching aorta, right outflow tract obstruction, RV hypertrophy
Recall 2 differentials for a left atrium anomaly in children
Mitral stenosis
Mitral atresia
Recall 4 differentials for a left ventricle anomaly in children
Hypoplastic left heart
Coarctation of aorta
Interrupted arch
Aortic stenosis
When does ToGA present?
When ductus arteriosus closes at 2-4days old
How can ToGA be managed?
Give prostaglandin infusion to keep DA open
Need urgent surgical readjustment
How quickly after birth does AVSD present?
First few hours of life