Respiratory, GI, Growth, Metabolic Flashcards
Key investigations for asthma
PEFR
Spirometry + Reversibility testing
FeNO test
Respiratory symptoms/signs increasing the likelihood of asthma over other resp diseases
Cough and Wheeze
Hx atopy
Wheeze on auscultation
Responsive to therapy
Features of acute severe asthma exacerbation
SpO2<92% PEFR 33-50% Tachycardia and Tachypnoea Can't complete sentences in one breath Too SoB TO SPEAK
Features of life-threatening asthma
SPO2<92% PEFR<33% Silent, poor effort, exhaustion Hypotension Confusion Normal or raised PCO2 Cyanosis
For mild asthma exacerbation what can you give?
6-8 puffs of salbutamol inhaler
1puff= 100mcg
If tolerated then go home on this for 48 hours
What is the maximum number of salbutamol puffs recommended for home in ?Acute asthma
2-4 puffs
6+ then they need to come hospital
Acute asthma management (>5 years)
Nebulised salbutamol 5mg BTB
Nebulised ipratropium 250mcg every 5 mins
Prednisolone 30-50mg 3 days (or hydracortisone 100mg IV)
MGSO4 added to Salbutamol
Aminophylline or IV salbutamol
What time between inhalers after an acute exacerbation of asthma would indicate it is safe to discharge
> 4 hours apart
Aims of asthma control
No waking at night
No need for reliever therapy
No limitations on activity
Step down therapy once objectives are achieved
How many uses of SABA a week would suggest asthma therapy needs to be intensified
> /=3
BTS Asthma guidelines
1) SABA
2) Low dose ICS
LTRA if <5
3) Increase ICS or add LTRA or LABA
4)Oral steroids, theophylline
NICE Asthma guidelines
SABA-> + ICS low dose -> +LTRA -> Stop LTRA IF NOT HELPING -> +LABA/MART
If <5 years then SABA + 8 WEEK TRIAL of ICS then consider LTRA
Example of a LTRA
Monteleukast
Example of a low dose ICS
Clenil Modulite
What is Maintenance and Reliever Therapy
LABA and ICS In one inhaler
Indications for starting an asthmatic child on both SABA and ICS (According to NICE)
If symptoms > 3X a week or waking at night
Peak age for Bronchiolitis
3-6 months
Cause of Bronchiolitis
RSV (Maybe other viruses)
Inflammation and narrowing of airways in lungs because of infection
Presentation of bronchiolitis
Harsh cough, Fever, High pitched wheeze bilaterally, Fine inspiratory crackles, SOB, Poor feeding
YOUNG <2 Years
When do the symptoms of Bronchiolitis peak
4-5 days from onset
Indications for admission of bronchiolitis
THINK FEEDING OR OXYGEN SUPPORT
Dehydration- No wet nappy for 12 hours Marked recessions/grunting Apnoeic Milk/Fluids<50% normal Exhausted Spo2<92%
Management of moderate Bronchiolitis
NG feed
Nasal cannula-> CPAP-> Intubate
+/- Fluids
Management of severe Bronchiolitis
HDU/PICU
CPAP/Ventilation/IV fluids
Severe bronchiolitis
Worsening respiratory distress Respiratory acidosis Apnoea Dehydration Risk Factors
Palivizumab
MAb to RSV
Passive immunity provided to at risk babies: Premature/CF/Congential HD/Lung disease
Reduces INFECTIONS
IM monthly for 6/12
Safety netting for Bronchiolitis when sending a mild case home
Struggling to breath or irregular breathing Blue lips Unresponsive No wet nappy >12 hours Pauses in breathing
Peak age for croup
6 months to 6 years
Causes of croup
Parainflueza virus mostly
Can be other viruses like RSV/Adeno/Influenza
What is Croup
Acute viral Layngotracheobronchitis (URTI)
Presentation of croup
~Acute abrupt onset Stridor Barking cough Respiratory distress Worse at night IC recessions
Commonest cause of stridor in children
Croup
What is contraindicated in Croup
Throat exam as can potentiate airway obstruction
Epiglottitis vs Croup
In Epiglottitis there is drooling, mouth open with muffled voice and they cannot drink
ONSET IS VERY RAPID mins- hrs
Croup has barking cough and no drooling
Indications for admission in croup
< 6 months old
Poor oral intake
Severe obstruction
Immunocompromised
Mild vs Moderate croup presentation
Mild has occassional barking but no stridor and no Resp Distress
Barking and stridor is intermittent in moderate croup, chest wall retraction
Signs of severe croup
Frequent barking
Severe RDS
Stridor is prominent and there at rest
Tiredness and confusion
Treatment of croup
Keep upright Oral Dexamethasone 0.15mg/kg (or Neb Budesonide or IM Dex) Neb Adrenaline if Mod-Sev HF O2 if severe ENT help?
How do you assess the severity of Croup
Stridor Recessions Air entry 02 sats Conscious level
What is Pneumonia
Inflammation of the lungs primarily affecting the alveoli
Induced by infection
Bacterial causes of pneumonia
1) Neonates
2) Infants
3) Children
Viral causw
1) GBS, E.coli, Listeria, Chlamydia
2) S.Pneum, H.Influ, Pertussis
3) S.Pneum, H.Influ, GAS, Mycoplasma
RSV, PIV, AV, Rhino (1/3rd are viral!)
Presentation of Pneumonia?
What abdominal sign is important not to forget?
Recent URTI Cough +/- Sputum Respiratory distress Feeding is reduced Pleuritic chest pain Wheeze, crackles, reduced AE, Bronchial Breathing
UPPER ABDO TENDERNESS
Investigations for Pneumonia?
When is a CXR indicated?
FBC, U&Es, CRP, Sputum ?Blood culture
?Septic screen
CXR if not responding to treatment or complications are suspected
Admission of pneumonia
If Moderate to severe
- Respiratory distress, Poor fluid intake, Dehydration, Diffuse chest signs, RR>70 infants, RR>50 Children
Treatment of Mild Pneumonia
CXR follow up?
Send home, fluids advice and temp control
Oral Amoxicillin +/- Macrolides
NO CXR follow up
Treatment of mod-sev pneumonia
0xygen support to maintain sats >92%
IV Co-Amoxiclav +/- Cefotaxime/Cefuroxime
Fluids
Follow up CXR in Pneumonia
Not routinely indicated in paediatrics
Unless: Atelectasis, Volume loss, Lymphadenopathy
What signs indicate a bacterial tonsillitis
Tender Cervical Lymphadenopathy
Purulent exudate on tonsils (ESPECIALLY GAS)
Common causes of pharyngitis
Viral- Adeno, Entero, Rhino
GAS can be a cause in older children
Centor Criteria
> 3= Bacterial likely
Tonsillar exudate, Tender anterior cervical lymphadenopathy, Hx feverm No cough
URTI advice
Should only last a week
Ibuprofen and paracetamol
Lots of fluids
Abx indications for URTI
> 3 centor
Immunodeficiency
Rheumatic fever
Marked systemic upset
1st line is Phenoxymethylpenicillin 7-10 days or erythromycin if allergic
Amoxicillin and EBV
Causes a rash
Complications of tonsillitis
Otitis media
Quinsy
Post-strep glomerulonephritis
Tonsillectomy indications
> 5 episodes a year
Disabling
Quinsy
Obstructive- Apnoea, Dysphagia
Viral induced wheeze
URTI associated
< 5 years
No Hx of atopy
May have had it before but admission unlikely
Wheeze vs Stridor
Wheeze- High-pitched largely expiratory breath sound; intrathoracic airway narrowing
Stridor- Upper airway obstruction, arises acutely and paitent is in respiratroy distress, Inspiratory noise
Treatment of wheeze
Ensure it isnt stridor
SABA or Anticholinergic via spacer +/- LTRA/ICS
Different modalities of airway compression that can cause wheeze
Extrinsic- Lung parenchyma, Vascular, Lymphatic
Intrinsic- CF, Bronchiolitis, Polyps
Intraluminal- Aspiration, Reflux
Genetics and pathophysiology of CF
Autosomal recessive
CFTR defect, codes Cl- channel
Neonatal features of CF
Meconium ileus= Obstruction (Distended coils of bowel on CXR)
Prolonged jaundice
GI manifestations of CF
Failure to thrive Bulky, pale, offensive stools Wx loss Rectal prolapse DM- PANCREATIC INSUFFICIENCY
Respiratory manifestations of CF
Bronchiectasis
Recurrent infections
Chest deformity
Crackles on auscultation
Key complications of CF
Subfertility +/- Delayed puberty Bone disease Malabsorption DM Liver disease as sluggish bile flow induces Portal HTN Excess salt loss
Gold standard test for CF
Sweat test- Cl- >60mmols
Need 2 abnormal tests
False -ve sweat tests for CF
Skin oedema, adrenal/thyroid problems, Nephrogenic DI
Newborn screening for CF
Heel prick
Increased immunoreactive trypsinogen on newborn bloodspot card
CF on a CXR
Dilated TRAMLINE airways
Lymphadenopathy
Interstitial pattern because of scarring
Mottled ground glass appearance
MDT management of CF
6-8 week outpatient appointment Specialist nurses Pysiotherapy- 2X daily with Neb DNAase High calorie diet + Vit ADEK + Salt (Dietician) Isolate from other CF patients ?Sputum sample if infections + Dilators + Abx PORTACATH Fertility/Endocrine support
Best measure of the progression of CF
Prognosis
Lung function tests
Half live to at least 48 years
What enzyme supplementation are CF patients given
Creon with all meals
Causes of a chronic cough >8 weeks
Tonsillitis Post-nasal Drip GORD Pertussis TB Bronchiectasis PCD Tourette's Psychogenic
Cough red flags
Haemoptysis Dyspnoea Pleuritic chest pain Stridor Respiratory distress Cyanosis Hypoxia
Classification of the causes of SoB
Pulmonary -Hypoxia -Obstruction -Abnormal lung mechanisms Cardiac
Larynx obstruction
Hoarseness, Cough, Stridor, SOB, Cyanosis
Apnoea= complete
Oesophageal obstruction
Drooling, Dysphagia, Vomiting, Tracheal compression
Otitis Media causes
S.Pneum/H.Influ/RSV/Other viruses
+/- Eustachian tube dysfunction
Causes of Eustachian Tube Dysfunction
Results from many URTIs
Obstruction from large adenoids
Cleft palate and Down’s increase risk
Tympanic membrane in Otitis Media
Red, Inflamed, Bulging, Purulent discharge Loss of light refelx
Otitis media with effusion (GLUE EAR)
Peak 2 years
Thick middle ear exudate
Tympanic Membrane changes- Thick, Retracted, no light reflex
Hearing loss +/- Speech and language delay
Treatment of Glue Ear
Grommets (VENTILATION TUBES)
Lasts months to years
Indicated if language delay
Treatment of simple otitis media
Try Paracetamol for 72 hours- Spontaneous resolution
> 4 days/Systemic upset/immunocompromised/Bil + <2 years/Perforated drum= AMOXICILLIN 5/7
Mastoiditis
Can be secondary to OM
Otalgia, Swelling, Erythema, Tenderness, External ear protrudes forwards
Number one cause of stridor in neonates
Laryngomalacia
Presentation of Layngomalacia
Presents at birth and resolves by 12-18 months
Symptoms are increased when lying flat/eating
Otherwise well
Causes of Stridor
Layngomalacia Epiglottitis (esp 2-4 years) Sinusitis/Rhinitis Choanal atresia Layngeal web/cleft Croup 6 months to 6 years Abscess/Cyst Tracheomalacia Fistula
Where is TB endemic
Asia, Latin America, Eastern Europe, Africa
Cause of TB
Mycobacterium tuberculosis
Acid fast bacilii
Induces a T4 Hypersensitivity reaction (Delayed and T-cell response)
Adults not children usually infectious
Presentation of TB
Cough, Fever, Wx loss, Night sweats, Haemoptyisis
< 4 years= Meningitis
Hilar lymphadenopathy +/- Bronchial obstruction
BCG vaccine
Parent/Guardian from high risk area
Then offered to Babies up to 1 year of age
Whooping cough classical presentation
Paradoxical expiratory cough spasms followed by a sharp inspiratory breath (Whooping)
Apnoeas/Post-tussive vomiting/Coryzal symptoms
Insp. whoop may be absent in younger patients
Diagnosis of Whooping Cough/Pertussis
Clinical
Ask immunisation status (6 in 1 vaccine)
Per-nasal swab culture if within 2/52 of cough
?Serum PCR
FBC in whooping cough
Significant lymphocytosis
Management of Whooping cough
Within 3/52 of onset= Give Abx
1) > 1month old= Azithromycin
< 1month = Claithromycin
Pregnant= Erythromycin
< 6months= Admit
Whooping cough and school exclusion
Avoid 48 hours post Abx
3 weeks if no treatment
Constipation- Acute vs Chronic
Acute- < 3 complete stools a week
Chronic if 6-8 weeks particularly abnormal if > 5 years old, incidence peaks at 2-4 years
Feacal impaction
No bowel movement in days, large faecal mass compacted in rectum
Overflow soiling
Severe constipation
Soiling
Faecal staining of underwear as there is leakage around impaction
Mistaken for diarrhoea
Abnormal of > 4 years!
Encopresis
Involuntary passage of whole stools
Overflow or Psych
CHILD MUST BE MATURE ENOUGH TO BE CONTITNENT
Presentation of constipation
Excessive straining- Back arching, straight legs, tiptoed Pain Soiling Overflow incontinence Neuro exam may be abnormal...
Constipation reg flags
Present from birth Thin Ribbon stools (?Anal stenosis) Delayed meconium (>48 hours) Abd distension and vomiting Leg weakness, locomotor delay Abnromal leg reflexes Sacral dimple, Gluteal agenesis Perianal fistula/Abscess Bruising around anus (FTT is amber flag)
Causes of constipation
Number 1= IDIOPATHIC
Dehydration, Low fibre diet, Opiates, Learning difficulties, Post-illness, Abuse, Hypothyroidism, Hypercalcaemia, Routine change, Hirschsprungs’s, Coeliac’s
Toilet training is a precipitant
ROME criteria for constipation
2 or fewer defecations per week
At least 1 episode of weekly faecal incontinence
Hx of excessive stool retention
Need at least 2 for Dx
Hirschsprung’s disease
Absence of ganglion cells in the bowel wall plexus
Increased in Boys and Down’s syndrome
Hirschsprung’s disease presentation and Dx
Newborn + Delayed meconium + Distension
Dx= Biopsy
Pharmacological Management of idiopathic constipation
Disimpaction with Movicol for at least 2 weeks (may increase soiling and pain initially)
Then switch to Maintenance therapy with movicol (lower dose)
If disimpaction doesn’t work then + Senna Stimulant or + Laculose softner
Advice for constipation
Always use advice + Laxative Increase water, Limit squash/fizzy drinks/Caffeine Increase fibre, fruit, beans, nuts Non-punitive regular toileting Regular set toilet times- sit 20 mins 1-3x a day Footrest Bowel diary ?Reward system Massage abdomen if not weaned
Examples of osmotic, Stimulant and softener laxatives
Osmotic- Movicol
Stimulant- Senna, Bisacodyl
Softener- Lactulose
Length of Laxative maintenance therapy for constipation
3-6 months and keep them on it for weeks after resumption of normal bowel movements
NICE clinical features of Gastroenteritis
Diarrhoea 5-7/7
Worrying if > 2 weeks
Vomiting 1-2/7 stops within 3 days
+/- Fever, Abdo pain, Nausea
Causes of Gastroenteritis
ROTAVIRUS most common, also Adeno/Norovirus
Salmonella, Shigella, Campylobacter, E.Coli 0157
Bacterial vs Viral Gastroenteritis
Viral is watery smelly stools
Bacterial is usually bloody mucous stained stools
Not infallible
When is a stool sample indicated in gastroenteritis
Blood and mucous in stools ?Sepsis Immunocompromised Recently abroad Diarrhoea not improving by D7
Key DDx for Gastroenteritis
INTUSSUSCEPTION
Associated with viral gastroenteritis
Episodic screaming, vomiting, paroxysmal drawing up of legs, shock, sausage shaped mass in RUQ, Jelly stool