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Core Concepts

Paediatrics focuses on the health and medical care of infants, children, and adolescents. Key areas include understanding normal growth and development (milestones, growth charts), the importance of routine immunisation schedules, and recognising the spectrum of common childhood illnesses. A crucial aspect is child safeguarding, identifying and acting upon concerns of non-accidental injury (NAI) or neglect. Neonatology covers the unique challenges of newborns, including prematurity, neonatal jaundice, and sepsis. Paediatric emergencies like sepsis, asthma exacerbations, anaphylaxis, and apparent life-threatening events (ALTEs)/brief resolved unexplained events (BRUEs) require prompt recognition and management.

Clinical Presentation

  • History Taking: Always include presenting complaint (PC), history of presenting complaint (HPC) covering ICE (Ideas, Concerns, Expectations), relevant past medical history (PMH), drug history (DH), allergies (AH), family history (FH), and social history (SH). Specifically for paediatrics, inquire about birth history, developmental milestones, feeding, immunisation status, and safeguarding concerns.
  • Symptoms:
    • Fever: Common, assess for associated symptoms (rash, vomiting, lethargy, work of breathing).
    • Respiratory: Cough, wheeze, stridor, shortness of breath, grunting (e.g., bronchiolitis, asthma, croup, pneumonia).
    • Gastrointestinal: Vomiting, diarrhoea, abdominal pain, poor feeding (e.g., gastroenteritis, appendicitis, intussusception).
    • Rashes: Characterise type, distribution, blanching status (e.g., viral exanthems, meningococcal rash, purpura, eczema).
    • Developmental Delay: Concerns regarding motor, speech, social, or cognitive milestones.
    • Irritability/Lethargy: Non-specific but concerning, especially in infants.
  • Examination: Begin with general observation (alertness, colour, hydration, respiratory effort). Systemic examination focusing on vital signs (HR, RR, T, BP, SpO2), growth parameters (weight, height, head circumference plotted on centile charts), and relevant system examination (e.g., chest auscultation, abdominal palpation, neurological assessment including fontanelles).

Diagnosis (Gold Standard)

Diagnosis in paediatrics often relies heavily on clinical assessment supported by targeted investigations. For many common conditions (e.g., bronchiolitis, viral exanthems, gastroenteritis), the diagnosis is purely clinical. For suspected infections like sepsis, the gold standard involves blood cultures, alongside FBC, CRP, lactate, and urine MC&S; CSF analysis for meningitis. UTI is diagnosed by urine dipstick and MC&S. Developmental delay often requires formal assessment by a paediatrician and may involve genetic testing or neuroimaging. Child abuse investigations necessitate a thorough history, physical examination, skeletal survey (X-rays), and ophthalmological assessment.

Management (First Line)

First-line management in paediatrics prioritises supportive care and addressing emergencies. The ABCDE approach is crucial for acutely unwell children. Hydration (oral rehydration solution for mild-moderate dehydration, IV fluids for severe), antipyretics (paracetamol/ibuprofen), and pain relief are fundamental. Specific treatments include: salbutamol and oral steroids for asthma exacerbations; adrenaline for anaphylaxis; broad-spectrum IV antibiotics and fluid resuscitation for suspected sepsis; nebulised adrenaline and dexamethasone for croup; supportive care with oxygen and nasogastric feeds for bronchiolitis; phototherapy for significant neonatal jaundice; and age-appropriate antibiotics for UTI. Always ensure immunisation status is up-to-date. For safeguarding concerns, immediate documentation and referral to social services are paramount.

Exam Red Flags

  • Non-blanching rash (petechiae/purpura): Urgent assessment for meningococcal sepsis.
  • Lethargy, poor feeding, irritability, floppy tone in an infant: High suspicion for sepsis.
  • Severe work of breathing (grunting, subcostal/intercostal recession, nasal flaring, tachypnoea): Respiratory distress, potentially severe infection or asthma exacerbation.
  • Bulging fontanelle: Raised intracranial pressure (e.g., meningitis, hydrocephalus).
  • Significant dehydration signs: Sunken eyes, reduced skin turgor, prolonged capillary refill time, decreased urine output – requires urgent fluid resuscitation.
  • Inconsistent history, unexplained injuries, multiple injuries of varying ages, or parental delay in seeking care: Suspect Non-Accidental Injury (NAI) or child abuse.
  • Fever for >5 days with rash, conjunctivitis, red lips/tongue, swollen hands/feet, cervical lymphadenopathy: Kawasaki disease (risk of coronary artery aneurysms).
  • ALTE/BRUE (Apparent Life-Threatening Event / Brief Resolved Unexplained Event): Always requires thorough investigation to rule out serious underlying causes.
  • Stridor in a febrile child: Consider epiglottitis (rare due to HiB vaccine) or severe croup.

Sample Practice Questions

Question 1

A 2-day-old full-term neonate is brought to the emergency department by his parents due to increasing yellowness of his skin. He was born at 39 weeks gestation via normal vaginal delivery, birth weight 3.2 kg. His mother is O positive, and he is A positive. He appears lethargic, has not fed well in the last 12 hours, and his urine output seems reduced. On examination, he is visibly jaundiced down to his knees, and his sclera are icteric. His capillary refill time is 3 seconds. What is the most appropriate initial investigation to perform in this neonate?

A) Serum bilirubin (total and unconjugated)
B) Full blood count and reticulocyte count
C) Liver function tests
D) Direct Coombs test
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Question 2

A 6-year-old boy, known to have moderate persistent asthma, is brought to the emergency department by his mother. He has been wheezing for the past 4 hours and is finding it difficult to breathe. He is unable to complete sentences, is visibly distressed, has a respiratory rate of 40 breaths/min, and significant intercostal and subcostal retractions. His oxygen saturation is 91% on room air.

A) Administer oral prednisolone.
B) Provide nebulised salbutamol.
C) Order a chest X-ray.
D) Start intravenous antibiotics.
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Question 3

An 18-month-old child is brought to the emergency department with a suspected fractured femur after a fall from a high chair. The parents report the child slipped and fell while trying to climb out. However, on examination, the fracture is a spiral fracture of the mid-shaft of the femur, and the child also has several bruises of varying ages on his back and buttocks. The child also appears withdrawn and does not make eye contact. The parents seem anxious and give slightly conflicting accounts of the 'fall'.

A) Admit the child to hospital for a comprehensive safeguarding assessment.
B) Refer the child to orthopaedics for fracture management.
C) Arrange for a bone density scan to rule out osteogenesis imperfecta.
D) Discharge the child home with detailed safety advice to prevent further falls.
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