Paediatrics & Child Health RACGP Exam: Clinical Guide

Paediatric presentations constitute a highly tested core curriculum domain in both the RACGP Applied Knowledge Test (AKT) and Key Feature Problem (KFP) examinations. General practice registrars and international medical graduates are expected to demonstrate precise clinical reasoning regarding developmental assessment, acute respiratory conditions, screening criteria, and child safety.

Many candidates lose straightforward marks in this domain due to a lack of specificity when documenting developmental milestones, misapplying acute fever assessment criteria, or ordering unnecessary investigations for self-limiting conditions. Pediatric clinical safety is a critical gatekeeper in Fellowship assessments. Unsafe management decisions, particularly regarding septic infants or acute asthma, trigger immediate marking penalties.

This clinical revision guide details high-yield paediatric presentations, maps them directly to current Australian guidelines (Therapeutic Guidelines, RACGP Red Book), and outlines the examiner-reported pitfalls you must avoid to secure a passing score.

Acute Fever in Children: eTG Risk Assessment

The management of the febrile child is a high-frequency clinical scenario. Candidates must be familiar with the structured approach detailed in Therapeutic Guidelines (eTG), which categorises children under 5 years into low, intermediate, or high risk of serious bacterial infection.

Immediate Referral Gate: The Under-3-Month Rule

You must memorise this absolute safety threshold for both exams:

• Rule: Any infant aged less than 3 months presenting with a temperature of 38.0°C or greater must be referred immediately to the emergency department for a full septic workup (blood cultures, lumbar puncture, urine analysis, and chest X-ray).
• Exam Pitfall: Under exam pressure, candidates frequently attempt to treat these infants with oral antibiotics or review them in the clinic the next day. This is a severe clinical safety error that will result in a zero mark.

Risk Stratification for Children Aged 3 Months to 5 Years

For older infants and children, the eTG utilises a traffic light assessment system:

1. High Risk (Red Features)

The presence of any single red feature warrants immediate hospital referral and emergency stabilization:

• Pale, mottled, ashen, or blue skin/lips.
• No response to social cues or appears extremely difficult to wake.
• Weak, high-pitched, or continuous crying.
• Grunting, respiratory rate greater than 60 breaths/minute, or severe chest indrawing.
• Reduced skin turgor or fontanelle depression (severe dehydration).
• Non-blanching petechial or purpuric rash (suspected meningococcal disease).
• Bulging fontanelle or neck stiffness (meningeal signs).

2. Intermediate Risk (Amber Features)

Children with amber features require close observation, active investigation (such as urine testing), and a structured safety net:

• Pallor reported by parent or clinician.
• Not smiling, decreased activity, or wakes only with prolonged stimulation.
• Nasal flaring, intercostal recession, or oxygen saturation less than 95% on room air.
• Dry mucous membranes, poor feeding, or reduced wet nappies.
• Fever lasting 5 days or longer.
• Swelling of a limb or joint.

Developmental Milestones: Key Milestone Ages

Developmental assessment is a classic KFP question template. The examiners expect you to know the exact ages at which specific gross motor, fine motor, speech, and social milestones are achieved. You must also recognise "red flag" delays that warrant immediate paediatric or allied health referral.

Key Milestone Summary Table

Developmental Red Flags (Mandatory Referral Points)

The presence of any of the following red flags at these specific ages requires immediate diagnostic referral:

• No social smile by 8 weeks.
• Persistent primitive reflexes beyond 6 months.
• Inability to sit without support by 9 months.
• No pincer grasp by 12 months.
• Inability to walk independently by 18 months.
• Fewer than 6 single words spoken by 18 months.
• Inability to construct 2-word sentences by 2.5 years.
• Any loss of previously acquired milestones at any age.

Asthma and Bronchiolitis: eTG Protocols

Respiratory presentations are the most common acute paediatric cases in general practice. Candidates must be able to differentiate clearly between bronchiolitis and acute asthma, as their management protocols are entirely different.

Bronchiolitis: A Clinical Diagnosis

Bronchiolitis is a viral lower respiratory tract infection occurring primarily in infants under 12 months, most commonly caused by Respiratory Syncytial Virus (RSV).

• Diagnosis: Clinical diagnosis based on history (coryzal prodrome followed by cough, tachypnoea, and wheeze) and examination (widespread crackles and expiratory wheeze).
• Investigations: Routine chest X-rays, blood tests, and nasopharyngeal aspirates are not recommended for uncomplicated cases in primary care.
• Management: Supportive care is the gold standard. Ensure hydration (fractionated smaller, frequent feeds) and nasal saline drops.
• The Negative list (High-Yield Exam Trap): Bronchiolitis does not respond to salbutamol, corticosteroids, adrenaline, or antibiotics. Prescribing these agents in a bronchiolitis scenario will result in marks being deducted.

Acute Asthma Management in Children

Asthma is diagnosed and managed differently depending on whether the child is under or over 5 years. For acute presentations:

• Under 5 Years: Acute wheeze is managed with salbutamol via a spacer. The dose is typically 2 to 6 puffs administered one puff at a time with 4 deep breaths per puff. Review within 20 to 30 minutes.
• 5 Years and Older: Managed with salbutamol via spacer, typically 4 to 12 puffs depending on severity.
• Systemic Corticosteroids: Oral prednisolone (1 mg/kg daily, up to a maximum of 50 mg) for 3 days is indicated for moderate-to-severe acute exacerbations.
• Oxygen Therapy: Indicated only if oxygen saturation falls below 92% on room air.

Paediatric Red Flags: Safety First

Paediatric safety questions test your ability to recognize clinical signs of decompensation and implement immediate life-saving interventions.

1. Meningococcal Sepsis

Suspect meningococcal sepsis in any febrile child presenting with a non-blanching petechial or purpuric rash.

• Immediate Action: Administer intravenous or intramuscular benzylpenicillin immediately before hospital transfer (600mg for children aged 1 to 9 years, 1.2g for children 10 years or older).
• Exam Action: Never delay administration of benzylpenicillin to wait for an ambulance or perform diagnostic blood tests.

2. Acute Epiglottitis

A rare but life-threatening bacterial infection of the epiglottis, typically caused by Haemophilus influenzae type b (Hib) in unvaccinated children.

• Clinical Signs: High fever, muffled voice, severe sore throat, drooling, and sitting forward in a tripod position.
• Absolute Rule: Do not inspect the child's throat or insert a tongue depressor, as this can precipitate sudden, total airway occlusion. Keep the child calm in the parent's lap and arrange immediate emergency transfer with an anaesthetic team present.

Top 5 Examiner-Reported Paediatric Errors

Official RACGP public exam reports detail specific recurring errors that candidates make in child health questions. Reviewing these mistakes will help you avoid common pitfalls:

1. 1
   Treating Bronchiolitis with Salbutamol or Corticosteroids

   Candidates consistently prescribe salbutamol inhalers or oral prednisolone for 8-month-old infants presenting with classic bronchiolitis. Because the pathophysiology of bronchiolitis involves viral airway edema and cellular debris rather than smooth muscle bronchoconstriction, bronchodilators and steroids are ineffective. Supportive hydration is the correct clinical answer.

2. 2
   Ordering Routine Investigations for Febrile Seizures

   For a child presenting after a typical, simple febrile seizure (convulsion lasting less than 15 minutes, generalized, with a single episode in a 24-hour period), candidates often order urgent electroencephalograms (EEGs) or head CT scans. Simple febrile seizures do not require neuroimaging or EEG investigations. The correct management is parental reassurance, fever management for comfort, and identifying the source of the infection.

3. 3
   Failing to Refer Infants Under 3 Months with Fever

   Candidates under exam pressure often opt to manage a 6-week-old infant with a temperature of 38.2°C with oral paracetamol and a scheduled review the following morning. Neonates and young infants have immature immune systems and can rapidly deteriorate from occult bacteremia. Immediate emergency department referral for a full septic workup is mandatory.

4. 4
   Prescribing Aspirin to Children for Fever Control

   Candidates occasionally select aspirin for fever control in children. This is a severe clinical error due to the established association with Reye syndrome, a rare but fatal condition characterized by acute encephalopathy and fatty liver infiltration. Paracetamol or ibuprofen are the only approved antipyretic agents in children.

5. 5
   Confusing Gross Motor and Fine Motor Milestone Ages

   In developmental assessment scenarios, candidates frequently mix up milestone timelines, such as stating a child should sit without support at 12 months or speak in 3-word sentences by 18 months. Precise memorisation of milestone tables is required to secure full marks in developmental questions.

Frequently Asked Questions