A 9-year-old boy with known asthma presents to the emergency department with an acute exacerbation. Following administration of oxygen, nebulized salbutamol, ipratropium bromide, and oral prednisolone, he remains in respiratory distress with oxygen saturation 92% on high-flow oxygen, peak flow 30% of predicted, and poor respiratory effort. What is the appropriate dose and route of magnesium sulphate administration in this clinical scenario?

40 mg/kg (maximum 2 g) intravenous infusion over 20 minutes

25 mg/kg (maximum 1 g) intravenous bolus over 5 minutes

40 mg/kg nebulized with salbutamol

50 mg/kg (maximum 2.5 g) intravenous infusion over 30 minutes

150 mg nebulized with ipratropium bromide

A 4-year-old boy presents with sudden onset high fever of 40.2°C, drooling, and severe difficulty swallowing. He is sitting upright, leaning forward with his neck extended, and appears anxious. There is inspiratory stridor and he is reluctant to speak. Oxygen saturation is 96% on air. What is the single most appropriate immediate action?

Contact senior anaesthetist and ENT surgeon urgently without disturbing the child

Examine the throat with tongue depressor to visualize the epiglottis

Obtain blood cultures and commence intravenous antibiotics immediately

Administer nebulized adrenaline and oral dexamethasone

Perform lateral neck X-ray to confirm the diagnosis

A 2-year-old boy with viral-induced wheeze is assessed in the emergency department. He has received salbutamol via spacer but continues to have expiratory wheeze, recession, and a respiratory rate of 50/min. Oxygen saturation is 93% on air. The parents ask whether their child will develop asthma. Which factor most strongly predicts progression from preschool wheeze to persistent childhood asthma?

Eczema or allergic rhinitis in the child

Early onset of wheeze in the first year of life

Parental smoking in the household

History of bronchiolitis requiring hospitalization

A 15-month-old child is brought to the emergency department with fever of 39.6°C for 2 hours. The mother reports the child had a brief generalized tonic-clonic seizure lasting approximately 3 minutes at home which resolved spontaneously. The child is now alert and playful with no focal neurological signs. There are no signs of meningism. The seizure occurred on the way up in fever. What is the most important next step in management?

Undertake thorough clinical examination to identify source of fever

Perform urgent lumbar puncture to exclude meningitis

Administer intravenous antibiotics immediately

Commence regular paracetamol and observe for further seizures

Arrange urgent CT head to exclude intracranial pathology

A 5-year-old girl with poorly controlled asthma on beclometasone 400 micrograms twice daily plus montelukast presents with her fourth exacerbation in 6 months. Her mother reports good adherence but mentions they have a cat at home and the child often plays with it. Skin prick testing confirms cat allergy. Despite advice about allergen avoidance, the family is unable to rehome the pet. What is the most appropriate next step in her asthma management?

Add long-acting beta-agonist to current therapy

Continue current therapy and arrange follow-up in 3 months

Switch to high-dose inhaled corticosteroid monotherapy

Commence allergen-specific immunotherapy for cat allergy

Add oral prednisolone maintenance therapy

Febrile child for UKMLA AKT: High-Yield Child Health Lessons

Quick Overview

Fever in children is a common presentation requiring systematic assessment to identify serious bacterial infection (SBI). NICE NG143 provides the traffic light system (green/amber/red) to stratify risk based on clinical features. Age-specific thresholds and investigation criteria guide management, with particular vigilance for children <3 months and recognition of meningococcal septicaemia.

Core Facts & Concepts

Fever Definitions:

Fever: Temperature ≥38°C
High fever: ≥39°C in children aged ≥3 months

Age-Specific Risk Stratification:

<3 months: High-risk group - low threshold for investigation/admission
3-6 months: Intermediate risk - temperature ≥39°C warrants investigation
>6 months: Risk based on clinical features, not age alone

NICE Traffic Light System (NG143):

GREEN (Low Risk)	AMBER (Intermediate)	RED (High Risk)
Normal colour	Nasal flaring	Pale/mottled/ashen/blue
Responds normally	Reduced activity	No response to social cues
Stays awake/wakes easily	Dry mucous membranes	Appears ill to healthcare professional
Strong normal cry	Tachycardia/tachypnoea	Weak/high-pitched/continuous cry
Normal skin/eyes	Fever ≥5 days	Reduced skin turgor
Moist mucous membranes	Age 3-6 months, temp ≥39°C	Tachycardia >160 (age <12m) or >150 (age 12-24m)

Figure 1: Clinical photograph showing purpuric non-blanching rash on child's leg

Investigation Thresholds:

Urine testing: All children with fever ≥38°C without obvious source
Blood tests (FBC, CRP, blood culture): Amber/red features OR age <3 months with temp ≥38°C
Lumbar puncture: Age <1 month with fever OR red features suggesting meningitis

Problem-Solving Approach

Systematic Assessment:

Immediate recognition: Non-blanching rash → suspect meningococcal disease → urgent IM/IV benzylpenicillin before transfer
Age check: <3 months with temp ≥38°C = automatic amber minimum
Traffic light features: Assign colour category using all domains (colour, activity, respiratory, hydration, other)
Source identification: Examine systematically - throat, ears, chest, abdomen, skin, meninges

Red Flag Features (🚩):

Age <3 months with fever
Non-blanching rash
Reduced consciousness/neurological signs
Bile-stained vomiting
Respiratory distress (grunting, nasal flaring, chest recession)
Cyanosis or oxygen saturation <95%

Management by Category:

Category	Action
Green	Home care advice, safety-netting, no antibiotics
Amber	Consider investigations (urine ± bloods), oral antibiotics if focus identified, safety-netting or admission
Red	Urgent admission, investigations (blood, urine, LP if indicated), IV antibiotics within 1 hour

Analysis Framework

Serious Bacterial Infection (SBI) Risk Factors:

Age <3 months (3-10% SBI risk)
Temperature ≥38°C in neonates
Fever ≥5 days without source
CRP >40 mg/L or WCC <5 or >15 × 10⁹/L
Procalcitonin >0.5 ng/mL (if available)

Differential Diagnosis - Fever Without Source:

Diagnosis	Key Features	Investigation
UTI	<3 months, vomiting, lethargy	Urine MC&S (clean catch/catheter)
Pneumonia	Tachypnoea, chest recession, crackles	CXR if clinically indicated
Meningitis	Bulging fontanelle, neck stiffness, photophobia	LP (if no contraindications)
Septicaemia	Shock, prolonged CRT, tachycardia	Blood culture, lactate
Viral illness	Coryza, conjunctivitis, contact history	Clinical diagnosis

⚠️ Warning: Absence of meningism does NOT exclude meningitis in infants <18 months

Visual Aid

Key Points Summary

✓ Fever definition: ≥38°C; high fever ≥39°C (age ≥3 months)

✓ Age <3 months with temp ≥38°C: Automatic amber category minimum - requires blood tests, urine culture, senior review, strong consideration for admission

✓ Traffic light system: Use all domains (colour, activity, respiratory, circulation, hydration) - RED features mandate urgent admission and IV antibiotics within 1 hour

✓ Non-blanching rash: Suspect meningococcal disease - give benzylpenicillin immediately (IM/IV: <1 year 300mg, 1-9 years 600mg, ≥10 years 1200mg) before transfer

✓ Investigation criteria: Urine (all fevers without source), bloods (amber/red features OR age <3 months), LP (age <1 month OR red meningitis features)

✓ SBI risk factors: Age <3 months, fever ≥5 days, CRP >40 mg/L, WCC <5 or >15 × 10⁹/L - lower threshold for investigations and admission

✓ Safety-netting: Advise parents on red flags (non-blanching rash, reduced consciousness, respiratory distress, refusing fluids) - provide written information and clear return instructions

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Febrile child