Paediatric nursing is not adult nursing scaled down. Children compensate well and then decompensate suddenly, doses are calculated per kilogram every time, and the family is part of the patient. These pediatric nursing study notes cover developmental milestones, the assessment findings that signal deterioration, and the safety priorities that appear most often on the NCLEX-RN.
How to use this study guide
For each age group, learn what is normal before you learn what is abnormal. Most paediatric exam questions are really developmental questions in disguise — whether a behaviour, a vital sign, or a safety risk is appropriate for that age.
Growth and development at a glance
Milestones are tested as safety and teaching questions: what the child can do determines what can hurt them and what you teach the parent.
- Infant — trust versus mistrust; rolls around 4–6 months, sits around 6–8 months; aspiration and falls are the leading risks
- Toddler — autonomy; negativism and ritualism are normal; poisoning and drowning risks peak
- Preschool — initiative; magical thinking means illness may be understood as punishment
- School age — industry; wants to understand procedures and needs honest explanation
- Adolescent — identity; privacy and peer acceptance drive adherence
Medication safety in children
Every paediatric dose is weight-based, and a decimal error is the classic source of catastrophic harm. Always verify the calculated dose against a reference range before administering.
- Calculate in mg/kg and compare against the safe range for that drug
- Always use a leading zero (0.5 mg) and never a trailing zero (5.0 mg)
- Use oral syringes for liquids, never household spoons
- Weigh in kilograms only, and re-weigh rather than relying on a reported weight
Respiratory distress: the earliest signs
Respiratory failure is the most common path to paediatric arrest. The signs are visible before the numbers change, and a quiet chest in a previously wheezing child is an emergency, not an improvement.
- Early — tachypnoea, nasal flaring, retractions, restlessness
- Worsening — grunting, head bobbing, inability to speak or feed
- Late — bradycardia, cyanosis, decreased level of consciousness
- Never examine the throat or place anything in the mouth with suspected epiglottitis
Dehydration and fluid balance
Children lose fluid proportionally faster than adults. Weight change is the most reliable measure, and urine output is the most practical bedside indicator.
- Weigh daily on the same scale — 1 kg lost is approximately 1 litre of fluid
- Assess mucous membranes, tears, fontanelle in infants, and capillary refill
- Urine output below roughly 1 mL/kg/hour in a child warrants escalation
- Oral rehydration is preferred in mild to moderate dehydration
NCLEX tips: pediatric nursing
- Choose the answer appropriate to the child’s developmental stage, not their chronological age alone.
- In any paediatric emergency scenario, airway and breathing come before circulation.
- A decreasing heart rate in a distressed child is an ominous late sign, not stabilisation.
- Never examine the throat in suspected epiglottitis.
- Include the caregiver in teaching answers — paediatric education is family education.
Immunisations and common childhood illnesses
Immunisation questions test both the schedule and the contraindications. A mild illness with a low-grade fever is not a reason to defer a vaccine; a moderate to severe acute illness is. Live vaccines are the ones that require additional caution.
- Live vaccines — MMR and varicella; avoid in pregnancy and in significantly immunocompromised children
- Mild illness — not a contraindication to routine immunisation
- Croup — barking cough and inspiratory stridor; cool humidified air and calm handling
- Epiglottitis — drooling, tripod position, muffled voice; never inspect the throat and prepare for airway support
- Otitis media — common after upper respiratory infection; teach that bottles should not be given lying flat
Teach parents that fever itself is a normal immune response. The nursing priority is the child’s overall appearance and hydration, not the number on the thermometer.
Turn this guide into active review
Reading through notes once is recognition, not recall. Convert each section above into questions you answer from memory, then check yourself. The Pediatrics Nursing Study Notes Bundle packages this material as condensed, exam-ready PDF notes organised by condition, if you would rather review from a prepared set than build one.
Frequently asked questions: pediatric nursing
Why are paediatric doses always weight-based?
Children vary enormously in size at the same age, and their organ systems clear drugs differently. Calculating in mg/kg and checking against a safe range is the standard safeguard against overdose.
What is the earliest sign of respiratory distress in a child?
Tachypnoea, together with increased work of breathing such as nasal flaring and retractions. These appear well before cyanosis or a falling oxygen saturation.
How do I assess dehydration in an infant?
Use weight change as the most accurate measure, supported by mucous membranes, presence of tears, fontanelle fullness, capillary refill, and urine output.
Related guides on Lectures Note
- Fundamentals of Nursing Study Notes — ADPIE, safety, and core clinical skills
- 6-Week NCLEX Study Plan — weekly review goals and exam-day strategy