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NCLEX-RN Nursing Exam Study Guide

Key concepts, definitions, and exam tips organized by topic.

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Pediatric Nursing NCLEX-RN Study Guide


Overview

Pediatric nursing requires applying developmental theory, age-specific assessment norms, and disease pathophysiology to a rapidly changing patient population. The NCLEX-RN tests your ability to prioritize safety, recognize emergencies, and apply growth and development principles across all clinical scenarios. This guide synthesizes key concepts in growth and development, pediatric disease management, pharmacology, and emergency assessment to prepare you for exam success.


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Growth & Development


Overview

Developmental milestones, psychosocial theories, and immunization schedules form the foundation of pediatric nursing. The NCLEX frequently tests your ability to identify normal vs. abnormal development and select appropriate nursing interventions based on a child's developmental stage.


Key Developmental Theories


| Theorist | Stage | Age | Core Concept |

|----------|-------|-----|--------------|

| Erikson | Trust vs. Mistrust | 0–1 yr | Consistent caregiving builds trust |

| Erikson | Autonomy vs. Shame & Doubt | 1–3 yr | Independence through choices and boundaries |

| Erikson | Initiative vs. Guilt | 3–6 yr | Exploration and purpose-seeking |

| Erikson | Industry vs. Inferiority | 6–12 yr | Competence through skill mastery |

| Piaget | Sensorimotor | 0–2 yr | Object permanence develops at 8–12 months |

| Piaget | Preoperational | 2–7 yr | Magical thinking, egocentric |

| Piaget | Concrete Operational | 7–11 yr | Logical, concrete reasoning |


Critical Gross Motor Milestones


  • • 4 months: Holds head steady
  • • 6 months: Sits with support
  • • 9 months: Pulls to stand
  • • 12 months: Cruises furniture
  • • 12–15 months: ⚠️ Walks independently — absence by 15 months warrants evaluation
  • • 24 months: Runs; kicks a ball

    • Language Milestones


  • • 12 months: 1–2 recognizable words with meaning ("mama," "dada")
  • • 16 months: ⚠️ Absence of any words requires referral
  • • 24 months: 2-word phrases; ~50-word vocabulary
  • • 36 months: 3-word sentences; strangers understand ~75% of speech

    • Weight Milestones


  • • 4–6 months: Birth weight doubles
  • • 12 months: Birth weight triples
  • • Failure to meet these benchmarks → assess for feeding problems or underlying illness

    • Immunization Schedule Highlights


    | Vaccine | Age Given |

    |---------|-----------|

    | Hepatitis B (HepB) | Birth, 1–2 months, 6–18 months |

    | DTaP | 2, 4, 6 months; 15–18 months; 4–6 years |

    | MMR | 12–15 months; 4–6 years |

    | Varicella | 12–15 months; 4–6 years |

    | IPV | 2, 4, 6–18 months; 4–6 years |


    Procedure Preparation by Developmental Stage


    | Age Group | Fear | Nursing Approach |

    |-----------|------|-----------------|

    | Infant | Separation | Keep caregiver present; comfort immediately after |

    | Toddler | Loss of control | Offer limited choices; perform quickly |

    | Preschool | Bodily harm/mutilation | Simple explanations; use play; reassure integrity |

    | School-age | Loss of control | Honest explanations; allow participation; limited choices |

    | Adolescent | Altered body image | Ensure privacy; explain rationale; involve in decisions |


    Key Terms

  • • Object permanence — Understanding that objects exist even when out of sight (8–12 months, Sensorimotor stage)
  • • Autonomy — Toddler's drive for independence and self-control
  • • Gross motor milestone — Large muscle movement skills (walking, running)

    • ⚠️ Watch Out For

  • • Not all absent milestones = immediate pathology, but any absent milestone must be evaluated — do not reassure parents without recommending assessment
  • • School-age children use concrete thinking, not abstract reasoning — keep explanations simple and honest
  • • Offering too many choices to a toddler increases anxiety — limit to two options only

    • ---


    Pediatric Conditions & Disease Management


    Respiratory Emergencies


    #### Epiglottitis vs. Croup


    | Feature | Epiglottitis | Croup (LTB) |

    |---------|-------------|-------------|

    | Cause | H. influenzae type b (or Strep) | Parainfluenza virus |

    | Age | Any; commonly 2–7 years | 6 months–3 years |

    | Onset | Rapid | Gradual |

    | Cough | Muffled voice; no cough | Barking (seal-like) cough |

    | Position | Tripod position; drooling | May prefer upright |

    | Fever | High (>38.8°C) | Low-grade |

    | Priority | DO NOT examine throat; prepare for intubation | Humidified air; racemic epinephrine; corticosteroids |


    Cardiovascular Conditions


    #### Congenital Heart Defects — Shunt Direction


  • • Left-to-right shunts (Acyanotic): VSD, ASD, PDA

    • - Blood recirculates through lungs → pulmonary congestion

    - Symptoms: tachypnea, poor feeding, diaphoresis, failure to thrive

  • • Right-to-left shunts (Cyanotic): Tetralogy of Fallot, Transposition of Great Arteries

    • - Deoxygenated blood enters systemic circulation → central cyanosis

    - "Tet spells" — place child in knee-chest position to reduce right-to-left shunting


    #### Kawasaki Disease

  • • Primary complication: Coronary artery aneurysms
  • • Treatment: High-dose aspirin (exception to aspirin rule — no viral illness present) + IVIG
  • • Diagnostic criteria (CRASH): Conjunctivitis, Rash, Adenopathy (cervical), Strawberry tongue, Hand/foot changes

    • Gastrointestinal Emergencies


    #### Intussusception — Classic Triad

    1. Sudden colicky abdominal pain (child pulls knees to chest, then appears well between episodes)

    2. Sausage-shaped abdominal mass (right upper quadrant)

    3. Currant jelly stools (blood + mucus)


    ⚠️ Surgical/radiologic emergency — air or hydrostatic enema is first-line treatment


    Renal Conditions


    #### Nephrotic Syndrome vs. Nephritic Syndrome


    | Feature | Nephrotic | Nephritic |

    |---------|-----------|-----------|

    | Proteinuria | Massive (>3.5 g/day) — hallmark | Mild |

    | Hematuria | Absent or minimal | Present — hallmark |

    | Edema | Generalized (anasarca) | Periorbital, mild |

    | Hypoalbuminemia | Present | Less prominent |

    | Hyperlipidemia | Present | Absent |

    | BP | Normal or low | Hypertension |


    Oncology


    #### Acute Lymphoblastic Leukemia (ALL)

  • • Most common childhood cancer
  • • Classic presentation: pallor, fatigue, bone pain, hepatosplenomegaly, petechiae
  • • Priority during induction chemotherapy: Risk for infection due to neutropenia
  • • Neutropenic precautions: Private room, no fresh flowers/raw fruits, strict hand hygiene, avoid crowds

    • Infectious Conditions


    #### Bacterial vs. Viral Meningitis — CSF Comparison


    | CSF Finding | Bacterial | Viral |

    |-------------|-----------|-------|

    | WBCs | ↑ Neutrophils | ↑ Lymphocytes |

    | Protein | ↑ Elevated | Normal to slightly elevated |

    | Glucose | ↓ Decreased | Normal |

    | Appearance | Cloudy/turbid | Clear |


    Nursing priority: Administer antibiotics before LP if bacterial meningitis is highly suspected and patient is unstable


    Hematologic Conditions


    #### Sickle Cell Vaso-Occlusive Crisis — Priority Interventions

    1. IV hydration ← Priority (decreases blood viscosity)

    2. Opioid analgesia (pain management)

    3. Oxygen supplementation

    4. Rest and warmth (cold causes vasoconstriction)


    Endocrine Emergencies


    #### Diabetic Ketoacidosis (DKA) in Type 1 DM


    Classic Presentation:

  • • Blood glucose >250 mg/dL (often >300–500)
  • • Kussmaul respirations (deep, rapid breathing to blow off CO₂)
  • • Fruity breath (acetone from ketone bodies)
  • • Dehydration, nausea, vomiting, altered consciousness

    • Priority Intervention Sequence:

    1. IV fluid resuscitation (Normal Saline 0.9%) ← Priority first step

    2. Insulin infusion (regular insulin) — do NOT start until hydration initiated

    3. Potassium monitoring — insulin drives K⁺ intracellularly; risk of fatal hypokalemia


    Key Terms

  • • Tripod position — Child leans forward on hands to maximize airway; hallmark of epiglottitis
  • • Vaso-occlusive crisis — Sickle cell pain crisis caused by sickling and vessel occlusion
  • • Anasarca — Generalized massive edema; hallmark of nephrotic syndrome
  • • Kussmaul respirations — Deep, labored breathing pattern compensating for metabolic acidosis
  • • Induction chemotherapy — Initial phase of chemotherapy aimed at achieving remission

    • ⚠️ Watch Out For

  • • NEVER examine the throat or place a tongue blade in a child with suspected epiglottitis — complete airway obstruction can result
  • • DKA treatment: Fluid first, then insulin — starting insulin before fluids can worsen hypokalemia
  • • Aspirin IS appropriate in Kawasaki disease despite being contraindicated in other viral conditions
  • • Bacterial meningitis = decreased glucose (bacteria consume glucose); viral = normal glucose
  • • Currant jelly stools are a late sign of intussusception — abdominal mass and pain may appear first

    • ---


    Medication Safety & Pharmacology


    Aspirin & Reye Syndrome

  • • Reye Syndrome: Life-threatening hepatic failure + encephalopathy
  • • Triggered by aspirin use during viral illness (influenza, varicella)
  • • Safe alternatives: Acetaminophen or ibuprofen
  • • Exception: Aspirin IS used in Kawasaki disease (no viral cause)

    • Pediatric Dose Calculation


    ```

    Dose (mg) = Weight (kg) × Recommended dose (mg/kg)

    ```


    Safety checks:

  • • ✅ Does not exceed maximum adult dose
  • • ✅ Verified with second nurse per facility policy
  • • ✅ Calculated using current weight in kg (not pounds)

    • Acetaminophen Safety

  • • Maximum dose: 75 mg/kg/day; maximum 5 doses per 24 hours
  • • Toxicity mechanism: Accumulation of toxic metabolite NAPQI → hepatotoxicity
  • • Monitor: liver function tests; antidote is N-acetylcysteine (NAC)

    • Asthma Pharmacology


    | Drug Class | Example | Mechanism | Use |

    |------------|---------|-----------|-----|

    | SABA | Albuterol | Beta-2 agonist → bronchodilation | Acute rescue; onset 5–15 min |

    | ICS | Fluticasone | Anti-inflammatory | Daily controller |

    | LABA | Salmeterol | Long-acting bronchodilation | Add-on controller; not for acute |

    | Anticholinergic | Ipratropium | Blocks bronchoconstriction | Adjunct in severe attacks |


    Phenytoin Monitoring

  • • Therapeutic range: 10–20 mcg/mL
  • • Toxicity signs: Nystagmus, ataxia, confusion (NAC mnemonic: Nystagmus, Ataxia, Confusion)
  • • Additional monitoring: CBC, liver function tests, gingival hyperplasia assessment

    • Key Terms

  • • NAPQI — Toxic acetaminophen metabolite responsible for hepatotoxicity
  • • Beta-2 agonist — Medication class that relaxes bronchial smooth muscle
  • • Therapeutic range — Safe and effective drug concentration in blood
  • • mg/kg dosing — Weight-based dosing strategy essential in pediatric pharmacology

    • ⚠️ Watch Out For

  • • Never use aspirin in children with fever from suspected viral illness — always ask about varicella or flu exposure
  • • When calculating pediatric doses: convert pounds to kg first (divide lbs by 2.2)
  • • Albuterol treats acute bronchospasm — it is NOT a long-term controller medication
  • • Phenytoin toxicity: Nystagmus appears first, then ataxia, then confusion as levels rise

    • ---


    Pediatric Assessment & Emergency Care


    Pediatric Assessment Triangle (PAT)


    | Component | What to Assess | Signs of Concern |

    |-----------|---------------|-----------------|

    | Appearance | TICLS: Tone, Interactability, Consolability, Look/Gaze, Speech/Cry | Limp, unresponsive, inconsolable, abnormal cry |

    | Work of Breathing | Retractions, nasal flaring, grunting, position | Severe retractions, apnea, head bobbing |

    | Circulation to Skin | Color, mottling, pallor, cyanosis | Central cyanosis, mottling, pallor |


    > Purpose: Rapid visual assessment completed in 30–60 seconds before touching the child; guides immediate intervention priority


    Pediatric CPR Ratios


    | Scenario | Ratio |

    |----------|-------|

    | Single rescuer (child 1 yr–puberty) | 30:2 |

    | Two rescuers (child 1 yr–puberty) | 15:2 |

    | Infant (< 1 year), two rescuers | 15:2 |

    | Adult (any rescuer) | 30:2 |


    Endotracheal Tube Sizing (Child >2 years)


    ```

    Uncuffed ETT = (Age in years ÷ 4) + 4

    Cuffed ETT = (Age in years ÷ 4) + 3.5

    ```

    ⚠️ Always have one size above and below available


    Age-Specific Vital Sign Norms


    | Age | Heart Rate (bpm) | Respiratory Rate (breaths/min) | Systolic BP (mmHg) |

    |-----|-----------------|-------------------------------|---------------------|

    | Newborn | 100–160 | 40–60 | 60–90 |

    | Infant (1–12 mo) | 100–160 | 30–60 | 70–100 |

    | Toddler (1–3 yr) | 90–150 | 24–40 | 80–110 |

    | Preschool (3–6 yr) | 80–140 | 22–34 | 80–110 |

    | School-age (6–12 yr) | 70–120 | 18–30 | 85–120 |

    | Adolescent | 60–100 | 12–20 | 110–135 |


    APGAR Score


    | Sign | 0 | 1 | 2 |

    |------|---|---|---|

    | Appearance (color) | Blue/pale all over | Blue extremities, pink body | Pink all over |

    | Pulse | Absent | <100 bpm | ≥100 bpm |

    | Grimace (

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