NurseNest leaf logoNurseNest
Sign InStart Free
NurseNest leaf logoNurseNest
AboutPricingInstitutionsBlogToolsFeaturesClinical LabsEvidenceExams
Sign InStart Free
RNRPNNPMedicineSoonAlliedSoonNew GradSoonAdmissionsMore Exams ▼

Clinical study notes

Build smarter study habits before your next exam window.

Get concise nursing study updates, exam pathway notes, and new clinical resources from NurseNest.

NurseNestNurseNest

Adaptive nursing education built for modern clinical learners.

Supporting nurses globally

United States learnersNCLEX + REx-PN alignedClinical reasoning first
LinkedinInstagramYoutube

Study

Study
  • Lessons
  • Flashcards
  • Question Bank
  • Study Plans

Exams

Exams
  • Nursing Exams by Country
  • NCLEX-RN
  • NCLEX-PN
  • US Exam Hub

Support

Support
  • Help Center
  • Contact
  • FAQ
  • Blog
  • Email SupportPlease allow up to 4 business days for a response.

Institutions

Institutions
  • For Institutions
  • Why Institutions Choose NurseNest
  • Enterprise Solutions
  • Cohort Reporting
View All Resources

More Exams

  • NCLEX Question Bank
  • NCLEX CAT Simulator
  • Practice Exams
  • Allied Health Programs
  • Respiratory Therapy
  • Medical Laboratory Technology
  • Pre-Nursing
  • Ati TEAS + Hesi A2

Study Library

  • Adaptive CAT
  • NGN Case Studies
  • Lab Interpretation
  • ECG & Telemetry
  • NCLEX Study Plan
  • Nursing Blog
  • Nursing Glossary
  • FAQ
  • Support
  • Help Center
  • Flashcards
  • Features
  • About NurseNest
  • Careers
  • Contact

Evidence

  • Why NurseNest Works
  • Why Students Fail
  • How NurseNest Is Different
  • Science of Passing
  • Why We Built NurseNest
  • Success Stories

Policies

  • Privacy
  • Terms
  • Cookies
  • Acceptable Use
  • Editorial Policy
  • Content Accuracy
  • Educational Use
  • Exam Disclaimer
© 2026 NurseNest. All rights reserved.·United States

Study Nursing in Your Language

View All Languages →

Theme

NurseNest provides educational content for exam preparation and is not affiliated with NCLEX, regulatory colleges, or licensing bodies.

Loading Lessons

Preparing Your Lesson List

←NCLEX-PN lessons

NCLEX-PN

←NCLEX-PN Lessons

NCLEX-PN

  1. Home
  2. /NCLEX-PN
  3. /Pediatrics
  4. /Intellectual Disability and Developmental Delay

Intellectual Disability and Developmental Delay

Units:
Showing conventional values.
Free preview

Unlock the full lesson

You are reading the free preview of this NCLEX-PN lesson (United States). Create an account and subscribe to access every section, practice questions with rationales, and timed exams.

  • ✓Complete lesson — every section and clinical note
  • ✓Clinical pearls and exam tips
  • ✓Knowledge checks and assessments
  • ✓Linked flashcard decks for this topic
  • ✓Related practice questions with rationales
Start free trialCreate free accountSign in

Visual diagram

Intellectual Disability and Developmental Delay — clinical illustration

Intellectual Disability and Developmental Delay — visual reference

Overview

Overview

Intellectual disability (ID), called intellectual developmental disorder in the DSM 5 TR, is a neurodevelopmental condition involving significant limitations in intellectual fun...

Intellectual disability (ID), called intellectual developmental disorder in the DSM-5-TR, is a neurodevelopmental condition involving significant limitations in intellectual functioning and adaptive behavior—the conceptual, social, and practical skills used in daily life. Onset occurs during the developmental period, before age 22. An IQ score of approximately 70 or below can support assessment, but adaptive functioning and support needs—not a strict IQ cutoff alone—determine the diagnosis and severity. Developmental delay means that a child is not reaching expected milestones in one or more domains. It warrants evaluation but does not by itself establish intellectual disability. ID is not a disease but a condition resulting from diverse causes including genetic, prenatal, perinatal, and postnatal factors. Run a 60-second scan: breathing work and oxygenation, perfusion and end organs, neuro baseline, likely infection sources, and devices that can fail quietly. When two answers feel partly right, pick the one that reduces imminent harm and matches orders for the role you were given. Train yourself to state the primary risk in one short phrase before you read the options so incorrect options do not rewrite...

Next study step

Continue Your Learning

Finish the lesson first, then choose a focused activity to apply what you just reviewed.

Practice QuestionsApply this topic with board-style rationales.Open activity

Continue studying

Review FlashcardsPractice Related QuestionsContinue Weak Area RecoveryRecommended Next LessonTake A Readiness Quiz
Learning ContextWhat should I do next?
Practice PediatricsRetest from the same lesson context and competency.
Practice this topic
Flashcards (same topic)Topic practice testsAdaptive practice test (weak areas)← All lessons

Sign in to save progress on this lesson.

More in Pediatrics

Study related lessons in the same clinical topic, then practice with pathway-scoped questions.

  • Intussusception
  • Down Syndrome (Trisomy 21)
  • Cleft Lip
  • Developmental Dysplasia of the Hip (DDH)
  • Denver Developmental Screening Test (Denver II)
  • Fetal Alcohol Syndrome (FAS)

Browse all Pediatrics lessons·Practice Pediatrics questions

Remediation pathway

Progressive ladder — mechanism and interpretation first, then judgment practice and reassessment.

  1. 1
    LessonIntussusception

    Build conceptual scaffolding in the same competency cluster.

  2. 2
    LessonDown Syndrome (Trisomy 21)

    Build conceptual scaffolding in the same competency cluster.

  3. 3
    PrioritizePrioritization: Pediatrics

    Test clinical judgment under time pressure after review.

  4. 4
    FlashcardsPediatrics flashcards

    Spaced reinforcement for recall before reassessment.

  5. 5
    cat_examMixed-domain reassessment

    Verify the gap closed before a full exam simulation.

NCLEX-PN Blog Posts · Pediatrics Articles · NCLEX-PN Flashcards · NCLEX-PN Practice Questions · Tools · All Lesson Hubs · NCLEX-PN Exam Hub

Keep building readiness

Pair reading with structured lessons, then move into the question bank or practice exams on your pathway. Use free tools while you decide; upgrade when you want full banks and saved history.

  • Clinical lessons by pathway
  • Question bank overview
  • Practice exams overview
  • Clinical tools (free)
  • Blog
  • Plans & pricing

Lesson governance

NurseNest Clinical Education Review

Editorially reviewed
Review date
Sep 4, 2026
Updated
Sep 4, 2026

References

  • NCLEX-PN pathway blueprint and exam test plan
  • Facility policy and local scope of practice
  • Medication monographs and professional clinical guidance where applicable

Educational use only. Content supports exam preparation and clinical reasoning practice; it does not replace provider orders, facility policy, scope of practice, or independent clinical judgment.

Editorial policy · Content review policy · Educational disclaimer

Previous lessonLead Toxicity (Lead Poisoning)
Next lessonFetal Alcohol Syndrome

Check your understanding

Unlock the interactive lesson quiz with a plan that includes this NCLEX-PN pathway. You can still explore topic-filtered questions from the bank hubs below.

Open Topic in App BankQuestion Hub

Unlock full lesson + practice questions

10 more sections with scenarios, priorities, and review drills.

Start free trialSign in
CAT ReadinessCheck adaptive readiness when you are ready to test.
Open activity
FlashcardsReview recall prompts tied to the same study pool.Open activity
Practice ExamsBuild stamina with exam-mode practice.Open activity
Exam OverviewContinue with a related study activity.Open activity
Lab InterpretationConnect abnormal values to nursing actions.Open activity
Medication MathReinforce dosage, infusion, and safety calculations.Open activity
Skills refreshersContinue with a related study activity.Open activity
Pharmacology PracticeConnect drug classes to monitoring priorities.Open activity
Prioritization & DelegationPractice who to see first and what to escalate.Open activity

Related study on this pathway

🗂Study Flashcards

  • NCLEX-PN flashcards

✏️Practice Questions

  • Pathway practice questions — NCLEX-PN

📝Related Articles

  • Neurological nursing articles

📊Check Your Readiness

  • Adaptive CAT prep — NCLEX-PN

🔗Explore

  • NCLEX-PN study hub