HESI Test: A2 Admission Exam, Exit Exam, and Specialty Exams Explained
HESI test guide: A2 admission exam sections, Exit Exam for NCLEX prediction, Specialty exams, fees, scoring, retake rules, and study strategies.

HESI Test: Three Distinct Exams in One Family
The HESI test is actually three distinct exam types published by Elsevier and used widely across nursing education in the United States. The HESI A2 (Admission Assessment) is taken before nursing school admission to demonstrate readiness for the nursing curriculum. The HESI Exit Exam is taken at the end of a nursing program to predict NCLEX-RN performance and is often required for graduation.
HESI Specialty exams are taken during nursing school for individual course content like Pharmacology, Medical-Surgical Nursing, Maternity, Mental Health, and others. Each version serves a different purpose and has its own format, scoring, and stakes. Understanding which HESI you are facing matters for choosing the right preparation strategy.
The HESI A2 dominates discussion among prospective nursing students because passing it is the gateway to nursing school admission at the many institutions that accept HESI scores. Sections include Math, Reading Comprehension, Vocabulary and General Knowledge, Grammar, Biology, Chemistry, Anatomy and Physiology, and Critical Thinking. Some schools also use optional Personality Profile and Learning Style assessments. Each section scores 0-100 percent independently. Most nursing schools require 75-80 percent minimum across the sections they evaluate; competitive programs often require 85-90 percent or higher. The HESI A2 Exam page covers the admission test in deeper detail.
The HESI Exit Exam has higher stakes because it predicts NCLEX-RN performance and many nursing programs require a minimum exit exam score for graduation. Students who do not meet the required exit exam score sometimes face delayed graduation, required remediation programs, or in some cases removal from the program. The exam correlates strongly with NCLEX-RN first-attempt pass rates — students scoring 850+ on the HESI Exit typically pass NCLEX-RN on first attempt around 95-99 percent of the time; students scoring below 850 see substantially lower pass rates. The broader HESI overview connects the family of exams.
The HESI brand has become so ubiquitous in nursing education that the word "HESI" sometimes refers to whichever HESI variant is currently relevant in context. A prospective nursing student saying "I need to take the HESI" likely means HESI A2. A senior nursing student saying the same likely means Exit Exam. A nursing student mid-program likely means a Specialty exam for an upcoming course. Asking which version is relevant prevents wasted preparation. The advice in this article focuses on HESI A2 because it is the most commonly searched and the highest-stakes for prospective students starting their nursing journey.
HESI Test Quick Reference
Publisher: Elsevier. Three main variants: A2 (admission), Exit (post-program), Specialty (mid-program). HESI A2 sections: Math, Reading, Vocab, Grammar, Biology, Chemistry, A&P, Critical Thinking. HESI A2 scoring: 0-100% per section. Typical minimum: 75-80% per section for most nursing schools. Format: Computer-based at school testing centres, PSI, or online proctored. Cost: $40-$110 depending on version and proctor type. HESI Exit: 850+ score predicts strong NCLEX-RN pass probability. Retake policy: Varies by school — typically 30-90 day wait between attempts.
HESI A2: The Nursing School Admission Exam
The HESI A2 is the most-encountered HESI test for prospective nursing students. The exam evaluates readiness for nursing school across academic and personal aptitude domains. Schools select which sections they will require — there is no universal A2 configuration. Some schools require all academic sections; others require only Math, Reading, and Grammar; others add Biology and Chemistry. Anatomy and Physiology is an increasingly common requirement at competitive programs. Confirming which sections your target school requires before scheduling the exam prevents either wasted preparation time on unneeded sections or surprise gaps in required sections.
Section formats and content. Math covers basic operations, fractions, decimals, percentages, ratios, proportions, measurement conversions, and basic algebra. Reading Comprehension presents passages and tests understanding of main ideas, inferences, and vocabulary in context. Vocabulary tests medical and general terminology. Grammar tests parts of speech, sentence structure, and standard usage. Biology covers basic concepts including cells, classification, water, and biological systems. Chemistry covers basic atomic structure, chemical reactions, and common compounds. Anatomy and Physiology covers body systems and structures. Critical Thinking tests reasoning across scenarios.
Each section runs 25-55 questions with time limits per section (typically 50-60 minutes per section). The total exam time depends on how many sections your school requires, ranging from 2 hours for a minimal configuration to 5+ hours for the full battery. Computer-based delivery at the nursing school's testing facility, PSI centres, or online proctored from home (option expanded substantially since 2020). Results typically available immediately after completion for most sections; some sections require manual scoring with 1-2 day delays. Most schools require results submitted directly from Elsevier to verify authenticity.
The HESI A2 has gradually replaced or paralleled standalone tests at many nursing programs over the past two decades. Programs adopted HESI because the publisher provides not just the admission test but a full ecosystem of educational resources — Specialty Exams aligned to nursing curricula, Exit Exams for graduation, and continuing education resources. The integration encourages adoption across the full program rather than just admissions. Some students complain about HESI dominance because it adds testing fees through nursing school; the trade-off is consistent benchmarking that helps programs identify struggling students earlier.

HESI A2 Section Content Breakdown
Basic arithmetic, fractions, decimals, percentages, ratios and proportions, measurement conversions, basic algebra, and dosage calculation fundamentals. Most heavily weighted section for many programs because nursing math directly applies in medication administration. Practice with conversion problems (metric to standard, mg to mcg, etc.) and ratio-proportion calculations particularly important.
Multi-paragraph passages followed by questions testing main idea identification, inference, supporting details, vocabulary in context, and logical conclusions. Nursing-context passages common. Practice with reading complex texts under time pressure builds both speed and accuracy. Schools weight reading heavily because nursing requires constant interpretation of patient records, orders, and policies.
Medical terminology, common vocabulary, prefixes, suffixes, roots. Many questions involve identifying word meanings in context or selecting synonyms. Healthcare-specific vocabulary (anatomy terms, disease names, procedural terms) appears more heavily than general vocabulary in many test versions. Flashcards or vocabulary lists from HESI A2 prep books cover most likely terms.
Parts of speech, sentence structure, punctuation, common errors, standard English usage. Identifying errors in sentences, choosing correct grammatical forms, and recognising appropriate vocabulary in formal contexts. Practice with formal writing patterns helps because casual conversational grammar differs from the formal standard the exam tests.
Basic biology concepts including cells, biological molecules (proteins, carbs, lipids), classification, photosynthesis, cellular respiration, and basic genetics. Required by some nursing programs as part of HESI A2; not required by all. Review of high school biology textbook content covers most expected material. Recent biology coursework reduces preparation time substantially.
Chemistry (30 questions): atomic structure, chemical reactions, compounds, basic stoichiometry. Anatomy and Physiology (30 questions): body systems, major organs, basic physiology. Critical Thinking (30 questions): scenario-based reasoning. Each section selectable independently. Schools requiring A&P typically include detailed coverage in nursing curriculum prerequisites already.
Scoring and What Schools Require
Each HESI A2 section produces an independent 0-100 percent score. The overall composite score is usually the average of the sections taken. Most nursing schools require a minimum score per section (typically 75 percent or 80 percent) rather than just an overall average — this prevents students with one very strong section masking weaker sections. Some schools have different minimums for different sections (Math typically higher than Vocabulary, for example). Reading the specific school's HESI requirements is essential before scheduling the test. Competitive programs often require 85-90 percent or higher, with admission being more selective than the minimum suggests.
Multiple programs accept the same HESI A2 score; you do not need to retake the test for each school you apply to. Scores can be sent to multiple schools through Elsevier's distribution system. Some schools require the original score report sent directly from Elsevier to verify authenticity; others accept screenshots from the candidate. Asking specifically how each school wants to receive scores prevents application processing delays. Score validity typically runs 2-3 years from the test date; older scores may need retaking for current admission cycles.
One common point of confusion: HESI A2 reports both individual section scores and a composite score, and schools differ in which they emphasise. Some schools accept the composite score as the primary admission metric; others require minimum scores in each individual section regardless of composite. Reading school admission pages carefully reveals which interpretation each school uses. The implication: a student with 95% in some sections and 70% in others may meet composite thresholds but fail per-section minimums at some schools while qualifying at others.
HESI Test Versions and Their Purposes
Taken before nursing school admission. Evaluates academic readiness across Math, Reading, Vocabulary, Grammar, Biology, Chemistry, A&P, and Critical Thinking. Schools select which sections to require. Scores 0-100% per section, typical minimum 75-80%. Required by many ADN, BSN, LPN, and accelerated nursing programs. Fee $40-$70 typical; online proctored option adds proctor fee. The HESI test most prospective nursing students encounter.
HESI Exit Exam: The NCLEX Predictor
The HESI Exit Exam is taken at or near graduation from BSN or ADN nursing programs. Most programs use it as a graduation requirement; some use it as a benchmark without making it required. Scores correlate strongly with NCLEX-RN first-attempt pass rates. The published correlation typically shows: 850+ score → 95-99% NCLEX-RN first-attempt pass; 800-849 → 88-94% pass; 750-799 → 75-87% pass; below 750 → substantially lower pass rates. The prediction is good but not perfect — individual students vary, and the exam is a snapshot of test-day performance rather than absolute prediction.
Schools that require a minimum HESI Exit score (commonly 850 or 900) have remediation programs for students who score below the threshold. Remediation typically involves 4-12 weeks of focused review on weak content areas, additional practice exams, and a retake. Some programs allow up to three attempts before requiring formal repeat coursework. The high-stakes nature creates anxiety but also focuses preparation effort throughout the senior year of nursing school. Students who prepare consistently across nursing school rarely face the difficult remediation situation; cramming late in the program often produces marginal pass scores or failures.
Conversion of the published score to predicted NCLEX-RN pass probability varies slightly between Elsevier's published research and individual program experience. Programs sometimes calibrate to their own historical data showing how their graduates scoring at various HESI Exit levels performed on NCLEX-RN. The published cutoffs (850, 900, etc.) are guides rather than universal cutoffs. Talking with academic advisors about specific program data provides better individual benchmarking than relying solely on Elsevier's national statistics.

HESI test requirements vary substantially between nursing schools. Some accept HESI A2 only; others accept TEAS only; some accept either; some require their own custom assessment. Required sections, minimum scores, retake rules, score validity periods, and how scores are submitted all vary. Before scheduling any HESI test, confirm with the specific schools you are applying to: which test version they require, which sections, minimum scores per section, retake policies, and submission procedures. Building this checklist for each target school before testing prevents wasted attempts and delayed applications. Generic preparation advice does not substitute for school-specific requirement research.
HESI Specialty Exams Throughout Nursing School
HESI Specialty exams test content from individual nursing courses. Common specialty versions include HESI Fundamentals (basic nursing concepts), HESI Pharmacology, HESI Medical-Surgical, HESI Maternity, HESI Pediatrics, HESI Mental Health, HESI Community Health, HESI Leadership, and HESI Critical Care. Programs use these in different ways — some require minimum scores to pass courses, some use them as benchmarks without grade impact, some use them only for remediation identification. The specialty exams typically predict NCLEX-RN performance in their respective content areas, helping students target preparation gaps over the nursing program.
Each specialty exam runs 50-100 questions taking 1-2 hours computer-based. Scores 0-1500 scale (different from A2's percentage scale). The Elsevier conversion table indicates predicted NCLEX performance for the specific content area. Scores below program thresholds trigger remediation in the specialty content. Cumulative specialty performance over nursing school often correlates with comprehensive exit exam results — students with strong specialty scores throughout typically perform well on exit; students with patterns of weak specialty scores often need substantial remediation before graduating.
The cumulative value of strong specialty exam performance over nursing school cannot be overstated. Students who consistently score 850+ on specialty exams throughout the program typically face minimal remediation at exit. Students with patterns of marginal specialty scores often need substantial remediation despite passing nursing courses. Treating specialty exams as serious benchmarks rather than just course assessments produces both immediate course success and easier path to graduation and NCLEX-RN. The cumulative pattern matters more than any single specialty score.
Preparing for the HESI A2: A Practical Plan
- ✓Confirm specific HESI A2 sections required by each target nursing school
- ✓Note minimum scores per section and competitive scores at each school
- ✓Register for HESI A2 through Elsevier or the nursing school's testing centre
- ✓Purchase HESI A2 Study Guide (Elsevier official, ~$40)
- ✓Take baseline practice test to identify weakest sections
- ✓Allocate study time proportional to weakness — more on weak sections
- ✓Use Mosby HESI A2 Test Prep as secondary resource if needed
- ✓Take 3+ full practice tests scoring above target before scheduling actual exam
- ✓Schedule test 4-6 weeks ahead with focused preparation timeline
- ✓On test day: photo ID, arrive 15-20 minutes early, calculator if allowed
- ✓Submit scores to all target schools via Elsevier system
HESI vs TEAS: Which Test Are You Taking?
The TEAS (Test of Essential Academic Skills, published by ATI) is the other major nursing school admission assessment. Most nursing schools accept one or the other, with a smaller number accepting either at applicant choice. Confirming which test your target schools require is the first step — preparing for the wrong test wastes substantial time. HESI A2 is generally more comprehensive (more sections, more potential content) than TEAS (which has four sections: Reading, Math, Science, English & Language Usage). HESI takes 2-5 hours; TEAS takes about 3.5 hours.
Content focus differs. TEAS Science is heavy on Anatomy and Physiology with some Biology and Chemistry; HESI A2 separates Biology, Chemistry, and A&P into independent sections that schools can mix and match. TEAS Math is generally considered slightly harder than HESI A2 Math by students who have taken both. HESI A2 Vocabulary is typically heavier on medical terminology than TEAS English & Language Usage. Both tests use similar question formats and difficulty levels overall. Students who prepare well for either test typically perform similarly on the other with minimal additional preparation.
Some students take both tests because they apply to schools with different requirements. Preparation overlaps substantially — strong study for either test produces meaningful preparation for the other. The marginal preparation needed to convert TEAS readiness to HESI A2 readiness (or vice versa) typically takes 2-4 weeks of targeted study on the format-specific differences. Students unsure which test is required should research their full school list before committing to one preparation path. Taking both is not unusual for students applying broadly.
Study Resources for the HESI A2
Elsevier publishes the official HESI A2 Study Guide ($40-$50) as the most direct preparation source. Content alignment with the actual exam is strong because both come from the same publisher. The study guide covers all sections, includes practice questions, and provides a final practice test. Mosby's HESI A2 Test Prep is the second-most-popular preparation resource, offering structured review with practice questions across the sections. Both books are widely available through major book retailers and nursing school bookstores. Combining both resources gives strong coverage without excessive cost.
Online practice question banks and apps supplement book-based study with format that more closely matches the actual computerised test experience. Quizlet decks for HESI A2 vocabulary are widely available and free. The McGraw-Hill 5-lb book of HESI A2 Practice Problems provides high-volume practice for students who want substantial drill material. YouTube channels with HESI A2 review videos help auditory learners. Combining several resource types — book, practice questions, video — produces stronger preparation than relying on any single resource.

HESI Test Numbers
Common HESI Test Preparation Mistakes
Spreading time evenly across HESI A2 sections wastes preparation on areas you may already be strong in. Take a baseline practice test, identify weakest sections, and allocate study time proportionally. A student strong in Reading but weak in Math should spend most of the time on Math, not split evenly. Focused preparation produces better score outcomes than diluted preparation.
Schools select which HESI A2 sections to require. Studying sections that your target schools do not require wastes time. Studying without all required sections produces failed admission applications. Confirming the required sections per school before starting preparation focuses effort efficiently. The school's admissions page or contacting admissions directly provides this information.
HESI A2 sections have time limits. Practice questions without time pressure miss the speed component of actual test performance. Taking full practice tests under realistic timed conditions reveals whether your accuracy holds up at exam pace. Students who score well on untimed practice but poorly on timed practice need specific time management practice before the actual test.</p>
Senior nursing students sometimes underestimate the HESI Exit Exam thinking it is just a benchmark. At schools that require a minimum exit score for graduation, the exam can delay graduation by months if failed. Treating the exit exam as high-stakes from the start of senior year produces better preparation than cramming in the last weeks before the exam. Continuous review throughout the program supports both Exit and NCLEX-RN performance.
Retake Rules and Score Validity
HESI A2 retake policies vary by school rather than being set centrally by Elsevier. Most schools allow retakes after a 30-90 day waiting period. Some schools limit retakes to 2-3 attempts within a year. Others allow unlimited retakes with each attempt costing the full fee. Some schools require remediation programs between attempts. Reading each target school's specific policy before paying for an attempt prevents surprise restrictions. Multiple attempts within a short window typically do not produce dramatically different scores without focused remediation between attempts; the recommendation is taking 2-4 weeks minimum between attempts for meaningful improvement.
Strategic timing of retakes matters substantially. Students who retake immediately after failing without addressing the underlying weakness typically see minimal improvement and waste retake attempts. The recommended pattern: review the failed score report to identify weak sections, complete focused remediation on those sections over 4-6 weeks, take additional practice tests confirming improvement, then schedule the retake. This produces meaningful score improvement; rushed retakes do not.
Personality Profile and Learning Style assessments are optional add-ons that some schools require for admission. The Personality Profile reports traits like assertiveness, attitudes toward learning, and motivation patterns. The Learning Style assessment categorises preferences (visual, auditory, kinesthetic). These results inform nursing program advising rather than determining admission, but submitting them when required is essential.
HESI vs TEAS: Honest Comparison
- +HESI: More comprehensive (up to 8+ sections) for thorough academic assessment
- +HESI: Schools can customise required sections per program
- +HESI: Strong predictive validity for nursing program success
- +HESI: Online proctored option for at-home testing
- +TEAS: Shorter total test time (~3.5 hours)
- +TEAS: Simpler 4-section structure (Reading, Math, Science, English)
- +TEAS: Widely accepted by competitive BSN programs
- +Either: Many nursing schools accept either test type
- −HESI: Longer total time when full battery required (up to 5+ hours)
- −HESI: Section configuration varies by school requiring planning
- −HESI: Slightly more nursing-specific content may not suit non-nursing study
- −TEAS: Science section heavy on A&P may disadvantage less-prepared students
- −TEAS: Math sometimes harder than HESI Math
- −Either: Test fees, proctor fees, retake fees accumulate substantially
- −Either: Requires significant prep time (typically 6-12 weeks focused study)
ATI Questions and Answers
About the Author
Attorney & Bar Exam Preparation Specialist
Yale Law SchoolJames R. Hargrove is a practicing attorney and legal educator with a Juris Doctor from Yale Law School and an LLM in Constitutional Law. With over a decade of experience coaching bar exam candidates across multiple jurisdictions, he specializes in MBE strategy, state-specific essay preparation, and multistate performance test techniques.