If you are searching how many anatomy and physiology questions are on the HESI, the short answer is 30 scored items in 25 minutes, but the full HESI A2 exam contains far more than that single section. The complete HESI A2 entrance exam includes eight academic subtests plus an optional personality and learning style profile, totaling between 326 and 350 questions depending on which sections your nursing school requires. Understanding the exact question counts helps you build a realistic study plan and pace yourself on test day.
Most candidates approach the HESI exam without knowing that each school selects a custom mix of sections, which means your friend who took the test last semester may have answered a different number of questions than you will. Reading Comprehension, Vocabulary, Grammar, Math, Biology, Chemistry, Anatomy & Physiology, and Physics each carry their own item count, time limit, and weighting. Ignoring this variability is one of the top reasons students underperform on the no hesi diagnostic phase of prep.
This guide breaks down every section by question count, time allotment, and scoring weight using the most recent 2026 Elsevier HESI A2 version 2 specifications. You will see exactly how many items appear in each subject, how many are unscored pilot questions, and what minimum passing scores typically look like across BSN, ADN, and LPN programs. Whether you are 12 weeks out or sitting for a retake next week, the numbers below give you the blueprint to allocate your study hours wisely.
The HESI A2 is a computer-based, multiple-choice test administered through Prometric centers, on-campus testing labs, or remote proctoring via ProctorU. Each section is timed independently, and once you exit a section you cannot return to it. The total seat time, if a school requires all sections, runs roughly four hours and fifteen minutes including the optional Learning Style and Personality Profile add-ons that schools sometimes attach.
Knowing the exact item counts also tells you how forgiving the test is. Anatomy & Physiology, for example, allows roughly 50 seconds per question, while Reading Comprehension gives you about one minute per item across passages. Math questions average 75 seconds each because of the multi-step calculations involved. These ratios determine which sections demand speed drills and which reward careful, methodical reading during your final prep weeks.
Below you will find the official 2026 question counts, real pass-rate data from nursing schools across the United States, study scheduling advice, and practice question samples that mirror the actual exam blueprint. We will also flag the common mistakes that cost first-time test takers their seats in competitive programs where a 90 percent composite is the unofficial cutoff.
By the end of this article you will know precisely how many questions you face, how to budget your minutes, and which sections deserve the lion's share of your prep time based on your target program. Bookmark this page and refer back to it after every practice test to recalibrate your weakest areas.
The Anatomy & Physiology section is the most frequently searched topic among HESI A2 candidates because it carries disproportionate weight in nursing program admissions decisions. The section contains exactly 30 questions, of which 25 are scored and 5 are unscored experimental items that Elsevier uses to validate new content for future test versions. You have 25 minutes to complete the section, which works out to approximately 50 seconds per question, leaving little room for guessing or extended deliberation.
Content coverage spans 12 organ systems with the heaviest emphasis on the cardiovascular, respiratory, nervous, and musculoskeletal systems. Expect roughly four to five questions on each major system, with two to three additional items covering cellular biology, tissue types, and homeostatic mechanisms. The questions are not memorization-only; many require you to apply structural knowledge to a clinical scenario, such as predicting which muscle is affected by damage to a specific nerve root or identifying the consequence of valve dysfunction.
Unlike a college hesi preparation textbook chapter quiz, the HESI A2 anatomy items rarely give you obvious distractors. Two of the four answer choices are usually plausible, and the test rewards candidates who can distinguish between superficially similar structures, such as the difference between the sinoatrial node and the atrioventricular node or between the pyloric and cardiac sphincters.
Diagram-based questions appear on roughly one quarter of all anatomy items. You may see a labeled cross-section of the heart, a sagittal view of the brain, or a posterior view of skeletal landmarks, and be asked to identify a structure by letter. Spending time with high-quality anatomical atlases during the final two weeks of prep is essential because the on-screen images are stylized and require pattern recognition rather than verbal recall.
Pass-rate analysis from a 2025 multi-school survey shows the Anatomy & Physiology subtest has the lowest first-attempt pass rate of all HESI A2 sections, hovering at 54 percent for candidates scoring 75 percent or higher. Reading Comprehension and Vocabulary, by contrast, see first-attempt rates above 80 percent. This gap reflects the breadth of medical terminology required and the limited time per question.
If your target nursing program weights science subtests separately, as the majority of competitive BSN tracks now do, the 30 anatomy questions carry roughly 12 percent of your overall admissions index. Improving your raw score from 22 correct to 27 correct can shift you from a borderline applicant to a competitive one. Allocate at least 35 percent of your total science prep time to this single section.
Finally, remember that the 5 unscored pilot items are randomly distributed throughout the section and look identical to scored questions. Do not skip an unfamiliar question hoping it is unscored. Answer every item, flag your guesses for review if time permits, and move forward briskly to keep your pacing on track.
The three English subtests collectively contribute 147 questions: 47 in Reading Comprehension, 50 in Vocabulary & General Knowledge, and 50 in Grammar. Reading Comprehension presents short passages of 200 to 500 words followed by inference, main idea, and detail questions. Each passage has between three and seven questions attached, and you should plan to spend roughly one minute per question on average across the 60-minute section.
Vocabulary leans heavily on medical and health-related terms such as anatomical descriptors, pharmacological roots, and clinical adjectives, while Grammar tests pronoun agreement, parallel structure, subject-verb concord, and common usage errors. Strong test takers complete these subtests with 5 to 10 minutes remaining, which they use to revisit flagged items. A consistent hesi a2 practice test routine of two passages per day for six weeks generally lifts Reading scores by 8 to 12 percentage points.
The Basic Math Skills subtest contains 50 questions with a 50-minute time limit, putting you at exactly 60 seconds per question. Content includes whole-number operations, fractions, decimals, ratios, proportions, percentages, conversions between standard and metric units, basic algebra, and dosage calculations. The on-screen four-function calculator is available, but most students find longhand work faster for simple arithmetic and reserve the calculator for multi-step problems.
Dosage calculation items typically account for 6 to 8 questions and require you to apply ratio-proportion logic, dimensional analysis, or formula methods to determine pediatric or adult medication doses. These are the highest-stakes items because nursing programs view weakness in clinical math as a red flag. Practice exam drills focused exclusively on dosage problems should occupy 25 percent of your math prep window.
The three science subtests each contain 30 questions with 25-minute time limits, for a combined 90 items in 75 minutes. Biology emphasizes cell structure, mitosis and meiosis, basic genetics, photosynthesis, cellular respiration, and ecological principles. Chemistry covers atomic structure, the periodic table, chemical bonding, balancing equations, acids and bases, stoichiometry, and basic organic functional groups.
Anatomy & Physiology, as detailed above, ranges across all major organ systems. Roughly 80 percent of nursing schools require Biology and A&P, while only 65 percent require Chemistry. A handful of programs, mostly accelerated BSN tracks, also require Physics. Confirm with your target school's admissions office which science subtests will count toward your composite score before mapping out your prep schedule.
The Anatomy & Physiology, Biology, and Chemistry subtests each give you only 50 seconds per question. Students who score 90 percent or higher complete each science section with 2 to 4 minutes remaining for review. If your timed practice tests show you finishing exactly at the buzzer, you are too slow and need to drill recognition speed, not depth.
HESI A2 scoring is reported as a percentage for each individual subtest plus an overall composite score that averages the academic subtests you took. There is no single national passing score because each nursing program sets its own cutoffs. The most common minimum is 75 percent overall with no individual subtest below 70 percent, but competitive BSN programs frequently require 80 percent overall and 80 percent on each science subtest, while accelerated programs may push the bar to 85 or 90 percent.
The score report you receive immediately after testing breaks down your performance question by question, showing which content categories you missed within each subtest. This granular feedback is invaluable for retake preparation because it tells you whether to focus on, for example, the endocrine system or cellular respiration rather than reviewing an entire textbook. Save your score report as a PDF and refer to it weekly during your retake study window.
Weighting varies by program. Some schools average all subtests equally, others triple-weight the science scores, and a small number admit purely on the composite without examining individual sections. Before you take the hesi a2 for the first time, contact your target school's admissions office and ask for the exact weighting formula. This information directly determines where to invest your study hours.
The 5 unscored pilot items in each subtest do not affect your reported score, but they do consume your time. Elsevier rotates these items every six months to validate new questions for future test forms. Because you cannot identify which items are scored, treat every question as if it counts. The good news is that the unscored items often appear slightly harder than scored items, so a question that feels impossible may be one of the pilots.
Pass-rate data from a 2025 survey of 47 nursing programs shows the median first-attempt overall pass rate hovers around 64 percent. Reading Comprehension and Vocabulary lead the pack with 82 and 78 percent first-attempt success, while Anatomy & Physiology trails at 54 percent. Chemistry sits at 61 percent. These numbers tell you immediately where your prep dollars and hours should go: science sections are the differentiator.
If you fail to meet a program's threshold, most schools require a 60-day waiting period before retake and limit total attempts to three within a 12-month window. Some schools allow retakes only of specific subtests rather than the full battery, but Elsevier itself permits retakes of the entire exam after the waiting period. Always check both the school policy and the Elsevier retake rules before scheduling.
Score validity typically lasts two years, which means a strong score taken during prerequisites can carry you through application cycles. However, some accelerated programs require scores within 12 months of matriculation, so confirm validity windows with each school you apply to. A 90 percent composite score taken 18 months ago may still qualify you for the program you really want.
Building a study schedule around the exact question counts gives you a measurable target for each prep week. With 326 academic questions across eight subtests, a 12-week schedule allocates roughly 27 practice questions per day, distributed proportionally to subtest weight. Schools that emphasize science should weight your daily practice toward the 90 combined science items, meaning at least 12 of your 27 daily questions should come from Biology, Chemistry, and Anatomy & Physiology pools.
The most effective prep blueprint follows a 4-3-3-2 weekly distribution: 4 hours on your weakest science subtest, 3 hours each on the next two weakest subjects, and 2 hours on your strongest sections to maintain sharpness. After six weeks of content review, transition to full-length timed simulations every Saturday for the final four weeks. This rhythm mirrors the actual exam endurance demand and exposes pacing issues early.
Use the official Elsevier Evolve practice questions as your primary content source, supplemented by free hesi a2 exam banks and reputable third-party question sets. Mix question sources because each publisher emphasizes slightly different topics, and overfitting to one source can leave you blindsided by content angles you have not seen. Track your accuracy by content category in a simple spreadsheet to spot patterns.
Flashcards remain the highest-ROI study tool for the Vocabulary and Anatomy subtests. Make 200 to 300 cards covering medical prefixes, suffixes, root words, and anatomical structures. Spaced repetition apps such as Anki automatically schedule cards for review based on your recall accuracy, ensuring you spend more time on weak cards and less on mastered ones. Twenty minutes per day across six weeks produces measurable score gains.
For the Math subtest, drill dosage calculations daily. The ratio-proportion method and dimensional analysis are the two most commonly tested approaches, and fluency in both insulates you against unfamiliar problem structures. Aim for 95 percent accuracy on a 20-question dosage drill before considering this content mastered. Calculator-free practice is essential because many test takers waste time toggling between mental math and the on-screen calculator.
Sleep, hydration, and physical exercise during the final two weeks correlate strongly with score improvements. A 2024 study of nursing applicants found that candidates sleeping at least seven hours per night during the week before testing scored 4 to 6 percentage points higher than peers averaging six hours or less. Skipping a study session to sleep is almost always the right trade in your final week of prep.
Finally, take a full diagnostic practice test 10 days before your scheduled exam date. This gives you enough time to identify and remediate any lingering weak spots without cramming. Treat the diagnostic as a real exam: same start time, same break structure, same testing environment. Your score on this dry run typically predicts your actual exam score within 3 percentage points.
The final two weeks before your HESI exam should focus on consolidation rather than new learning. Review your accumulated practice test data, identify the three lowest-performing content categories across all subtests, and dedicate 60 percent of your remaining study time to those areas. Resist the temptation to revisit topics you have already mastered because the marginal score gain there is much smaller than the gain available in weak categories.
Build a 48-hour test-day protocol covering meals, travel logistics, and sleep schedule. Confirm your testing location, parking, and ID requirements two days before. Pack the night before: government-issued photo ID, registration confirmation, a watch without smart features, and snacks for breaks if your testing center permits them. Many candidates underperform because last-minute logistics consume mental energy that should be reserved for the exam.
On exam morning, eat a balanced breakfast with protein, complex carbohydrates, and minimal caffeine beyond your normal baseline. Arriving over-caffeinated triggers anxiety and slows decision-making on time-pressured items. Do a 10-minute warm-up by reviewing your top 20 flashcards or solving five sample math problems to prime your brain without exhausting it. Cold-starting on the first Reading Comprehension passage is a common pacing trap.
During the exam, use the section-by-section structure to your advantage. After completing each subtest, take 60 seconds to breathe, hydrate, and mentally reset before the next section begins. Carrying frustration from a difficult section into the next one is the single biggest avoidable cause of cascading errors. The sections are scored independently, so a tough Anatomy & Physiology section does not doom your Math performance unless you let it.
If you encounter a question you have never seen anything like before, do not panic. Some items are deliberately written at the upper end of difficulty to differentiate top scorers. Eliminate the two clearly wrong choices, make your best inference from context, flag the item, and move on. Spending three minutes wrestling with one item costs you three other items later in the section that you could have answered correctly.
After the exam, your score report appears on screen within minutes. Print or save a copy immediately because some testing centers limit how long you can access the detailed breakdown. Forward the report to your target nursing programs through the Elsevier portal, confirm delivery by checking the schools' application portals 72 hours later, and celebrate appropriately. You have earned it.
If retaking, schedule your follow-up exam between 60 and 90 days from your first attempt. This window allows targeted remediation without losing the foundational knowledge you built. Use your score report to design a focused study plan, drilling only the content categories where you fell below 80 percent. Retakers who follow this targeted approach typically improve their composite score by 8 to 15 percentage points on the second attempt.