The HESI A2 — Health Education Systems, Inc. Admission Assessment — is the gatekeeping exam for most nursing and allied health programs across the United States. You won't get far without it. Nursing schools use your scores to determine whether you're academically ready for their program, and the cutoffs aren't forgiving.
Here's what makes it different from other pre-nursing tests: the HESI A2 isn't one test. It's a battery of up to eight subject areas, and each school picks which sections they require. You might need five sections at one school and seven at another. Before you start prepping, confirm with your specific program which subjects they test on — don't guess.
The exam is computer-based, delivered through Elsevier's EVOLVE platform, and can be taken at your school's testing center or an approved proctored site. Most candidates finish in three to four hours, though the full eight-section version can run five hours or more. The scoring model is direct: each section scores on a 0–100 scale independently. There's no composite score. A 78 in Math doesn't offset a 65 in Anatomy — each section stands alone.
Most nursing programs set cutoffs between 70 and 80 per section. Competitive programs — especially those with limited seats and long waitlists — often require 80 or higher across the board. A few highly selective programs have pushed minimums to 85 on core subjects like Anatomy & Physiology and Reading Comprehension. The takeaway: knowing your target program's cutoffs before you schedule the exam isn't optional.
Don't confuse the HESI A2 with the HESI exit exam. That's a completely different instrument — taken at the end of nursing programs to predict NCLEX readiness. The A2 is the admission exam. Different purpose, different content, different stakes entirely. If someone tells you they 'failed HESI,' make sure you're talking about the same version before comparing experiences.
The HESI vs TEAS debate is something every nursing applicant runs into eventually. Both are admission exams for nursing programs, both cover overlapping content areas, and both are accepted by different schools. Which one you take depends entirely on where you're applying — confirm with your program rather than assuming one or the other. The wrong exam at the wrong school means starting over, and that's a delay worth avoiding by making one phone call first. Know before you register — it saves time and stress.
Working through real-style practice questions is the fastest way to find where you're weak before test day. Below you'll find sample questions for each of the eight HESI A2 sections — formatted the way they actually appear on the exam. Don't just skim the answers. Cover them, attempt each question first, then check your reasoning against the explanation provided.
These aren't random trivia. Every question here mirrors the cognitive level and content area the exam actually targets. Math questions lean heavily on dosage calculations because that's what nursing programs care about — they need to know you can compute medication doses accurately under timed pressure. Vocabulary questions use medical context because that's what the HESI A2 actually tests, not general SAT-style vocabulary lists. Anatomy questions require system-level understanding, not just term recognition from a glossary.
One thing most first-time test-takers don't realize: the HESI A2 isn't particularly tricky in question format. It won't confuse you with elaborate clinical scenarios or layered double-negatives. What makes it hard is the breadth — eight subjects across science, language arts, and mathematics, tested at a level that assumes you retained your high school and early college coursework. Knowledge gaps surface fast under timed conditions.
The format is multiple choice throughout. No short answer, no written responses, no calculations shown on paper for grading. Every answer is selected from four options. That means process of elimination is a legitimate strategy — especially on Vocabulary and Reading sections when you're genuinely unsure. For Math and Science, eliminating clearly wrong answers improves your odds significantly on questions where you're uncertain between two remaining options.
If you want a structured HESI practice test experience beyond these sample questions, use the section-specific tests linked throughout this guide. Each is formatted to match the real exam's question difficulty and time constraints.
Q1: A patient needs 250 mg of medication. The available concentration is 125 mg/5 mL. How many mL should the nurse administer?
A: 10 mL. Set up the ratio: (250 mg ÷ 125 mg) × 5 mL = 10 mL.
Q2: What is 35% of 240?
A: 84. Multiply 240 × 0.35 = 84.
Q3: A patient weighs 176 lbs. Convert to kilograms, rounded to the nearest tenth.
A: 80.0 kg. Divide 176 by 2.2 = 80.0 kg.
Q4: Order: 0.5 g of amoxicillin. Available: 250 mg capsules. How many capsules?
A: 2 capsules. Convert 0.5 g = 500 mg. Then 500 ÷ 250 = 2.
Q5: A nurse must infuse 1,000 mL over 8 hours. What is the hourly rate?
A: 125 mL/hour. Divide 1,000 by 8 = 125.
Q1: A passage states: 'Despite advances in antibiotic therapy, bacterial resistance remains a growing public health concern.' What is the main idea?
A: Bacterial resistance continues to be a serious problem even with improved antibiotics — the advances haven't eliminated the threat.
Q2: An author describes symptoms of a condition before naming it. This organizational pattern is best described as:
A: Cause and effect — the symptoms are presented as effects; the named condition is the underlying cause.
Q3: The word 'refractory' in a medical context most likely means:
A: Not responding to treatment. Clinical context clues typically make this derivable even without prior exposure to the word.
Q4: A passage author who presents only one side of a debate is demonstrating:
A: Bias. The HESI tests whether you can identify authorial perspective and recognize one-sided argumentation.
Q1: 'The patient exhibited dyspnea after minimal exertion.' What does dyspnea mean?
A: Difficulty breathing.
Q2: 'The physician noted edema in the patient's lower extremities.' Edema means:
A: Swelling caused by excess fluid accumulation in tissues.
Q3: 'The nurse administered an analgesic.' An analgesic is:
A: A pain-relieving medication.
Q4: 'Post-operative nausea is a common sequela.' Sequela means:
A: A condition that follows as a result of a prior disease or injury.
Q5: 'The wound was described as purulent.' Purulent most nearly means:
A: Containing or discharging pus — a sign of active infection.
Q1: Which organelle is responsible for cellular respiration in eukaryotic cells?
A: Mitochondria. They produce ATP through oxidative phosphorylation using the electron transport chain.
Q2: DNA replication occurs during which phase of the cell cycle?
A: S phase (synthesis phase) of interphase — before the cell enters mitosis or meiosis.
Q3: Which type of bond holds base pairs together in the DNA double helix?
A: Hydrogen bonds. Adenine pairs with thymine via 2 bonds; guanine pairs with cytosine via 3 bonds.
Q4: Osmosis is the movement of water across a semipermeable membrane from an area of:
A: Lower solute concentration to higher solute concentration — from hypotonic to hypertonic environment.
Q1: Which structure controls the heart's electrical impulse initiation?
A: The sinoatrial (SA) node — the heart's natural pacemaker, located in the right atrium wall.
Q2: Blood pressure regulation through fluid volume is primarily controlled by:
A: The renin-angiotensin-aldosterone system (RAAS), acting on the kidneys to retain sodium and water.
Q3: Which anatomical plane divides the body into left and right halves?
A: The midsagittal (median) plane.
Q4: Neurons transmit signals across the synapse using:
A: Neurotransmitters — chemical messengers released from the presynaptic axon terminal into the synaptic cleft.
Q1: Choose the correctly punctuated sentence:
A) The patient, who had surgery yesterday feels much better.
B) The patient, who had surgery yesterday, feels much better.
A: B — non-restrictive clauses require commas on both sides to set them off from the main clause.
Q2: Identify the subject: 'Between the two hospitals, neither has updated its equipment.'
A: 'Neither' — the subject is the indefinite pronoun, not the prepositional phrase that opens the sentence.
Q3: Which sentence uses 'affect' correctly?
A: 'The medication will affect her blood pressure.' Affect is the verb; effect is typically the noun.
Q4: Which sentence is grammatically correct?
A) Each of the nurses were assigned a patient.
B) Each of the nurses was assigned a patient.
A: B — 'each' is singular and requires a singular verb regardless of the prepositional phrase following it.
Scores run on a 0–100 scale, where 100 is a perfect performance. Each section generates its own independent score — there's no weighted average, no composite, no way to let a strong Math performance offset a weak Anatomy score. Every section you're required to take must meet the cutoff on its own. That's both the fairness and the difficulty of the HESI A2 model.
Most programs post their cutoffs publicly in admissions requirements. Look them up before you register — not after you test and discover you missed by three points. A 75 gets you through some doors. Others won't move without an 80. A few competitive programs, particularly those with long waitlists and limited clinical slots, require 80 on every required section and won't consider applicants who fall short on even one subject.
Retaking the exam isn't simple or fast. Most schools enforce a mandatory 60-day waiting period between attempts on any section. Some limit you to two or three total lifetime attempts per section. If you bomb the Math section and need to retake it, you're looking at a two-month minimum wait. That can push your application back an entire semester, or knock you out of a cohort start date you were targeting.
Score reports generate immediately after you complete the exam on the EVOLVE platform. You'll see it on-screen before you leave the testing center — print or screenshot it immediately. Some programs require submission through their application portal; others accept a self-reported score with the official report attached as a PDF. Scores remain accessible in your EVOLVE account, so you can retrieve them later if needed.
Want to know how to pass the HESI exam on your first attempt? The strategy comes down to consistent section-by-section practice starting eight or more weeks before your test date. Don't try to cram it. The content breadth across eight subjects makes last-minute cramming nearly impossible to execute effectively — you'll cover too little of what matters.
Chemistry prep requires a different approach than most students expect. You don't need advanced chemistry knowledge — the HESI A2 Chemistry section tests foundational concepts: periodic table trends (electronegativity, atomic radius, ionization energy), types of chemical bonds (ionic, covalent, hydrogen), acid-base chemistry, and basic solution calculations like molarity. If it's been more than a year since you took chemistry, spend dedicated time reviewing the periodic table before drilling practice questions. Patterns become obvious once you see the table as a tool rather than a memorization challenge.
Physics is the section that surprises applicants the most — not because it's harder than the others, but because many nursing program applicants haven't thought about physics since high school. The HESI A2 Physics section covers mechanics (motion, velocity, acceleration, Newton's laws), energy and work, waves, electricity basics, and optics. If your program requires Physics, treat it like a separate mini-exam within your prep schedule. Allocate one dedicated week to physics fundamentals rather than letting it compete with science section time.
Eight weeks out is the right entry point for most students. That's not a magic number — it's practical. Eight weeks gives you enough time to cover all required sections methodically without burning out or losing retention on early material by test day. If your program requires all eight sections, consider ten weeks instead and add an extra week to the science phase.
Week one should be purely diagnostic. Take one full-length practice section per required subject and score yourself honestly. The gaps you identify in week one are what you prioritize in weeks two through five. Students consistently make one mistake here: they over-study what they already know because it feels productive. That's the wrong instinct. Put your hours where scores are lowest — that's where the exam points live.
For the science sections — Biology, Chemistry, Anatomy & Physiology — a concept-first approach beats rote memorization every time. If you understand why the SA node fires before the AV node, you won't forget the cardiac conduction sequence under exam pressure. If you've memorized a list without understanding the underlying mechanism, you'll blank when the question is phrased differently than you practiced. The HESI A2 tests understanding more than recall in its science sections.
Math prep is where dosage calculation drills pay off most. The Math section isn't testing algebra or calculus — it's testing whether you can compute medication doses accurately and quickly. Master the ratio-proportion method until it's reflexive. Time yourself. With 55 questions in 50 minutes, you have under a minute per question. You can't afford to redo a setup from scratch mid-section.
Grammar prep is more systematic than people expect. A handful of rules account for most HESI Grammar questions: comma usage with non-restrictive clauses, subject-verb agreement with indefinite pronouns (each, either, neither require singular verbs), and the affect/effect distinction. Those three rule families alone cover a significant chunk of what you'll see. Use the HESI Grammar Practice Test to identify which specific rules trip you up.
Reading Comprehension prep is often where students feel confident and under-prepare. Don't. The HESI Reading section trips up even strong readers because it requires you to base every answer strictly on the passage — not on outside knowledge you happen to have about the topic.
A question might ask about the main idea of a passage on wound care, and the correct answer must come from the text itself, not from what you know about wound care from a nursing textbook. Practicing this discipline — reading the passage before looking at questions, then returning to the text to justify every answer — is the specific skill the section tests.
Vocabulary prep benefits from a layered approach. Start with roots, prefixes, and suffixes common in medical terminology: brady- (slow), tachy- (fast), -itis (inflammation), -ectomy (surgical removal), -ology (study of), -algia (pain). Knowing these building blocks lets you derive the meaning of unfamiliar clinical terms from their structure alone, which is exactly how context-clue questions on the HESI A2 work. Flashcards for specific terms help, but root knowledge scales better across the 55-question section.
Show up early. The EVOLVE system requires login verification, and technical hiccups at testing centers aren't rare. Being there 15–20 minutes before your start time isn't overcautious — it's standard practice. Arriving flustered and behind schedule affects your first-section performance in ways that are hard to recover from mid-exam.
You'll be given scratch paper and access to a basic on-screen calculator for the Math section. The calculator handles arithmetic, but it won't set up dosage calculation ratios for you — that's the cognitive work the section is testing. You can't bring your own calculator, any reference materials, or notes of any kind into the testing room.
Between sections you'll have a short break opportunity. Use it. Stand up, stretch, drink water, take a few slow breaths. The cognitive load of four or more consecutive sections compounds, and students who power through without breaks consistently report lower scores on later sections compared to their timed practice results. That short break costs almost no time and buys real focus recovery.
One thing that surprises first-timers: the exam gives no real-time feedback on individual answers. You won't see 'Correct' after each question. You select an answer, move on, and don't know your score until the final report generates at the end. That's intentional design. The danger is letting uncertainty about one question spiral into distraction for the next three. Decide and move forward — don't dwell on what you can't change.
After finishing, your score report generates on-screen immediately through the EVOLVE portal. Export or print it before you leave the testing site. Some schools require direct portal submission; others ask for self-reporting during application with the PDF attached. Either way, don't leave without your documentation. Scores stay in your EVOLVE account for later retrieval, but having it on hand saves time.
A note on time management during the exam itself: most test-takers complete Math and science sections with time to spare because those questions tend to be shorter. Reading Comprehension is where people run short on time — passages are longer, and re-reading takes more minutes than most students budget. Practice timed reading passages in the weeks before your exam specifically to build reading pace. If you find yourself burning more than 90 seconds per Reading question, that's the target to fix in your prep phase.
If you finish a section with time remaining, review flagged questions but resist the urge to second-guess answers that felt confident. Research on standardized testing consistently shows that first-instinct answers are correct more often than changes made during review, unless you have a concrete reason to change (like spotting a math error). Change answers only when you find a definitive reason — not because you're anxious about the question.