The HESI A2 covers 9 subjects and one bad section score can keep you out of the program you’ve been working toward. Keslaly gives you the focused, exam-realistic practice you need to walk in confident and score high the first time.
"Scored 92% on my first attempt!"
— Sarah M., Nursing Student
The HESI A2 tests 9 subjects — from Anatomy & Physiology to Math to Reading Comprehension. Keslaly covers every one with tools designed to help you score 85%+ per section.
Every question and guide is built around real HESI A2 exam patterns — no filler, no wasted study time.
600+ practice questions that mirror the real HESI A2 in difficulty, format, and content — so there are no surprises on test day.
See exactly which subjects and topics you're strong in — and which need more work — with detailed score breakdowns.
Every question includes a step-by-step visual explanation so you learn from mistakes and truly understand the material.
"I was so nervous about the science sections, but Keslaly's practice questions were almost identical to what I saw on the real exam. I scored 92% on my first attempt. Thank you Keslaly for helping me get into my dream nursing program!"
The science sections alone — Anatomy & Physiology, Biology, and Chemistry — stop more students than any other part of the HESI A2. Add in the pressure of needing an 80%+ to get into your program, and it’s easy to feel overwhelmed before you even open a textbook.
Keslaly is built to cut through that. Every question mirrors what you’ll actually see on the exam, every explanation teaches the concept behind the answer, and the score tracker shows you exactly where to focus — so you stop guessing and start improving.
Keslaly combines everything into one platform — so you can focus on studying, not searching for resources.
"Scored 92% on my first attempt!"
— Sarah M., Nursing StudentReading, Vocabulary, Grammar, Math, Biology, Chemistry, A&P, Physics, and Learning Style — every subject the HESI A2 tests.
Every question includes a detailed, visual explanation that teaches the concept — not just tells you the answer.
Focused guides that break down each HESI A2 subject into clear, digestible sections you can actually retain.
Create custom tests by subject or difficulty to target your weakest areas — especially the sciences.
Track your progress with detailed score reports and per-subject breakdowns so you know when you’re ready.
See how nursing students passed the HESI A2 with 85%+ scores using Keslaly — many on their first attempt.
Trusted by 7,000+ nursing students. Affordable one-time pricing. No subscriptions or no hidden fees. Choose the plan that fits your timeline.
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The HESI A2 (Health Education Systems, Inc. Admission Assessment) tests 9 core academic areas. Most nursing programs require all or a subset of these sections, with minimum scores of 75–85% per subject. Keslaly covers every one with exam-style practice questions, study guides, and detailed explanations.
Analyze passages, identify main ideas, draw inferences, and answer critical thinking questions.
Master medical and academic terminology with context-based questions and detailed definitions.
Sentence structure, punctuation, parts of speech, and common writing errors tested on the real exam.
Fractions, decimals, ratios, conversions, word problems, and data interpretation — step by step.
Cell biology, genetics, photosynthesis, metabolism, and biological processes essential for nursing.
The periodic table, chemical reactions, biochemistry, acids & bases, and atomic structure.
Organ systems, body functions, diseases, and physiological processes you need to know.
Newton's laws, energy, rotation, waves, and fundamental physics concepts required by select programs.
Understand your personal learning preferences to study more effectively and retain more information.
Everything you need to know before you start studying
Study Smart – Use high-quality, exam-style questions.
Time Yourself – Take timed practice tests to improve speed.
Understand, Don't Memorize – Focus on concept mastery instead of rote learning.
Track Progress – Identify weak areas and improve strategically.
Keslaly Tip: Keslaly gives you all four — exam-style questions, timed tests, detailed explanations, and progress tracking.
The HESI A2 exam tests 9 subject areas that assess the academic skills needed for nursing programs:
1. Reading Comprehension — Analyze passages and answer critical thinking questions.
2. Vocabulary & General Knowledge — Medical and academic terminology.
3. Grammar — Sentence structure, punctuation, and writing rules.
4. Mathematics — Fractions, ratios, conversions, and word problems.
5. Biology — Cell biology, genetics, and biological processes.
6. Chemistry — Periodic table, chemical reactions, and biochemistry.
7. Anatomy & Physiology — Organ systems, diseases, and body functions.
8. Physics — Newton's laws, energy, waves, and fundamental concepts.
9. Learning Style Assessment — Identifies your personal learning preferences.
Keslaly Tip: Keslaly covers all 9 HESI A2 subjects with exam-style questions and detailed explanations!
The HESI A2 is challenging because it tests a broad range of academic skills, but with proper preparation, you can pass with confidence. The difficulty level depends on your study habits and familiarity with the subjects.
Keslaly Tip: We provide exam-style questions and step-by-step explanations to make studying easier!
Each nursing school sets its own passing score, but most require at least 75%-85% per section. Some competitive programs expect 90%+ in key subjects like math and science.
Keslaly Tip: With our performance tracking, you can measure progress and aim for top scores!
The HESI A2 and NCLEX serve different purposes: HESI A2: An entrance exam testing academic knowledge. NCLEX: A licensure exam testing clinical decision-making. It is therefore not reasonable to compare the two exams in terms of difficulty.
Keslaly Tip: Ace the HESI A2 with us and set yourself up for NCLEX success later!
The NCLEX-RN is widely considered the most difficult nursing exam, as it determines licensure and requires critical thinking and application of nursing knowledge. However, the HESI A2 is challenging because it determines your entry into nursing school.
Keslaly Tip: We help you conquer every step of your nursing journey—HESI now, NCLEX later!
If you fail the HESI A2, most schools allow retakes after a waiting period, usually 30 to 60 days. Some schools limit the number of attempts per year.
Keslaly Tip: Our targeted study plans help you pass on your first try—no need for retakes!
An acceptable score varies by program, but most schools require at least 75%-80% per section. Top-tier programs prefer 85% or higher.
Keslaly Tip: With our 95%+ accuracy-prediction questions, you can aim for the highest scores!
The HESI A2 usually has 326 multiple-choice questions, broken down into several subject areas. Some schools may require only specific sections.
Keslaly Tip: Our practice tests match the structure and difficulty of the real exam!
Yes! But you cannot bring your own. The exam provides a built-in calculator in the testing software.
Keslaly Tip: Practice using the on-screen calculator in our timed mock exams to avoid surprises!
Expect:
Basic Operations (Addition, Subtraction, Multiplication, Division)
Fractions, Decimals & Percentages
Ratios & Proportions
Algebra & Word Problems
Conversions (Metric & Household Units)
Keslaly Tip: Our math explanations are step-by-step, so you never feel lost!
Most students receive their HESI A2 results immediately after the exam. However, some schools may take a few days to process scores.
Keslaly Tip: With our real-exam simulations, you’ll know exactly how you’ll perform before test day!
Most students need 4–8 weeks of consistent study to feel fully prepared. The exact timeline depends on your comfort level with the science subjects (A&P, Biology, Chemistry) and Math, which are typically the most challenging sections.
If you’re retaking the exam, focus your study time on the specific sections where you scored lowest. If you’re starting fresh, begin with the subjects you find most difficult and work outward.
Keslaly Tip: Our 15-day, 30-day, and 60-day plans are designed to match your timeline — whether you’re cramming or starting early.
Start with the subjects that carry the most weight or that you find most challenging. For most students, that means:
1. Anatomy & Physiology — Often the hardest section and heavily tested.
2. Mathematics — Conversions, ratios, and word problems trip up many students.
3. Biology & Chemistry — Science-heavy and concept-dense.
4. Reading & Vocabulary — Easier to improve quickly with practice.
5. Grammar — Typically the fastest section to review.
Keslaly Tip: Take a practice test first to identify your weakest subjects, then use Keslaly’s score tracking to prioritize your study plan.
HESI A2 score validity varies by school, but most nursing programs accept scores for 1–2 years from the test date. Some programs may have stricter or more lenient policies, so always check with your specific school’s admissions office.
If your scores expire before you apply, you’ll need to retake the exam.
Keslaly Tip: Time your HESI prep so your scores are fresh when applications open — and use Keslaly to score high the first time so you don’t have to retake.
Follow @keslalyofficial for daily study tips, score-boosting strategies, and nursing student motivation.
