HESI vs. TEAS: Which Nursing Exam Is Harder?

You’ve narrowed down your nursing schools, checked prerequisites, and now you’re staring at two acronyms that decide your future: HESI A2 and ATI TEAS. One school wants one, the other wants the other, and every forum post you read gives you a different answer about which is harder. The truth is that most people compare these exams the wrong way. They look at overall pass rates or ask strangers on Reddit, but the real answer depends on how your brain works, not just how much you studied.

This guide acts as a diagnostic tool. Instead of giving you a generic verdict, we’ll break down the structural differences, the question styles, and the scoring quirks so you can identify which exam plays to your strengths. You’ll leave with a clear picture of what to expect, how schools actually interpret your score, and a strategy for the specific test you need to take.

If you’re prepping for the HESI, a dedicated resource like the Check price on Amazon helps you target your weak spots with practice tests and video lessons. It’s not a magic bullet, but it gives you a structured way to drill the exact material on the exam.

Why This Comparison Matters More Than “Which is Harder”

Asking which exam is harder without context is like asking whether running a marathon is harder than swimming one. If you have bad knees, the swim is easier. If you can’t hold your breath, the run wins. The same logic applies here. The HESI and TEAS are both nursing entrance exams, but they measure different cognitive muscles.

Most pre-nursing students make one critical mistake: they pick a side based on rumors and then fail because they didn’t match their prep to the exam’s actual demands. A student who struggles with reading comprehension will find the TEAS brutal, while a student who freezes on applied math problems will dread the HESI. You need to know your own academic profile before you can answer the difficulty question.

This matters for another reason. Your score isn’t just about passing. It determines whether you get into a competitive BSN program or have to settle for a waitlist. A 75% on the HESI might be a lock for one school and a rejection at another. Understanding how your target school weighs your score changes how hard you need to study.

HESI A2 vs. ATI TEAS: The Core Structural Differences

Both exams cover similar ground, but the architecture is different. The HESI A2 (Health Education Systems, Inc. Admission Assessment) is a modular test. You can take specific sections depending on what your school requires. The ATI TEAS (Test of Essential Academic Skills) is a fixed, four-section exam: Reading, Math, Science, and English & Language Usage.

Here’s the first major difference: the HESI lets you focus. If your school only requires the Math and Vocabulary sections, you don’t have to touch Anatomy. The TEAS forces you to take everything, including a science section that’s heavy on human anatomy and physiology. That alone shifts the difficulty curve for many students.

Content Breakdown: What Each Exam Actually Tests

The TEAS 7 (the current version) has 170 questions total, but only 150 are scored. You get 209 minutes. The breakdown is roughly 39 Reading questions, 34 Math, 50 Science, and 37 English. The science section is the big one—it’s nearly a third of the exam and covers biology, chemistry, and A&P. You need to know the steps of mitosis, the function of the nephron, and basic chemical bonds.

The HESI A2 has a similar set of sections, but the content depth varies. The Science section includes A&P, Biology, and Chemistry, but it leans heavily into A&P. The Math section covers basic algebra, ratios, and dosages. The Reading and Vocabulary sections are straightforward. The HESI also offers a Grammar section, which the TEAS includes in its English section. The key difference: the HESI lets you skip the subjects you don’t need, which is a huge advantage if your school only wants two or three sections.

Question Format and Critical Thinking Load

This is where the “harder” debate gets real. The TEAS asks mostly recall questions. You read a passage, you answer a question about the main idea. You see a math problem, you solve it directly. It’s a test of how well you remember facts and apply basic formulas. The HESI, especially the newer versions, includes application-based questions. You get a clinical scenario—a patient with low potassium, for example—and you have to figure out which lab value indicates the problem.

That difference changes how you study. For the TEAS, flashcards and memorization go a long way. For the HESI, you need to practice critical thinking. You have to understand why a concept matters, not just what it is. A student who memorized the periodic table might ace the TEAS science section but struggle with the HESI’s scenario-based questions about chemical reactions in the body.

The Real Answer: Which Exam Is Harder for YOU?

Here’s the honest breakdown, split by your personal strengths. This is the diagnostic part. Read both sections and see which one makes you nod your head.

You’ll Find HESI Harder If…

You struggle with inference and multi-step reasoning. The HESI’s reading section asks you to draw conclusions from passages, not just find the main idea. The math section includes word problems that require you to set up equations from clinical scenarios. If you’re the kind of student who needs to see the formula before you plug in numbers, the HESI will feel like it’s working against you.

You also might find the HESI harder if you’re weak in grammar. The HESI has a dedicated Grammar section that tests punctuation, sentence structure, and parts of speech. Many students haven’t touched this material since high school. The TEAS folds grammar into a broader English section, but it’s less granular. You won’t be asked to identify a dangling modifier on the TEAS as often as you will on the HESI.

You’ll Find TEAS Harder If…

You’re not a strong science student. The TEAS science section is unforgiving. It covers a broad range of topics, including chemistry and biology, and it’s timed tightly. You have about 63 minutes for 50 questions, which works out to roughly 75 seconds per question. That’s not a lot of time to think through a difficult A&P question about the cardiac cycle.

The TEAS also punishes you if you’re a slow reader. The Reading section has 39 questions with long passages, and you get 55 minutes. If you have to re-read paragraphs, you’ll run out of time. The HESI reading section is shorter and less dense. Students who are naturally fast readers tend to prefer the TEAS, while those who need time to process text find the HESI more forgiving.

One more thing: the TEAS doesn’t let you skip around easily. You have to move through the test linearly. The HESI allows you to go back and change answers within a section. That’s a small thing, but for test-takers who like to flag questions and return, it’s a big deal.

Scoring, Percentiles, and What Schools Really Look For

Both exams use a scaled score, but they report it differently. The HESI gives you a score out of 100% for each section. The TEAS gives you an adjusted individual score and a national percentile rank. That percentile is what schools care about most.

Here’s the trap. A 78% on the HESI might sound worse than an 80% on the TEAS, but the percentile tells a different story. A 78% on the HESI could put you in the 85th percentile if the test was hard. An 80% on the TEAS might only be the 60th percentile if the curve is generous. You need to look at the score report, not just the percentage.

Schools also set their own cutoffs. An ADN (Associate Degree in Nursing) program might accept a 70% on the HESI. A competitive BSN program at a university might require an 85% or higher on the TEAS, plus a strong GPA. Some schools use the HESI’s composite score, which is an average of your section scores. Others look at your highest section and your lowest section to see if you have any glaring weaknesses.

One practical tip: contact the nursing advisor at your target school and ask for the average admitted score. Most advisors will tell you directly. That number is your real target, not the generic “passing” threshold.

Cost, Retake Policies, and Scheduling: The Logistics

The financial side is where a lot of students get caught off guard. The ATI TEAS costs around $80 to $120, depending on whether you take it at a PSI testing center or at your school. The HESI A2 typically costs $50 to $100 per attempt, but some schools bundle the fee into your application. Both exams charge a rescheduling fee if you need to move your date, usually $30 to $50.

Retake policies vary wildly by institution. Some schools let you retake the TEAS every 30 days. Others make you wait a full semester. The HESI is often more flexible, but many nursing programs limit you to two or three attempts total. You need to check the policy before you take the exam, not after you fail. Failing one attempt and having to wait six months could derail your entire application timeline.

Scheduling is another headache. The TEAS is offered at national testing centers like PSI, so you can usually find a slot within a week. The HESI is often administered by the school itself, which means you’re limited to their testing windows. If your school only offers the HESI twice a semester, you have to plan your prep around those dates.

There’s also the question of which exam is more widely accepted. Most schools accept one or the other, not both. A few programs accept either, which gives you the luxury of choosing your battle. If you have that choice, use the diagnostic above. Pick the exam that matches your strengths, not the one your friend said was “easier.”

How to Prepare Strategically for Your Required Exam

Amateurs approach test prep by reading a textbook cover to cover and hoping it sticks. People who do this for a living—tutors and high-scoring students—start with a practice test. Take a diagnostic exam on day one. See where you score. Then spend 80% of your study time on your lowest sections and 20% maintaining your strengths.

One professional habit worth adopting today: keep a wrong-answer journal. Every time you miss a question, write down why you missed it. Was it a content gap, a misread question, or a timing issue? After a week, you’ll see a pattern. Most students find they lose points not because they don’t know the material, but because they misread the question stem. Fixing that habit alone can raise your score by five to ten points.

For the TEAS, focus on speed and recall. Use flashcards for A&P terms and chemistry formulas. For the HESI, focus on application. Practice with scenario-based questions that force you to think clinically. The Check price on Amazon mentioned earlier includes those application-style questions, which is why it’s useful for the HESI specifically. It also has an AI tutor chat, which helps when you’re stuck on a concept at 11 PM and don’t have a study buddy.

Don’t neglect the reading and vocabulary sections. They’re worth a lot of points and are often the easiest to improve. For the HESI, learn common medical prefixes and suffixes. For the TEAS, practice reading dense passages quickly. This is also a good time to check your school’s specific requirements—some programs require a minimum score in every section, not just a composite. You can’t afford to bomb the English section and make it up in math.

If you fail one exam, don’t panic. Ask your target school if they accept the other. Some programs do, and you can pivot your application timeline. You’ll need to prep for the new exam, but the content overlap is significant. A student who failed the TEAS science section often does well on the HESI because the HESI’s A&P questions are more focused and less broad. The reverse is also true—a student who struggled with HESI’s critical thinking questions might find the TEAS’s direct recall style easier.

Frequently Asked Questions

Can I choose between the HESI and TEAS?

Only if your target school accepts both. Many schools require a specific exam, so your choice is made for you. A small number of programs let you submit either score. If you have that option, take the one that matches your academic strengths. If you’re a strong science student, the TEAS is often a better bet. If you’re a strong reader and thinker, the HESI might be more forgiving.

Do nursing schools prefer one exam over the other?

No national preference exists. It comes down to institutional choice. Some schools have used the HESI for decades and have data on how it predicts NCLEX success. Others are locked into ATI’s ecosystem. You should ask the admissions office why they chose their exam—it’s a fair question, and the answer often reveals how they use the scores.

Is the TEAS science section harder than the HESI’s?

Generally, yes. The TEAS science section covers more topics and requires faster recall. The HESI science section is more A&P-heavy and includes more applied questions. If you’re strong in anatomy but weak in chemistry, the HESI is probably easier. If you’ve recently taken a general biology course and remember the details, the TEAS might not be as bad as you fear.

What happens if I fail the HESI but my school only accepts the HESI?

You’ll need to retake it, but first find out the retake policy. Some schools require a remediation course before you can retake. Others have a waiting period. Use that time to take a diagnostic test and focus only on your weakest areas. Don’t just re-read the whole book—that’s how you end up in the same spot.

How much does the HESI’s application-based question style affect scores?

It affects scores a lot if you’re not used to it. Students who have taken critical thinking courses or have clinical experience (like working as a CNA) tend to score higher. If you’re coming straight from prerequisite classes, you need to practice with scenario questions. The TEAS Plus vs. TEAS Standard comparison shows how even the same exam can have different formats, which is a good reminder to check exactly which version your school uses.

What to Do Next: Your Action Plan

• Check your school’s requirement first—don’t study for the wrong exam. This sounds obvious, but it happens every year.
• Take a full diagnostic test of your required exam before you open a study guide. Your first score is your baseline.
• Identify your weakest section (or two) and spend the first two weeks drilling only that content. Don’t touch your strengths yet.
• Start a wrong-answer journal. Write down every mistake and the reason for it. Look for patterns after 50 questions.
• For the HESI, practice with clinical scenarios. For the TEAS, drill with flashcards and timed reading passages.
• Schedule your exam early, but give yourself at least 4-6 weeks of prep time. Cramming works for a quiz, not for a nursing entrance exam.
• If you’re using a study guide, pick one that matches the exam’s format. The Smart Edition guide is a solid option for HESI prep because it includes full-length practice tests and answer explanations that teach you the reasoning, not just the answer.

The exam is a hurdle, not a reflection of your future nursing career. Once you’re in school, nobody asks what you scored on the TEAS. They ask if you can start an IV. Keep that perspective, but take the prep seriously. A few focused weeks now saves you a semester of waiting later.