HESI A2 vs. TEAS 7: Which Nursing Entrance Exam Should You Take?

Thousands of pre-nursing students each year discover, usually too late, that their target programs accept two different entrance exams and that nobody told them which one plays to their strengths. The HESI A2 and the ATI TEAS 7 overlap heavily, but they are not interchangeable, and the difference can be worth several percentage points on an admissions score.

The short version

Take the TEAS 7 if your reading comprehension is strong, your chemistry is weak, and you want a single standardized score most programs recognize instantly.

Take the HESI A2 if you are comfortable with chemistry and anatomy detail, you prefer shorter individually-timed sections, and your program only requires a subset of HESI modules.

Now the detail that justifies that recommendation.

Content compared

Where they agree

Both exams test reading comprehension, mathematics, grammar and vocabulary, biology and anatomy and physiology. Both are computer-based, both are proctored, and both are used almost exclusively for nursing and allied-health admissions.

Where they diverge

The TEAS bundles all science into one 50-question section dominated by anatomy and physiology. The HESI A2 splits science into separate modules — Anatomy and Physiology, Biology, Chemistry, and sometimes Physics — and your program chooses which modules you must sit.

That modularity is the single biggest practical difference. A program requiring only Math, Reading, Vocabulary, Grammar and A&P gives HESI candidates a much narrower study surface than the TEAS demands. A program requiring Chemistry and Physics gives them a much wider one. Check your program's required module list before you decide anything else.

The HESI also includes non-academic components — a Personality Profile and a Learning Style assessment. These are not scored for admission. They exist to help advisors place students in support programs. Do not spend a minute preparing for them.

Math differences

TEAS math leans on algebra, proportions, percentages and data interpretation. HESI math leans harder on dosage-style calculation, ratios, military time, roman numerals and household-to-metric conversions. HESI math is closer to what you will do in a clinical setting; TEAS math is closer to a general academic placement test.

Reading differences

TEAS reading passages are longer and include multi-source and graphic-integration items. HESI reading passages are shorter and more literal, with a heavier emphasis on identifying the main idea and drawing straightforward inferences. Strong readers gain more relative advantage on the TEAS.

Scoring compared

TEAS reports a total adjusted individual score as a single percentage plus sub-scores. HESI reports a separate percentage per module and often a cumulative average. Because HESI scores are per-module, a single weak module can be visibly isolated in your file — which cuts both ways. A 94% in A&P next to a 71% in Chemistry tells a committee something a blended TEAS score would hide.

Typical expectations:

• HESI A2 minimum for most programs: 75% per module.
• Competitive HESI A2 average: 85% and above.
• TEAS minimum for most ADN programs: 58% to 65%.
• Competitive TEAS: 75% and above.

Never compare the two numbers directly. A 78% TEAS and a 78% HESI represent very different percentile positions.

Cost, scheduling and retakes

Both exams cost roughly the same range once proctoring fees are included, though HESI pricing varies more because schools set module bundles. Both offer remote proctoring at some institutions. Retake policy is set by the nursing program, not the test publisher — 30 to 60 day waiting periods and a two or three attempt cap per cycle are the norm for both.

Which is harder?

Ask ten nursing students and you will get ten answers, which tells you the honest response: it depends on your background.

• Students who took chemistry recently generally find the HESI easier.
• Students with strong verbal skills and weak science recall generally find the TEAS easier.
• Students who struggle with sustained attention often prefer the HESI, because its individually timed shorter modules provide natural breakpoints where the TEAS runs 209 continuous minutes.

If your program accepts both and you genuinely cannot decide, take a free or low-cost diagnostic for each. Two hours of testing beats two months of guessing.

A shared study strategy that works for either exam

Whichever exam you choose, the highest-yield preparation is identical in structure:

• Diagnose first, then study only the gaps the diagnostic exposed.
• Study anatomy and physiology by system, explaining each aloud without notes.
• Drill proportion and conversion math daily in short sessions rather than weekly in long ones.
• Practice grammar as rules, not as feel — agreement, comma use, capitalization, and commonly confused word pairs.
• Simulate full-length timed conditions at least twice before test day.

For nursing-specific question banks with rationales covering both exam blueprints, ExamStealth Nurse Hub maintains separate TEAS and HESI tracks, and their study labs let you rehearse under real timing constraints. Candidates who prefer live instruction can compare tutor options through ExamSharks and its nursing desk.

After you pass

Both exams are one checkpoint in a long sequence. Entrance exam, prerequisite GPA, ATI or HESI semester exams, an exit exam, and finally the NCLEX. Students who build genuine study systems now — retrieval practice, error logs, timed simulation — carry those systems through every later checkpoint. Students who cram their way past the entrance exam usually meet the same wall two semesters later.

Choose the exam that fits your academic profile, verify your program's exact requirements in writing, and give yourself six focused weeks. That is the entire strategy.