HESI A2 vs TEAS 7

The HESI A2 and TEAS 7 are the two most common nursing school entrance exams in the United States. They test overlapping content — reading, math, English, and the sciences — but differ sharply in structure, depth, and scoring. This guide is a full side-by-side so you can confirm which exam your program requires, understand how each one plays to different academic profiles, and start preparation with a clear plan.

HESI A2 vs TEAS 7 side-by-side

FeatureHESI A2TEAS 7
DeveloperElsevierATI (Assessment Technologies Institute)
Full nameHealth Education Systems Inc. Admission AssessmentTest of Essential Academic Skills, Version 7
QuestionsVaries by sections tested (each section 25–55 questions; total ~300)170 total (150 scored, 20 unscored)
Time limit~5.25 hours if all sections scored; typically 3.5–4.5 hours209 minutes (3 hr 29 min)
SectionsUp to 8 scored: Math, Reading, Grammar, Vocabulary, Biology, Chemistry, A&P, PhysicsScience, Reading, Math, English (all four required)
Science depthSeparate Biology, Chemistry, and A&P sections — more depth per topicCombined Science section covering A&P, Biology, Chemistry, and reasoning
ScoringPer-section score (0–100%). No single composite.Composite % (0–100) plus section scores. Five preparedness levels.
Typical passing score75–80% per scored section; 85%+ for competitive programsProgram-dependent composite; most require 65–75, competitive programs 80+
Who uses itUniversity-based nursing programs, especially in Texas, Florida, and the SoutheastMost nationwide ADN and BSN nursing programs
StudyBuddy coverage4,255 HESI-specific questions, 34 video lectures, 3 practice exams850+ questions, 133 videos, 5 practice exams

Who should take the HESI

The HESI is the right exam if your target nursing program requires it — and because most programs accept only one of the two, that is the dominant factor. If your program accepts either, weigh the HESI if:

  • You have a strong science background. The HESI\'s separate Biology, Chemistry, and A&P sections reward depth. Students coming off recent science coursework often score higher on the HESI than on the broader TEAS Science section.
  • You prefer per-section scoring. The HESI reports each section independently. A strong section will not be dragged down by a weak one on a composite — useful if your academic profile has clear strengths.
  • You are applying to Texas, Florida, or Southeast programs. The HESI is common in these regions, particularly Houston, DFW, and university-based programs nationwide.

Consider the TEAS instead if your science background is weaker, if you want a shorter exam (3.5 hours vs. 5+), or if you are applying to programs predominantly in states and institutions that use the TEAS.

Content overlap vs. content difference

Where they overlap: Both exams test arithmetic, proportions, measurement conversions, basic algebra, reading comprehension, grammar, cellular biology, and core A&P systems (cardiovascular, respiratory, renal, nervous). A student well-prepared in these areas will perform competently on either exam.

Where they differ: The HESI tests Chemistry and Physics as separate sections — neither appears as a standalone section on the TEAS. The TEAS has a dedicated Scientific Reasoning component (experimental design, interpreting graphs, identifying variables) that the HESI does not test explicitly. The TEAS uses a single Science section that covers Biology, Chemistry, A&P, and scientific reasoning together; the HESI splits these apart.

What this means for your preparation: Study for the exam your program actually requires. Cross-prep materials help with overlap, but each exam rewards specific question formats and section pacing strategies that generic "nursing entrance exam" prep misses.

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HESI vs TEAS frequently asked questions

Is the HESI A2 harder than the TEAS 7?
Neither is universally harder. The HESI has more science depth — separate Biology, Chemistry, and Anatomy & Physiology sections — while the TEAS combines science into one section. Students with strong science backgrounds often prefer the HESI because they can showcase specific strengths. Students with broader academic skills but weaker science typically perform better on the TEAS. The HESI is longer in total seated time; the TEAS has tighter per-question pacing.
If my nursing program requires the HESI, should I also study TEAS content?
No. Focus exclusively on HESI-specific preparation. Despite significant content overlap, the two exams differ in question format, section pacing, and depth expectations. Studying TEAS materials for a HESI exam dilutes your preparation time without improving your HESI score. If you are applying to multiple programs and some require the other exam, prepare for both separately — not simultaneously.
Why does the HESI have more sections than the TEAS?
The HESI was designed to let nursing programs assemble a customized exam from 8 scored sections plus optional assessments. Each program selects the sections most relevant to its curriculum. The TEAS uses a fixed four-section structure that all test-takers complete identically. The HESI's flexibility is why you see wide variation across schools — some require only 5 sections, others require all 8 including Physics.
Can I take both the HESI and the TEAS?
Yes. Some applicants take both to maximize admissions options when applying to programs that accept different exams. This is uncommon — most students focus on the specific exam required by their target programs. Taking both doubles your preparation time and exam fees. Only consider this if you have applied or are applying to programs with different requirements.
Which exam has more practice material available?
Both have substantial practice resources. The TEAS has more third-party study guides, practice tests, and video courses due to its wider nationwide adoption. The HESI has fewer dedicated prep products but strong official materials from Elsevier. StudyBuddy offers dedicated courses for both — 4,255 HESI-specific questions and 850+ TEAS questions — each with AI-powered weak-area targeting and doctoral-faculty video lectures.