Choosing an admission exam

TEAS 7 vs HESI A2

In most cases the choice is not yours. Your nursing programme decides which exam it accepts, so ask admissions before comparing anything. Where a school accepts both, pick the one whose subject list plays to your strengths, because neither is reliably harder than the other.

Last updated August 2026

Side by side

ATI TEAS 7 HESI A2
Administered by ATI Elsevier
Published blueprint Yes, full public specifications No public per-section blueprint
Structure 170 questions, 209 minutes, four timed sections Set by your programme from the subject exams offered
Subjects Reading, Mathematics, Science, English & Language Usage Maths, Reading, Vocabulary, Grammar, A&P, Biology, Chemistry, Physics
Which you sit All four sections, always Only the subjects your school selects
Science weighting Heavy, at 44 of 150 scored items Depends entirely on whether your school assigns the science exams
Scoring Overall score plus section breakdown A percentage per subject exam you sit
Pass mark None nationally; set by each programme None nationally; set by each programme

The honest drawbacks

Both exams have real weaknesses. We sell preparation for both, so here they are.

Against the TEAS

  • You sit all four sections whether or not your programme cares about all four.
  • Science is weighted heavily, which punishes anyone whose last science class was years ago.
  • The composite weighting is not published, so you cannot calculate exactly what a section is worth.
  • Three hours and twenty-nine minutes in one sitting is genuinely tiring.

Against the HESI A2

  • No published blueprint, so you cannot see question counts or timing before the day.
  • The exam differs between schools, which makes comparing your score with anyone else meaningless.
  • Subjects are reported separately, so one weak area can sink an otherwise strong result.
  • Some programmes add Chemistry or Physics, which many candidates do not discover until late.

If your school accepts both

Choose on subject fit, not on reputation. If your sciences are strong and your reading speed is not, the TEAS suits you, because Science is where the marks concentrate. If your school's HESI configuration leaves out the science exams, the A2 becomes the lighter paper for the same application. Ask which subjects it assigns before deciding. That single answer settles it more often than anything else.

Which is harder?

Neither, reliably. Candidates strong in reading often find the TEAS science sections tougher, and the reverse is just as common. Anyone telling you one is definitively easier is describing their own strengths, not the exams.

Whichever one your programme requires, practice is the same job

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