HESI A2 Study Guide.
Everything the HESI A2 tests, taught in plain language and grouped by subtest, so you know exactly what to study and how. Start with a free lesson in each subject, then unlock the rest.
Mathematics
The arithmetic nursing school runs on: fractions, decimals, ratios, percentages, dosage conversions and the algebra behind them.
Reading
Read a passage under time pressure and answer for its main idea, its details, and what the writer is really doing.
Vocabulary
The academic and health vocabulary the exam expects, plus the word parts that unlock terms you have never seen.
Grammar
The parts of speech, how a sentence is built, and the handful of usage errors the exam tests again and again.
Anatomy & Physiology
The structure and function of the body, system by system, in the order the exam expects you to know them.
Biology
The cell and everything it does: its chemistry, its division, its genetics, and the microbes and immunity around it.
Chemistry
From atoms and the periodic table to bonding, reactions, solutions and the biochemistry your body runs on.
Physics
The physics a nursing program can ask for: motion and forces, energy and momentum, waves and light, and the basics of electricity. Check whether your program requires it.
8 subjects · 35 units · 97 lessons
Built subtest by subtest, the way the exam is sat.
The guide covers all 8 HESI A2 subtests in 35 units and 97 lessons, one topic per lesson. Each lesson teaches its topic in plain language and ends with a short self-check quiz. The exam is modular, so start with the subtests your program actually requires.
One unit in every subject is free to read in full, no card needed. Read a unit, then drill the same subtest with free HESI A2 practice questions, and when a subject holds steady, sit the free full-length HESI A2 practice test to see your percentage under exam timing.
The questions we are asked most about the guide.
Before you begin.
Is the HESI A2 study guide free?
Partly, and honestly so. One full unit in every subject is free to read, lesson by lesson, with no card. The remaining units are part of the paid editions, along with the full question bank and the timed practice tests.
Does it cover all eight subtests?
Yes: Mathematics, Reading Comprehension, Vocabulary, Grammar, Anatomy and Physiology, Biology, Chemistry, and Physics. The HESI A2 is modular, so check which subtests your program requires and study those subjects first.
How is the study guide organised?
Subject, then unit, then lesson. Each lesson teaches one topic from our editorial taxonomy of the exam in plain language and ends with a short self-check quiz.
How should I use it with the practice questions?
Learn a unit here first, then drill the same subtest in practice, where every answer carries a worked rationale. When a subject holds steady, sit the free full-length practice test to see your percentage under exam timing.