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Preparing for the HESI A2 exam prep can feel overwhelming, but with the right approach and resources, you can build the confidence needed to succeed. Whether you’re just beginning your nursing school journey or brushing up before test day, this HESI A2 study guide will walk you through the essentials: from understanding what is the HESI A2, to knowing how it’s scored, and most importantly, how to prepare with an effective HESI A2 study plan.

The HESI Admission Assessment (HESI A2) is an entrance exam used by nursing schools to evaluate applicants’ academic readiness. Schools rely on it to measure a candidate’s foundation in subjects essential for nursing, including math, science, reading comprehension, and grammar.

So, what is the HESI A2 in simple terms? It’s a test that ensures students entering nursing programs have the baseline knowledge and skills to succeed in rigorous coursework.

It is sometimes compared to the ATI TEAS exam. Many students often ask about HESI A2 vs ATI TEAS, but the key difference is that HESI tends to be more in-depth in the sciences, particularly anatomy and physiology.

The HESI A2 is divided into multiple sections. While some schools require only specific ones, it’s best to prepare for all in your HESI A2 exam prep.

 Math

Tests your ability to solve problems quickly and safely—critical for dosage calculations. Topics include:

1.  Fractions & decimals
2. Ratios & proportions
3.  Percentages (increases, decreases, proportions)
4.  Basic algebra

Tip: Take a HESI A2 practice test to simulate the math section and boost speed.

 Reading Comprehension

Assesses how well you interpret passages, which mirrors real-world patient instructions. Question types include:

1. Main idea identification
2. Inference & interpretation
3. Vocabulary in context
4. Supporting details

Anatomy & Physiology

Often the toughest section, it focuses on major body systems:

1. Cardiovascular
2. Respiratory
3.  Nervous
4. Musculoskeletal
5.  Digestive & endocrine

 Dedicate extra time in your HESI A2 study plan here, since many students struggle in this area.

 Biology & Chemistry

These sections test science fundamentals:

1.  Biology: cell structure, genetics, photosynthesis, metabolism
2.  Chemistry: atomic structure, bonding, acids/bases, chemical equations

 Review with practice questions to reinforce recall.

 Grammar & Vocabulary

Communication is vital in nursing. This section checks English mastery:

1.  Grammar: punctuation, sentence structure, subject-verb agreement
2.  Vocabulary: general + medical terminology

1. Each section is scored separately as a percentage.
2. Nursing schools may require a minimum score (75–80%) per section or overall.
3. Scores help programs identify readiness and areas needing remediation.

Knowing HESI A2 scoring helps set realistic study goals.

Here’s a step-by-step framework for success:

1. Check Program Requirements – Know which sections are required.
2. Set a Timeline – Allow 4–6 weeks of structured HESI A2 exam prep.
3. Gather Resources – Use an official HESI A2 study guide and trusted online tools.
4. Take a Diagnostic Test – Identify your weak areas with a HESI A2 practice test.
5. Target Weaknesses – Spend more time on math and sciences.
6. Daily Review – Study 30–60 minutes consistently, avoid cramming.
7. Timed Practice – Simulate exam conditions to reduce anxiety.
8. Stay Balanced – Rest, hydrate, and manage stress for peak performance.

The HESI A2 exam is a critical step in your nursing school journey. By understanding what is the HESI A2, breaking down each section, and learning how HESI A2 scoring works, you’re already on the right track.

Building a structured HESI A2 study plan and reinforcing it with HESI A2 practice tests will help you walk into exam day with confidence. And if you’re comparing HESI A2 vs ATI TEAS, remember that HESI focuses more heavily on the sciences.

With consistent HESI A2 exam prep, you’ll not only pass the test but also strengthen the foundation you need for success in nursing school and beyond.