Top 7 Mistakes on NCLEX-RN & Healthcare Exams and How to Avoid Them

Introduction

Every year, thousands of nursing graduates sit for the NCLEX-RN and other healthcare licensing exams, only to find themselves repeating the same avoidable errors. Mistakes on these tests often stem not from a lack of knowledge, but from flawed test-taking strategies, misinterpretation of questions, or poor time management. In this article, we break down the seven most common mistakes candidates make - and provide actionable steps to correct them. Whether you are preparing for the NCLEX-RN, ATI, HESI, or a specialty certification, these insights will help you approach exam questions with clarity and precision.

1. Why Do Candidates Misread the Question Stem?

One of the most frequent errors is reading the question too quickly and missing critical words like “except,” “most,” “first,” or “best.” For example, a question might ask, “Which intervention should the nurse perform first?” but a candidate who only skimmed might choose the later action instead of the immediate priority.

How to Avoid This Mistake

Underline key terms on scratch paper or in your mind (e.g., “first,” “priority,” “contraindicated”).
Rephrase the question in your own words before looking at answer choices.
Identify the stem’s intent: Is it asking for a nursing action, a client teaching point, or a medication side effect? Misreading the intent leads to wrong answers.

2. How Can You Improve Prioritization (Maslow’s Hierarchy & ABCs)?

Prioritization questions are a staple of the NCLEX-RN, and many candidates rank options based on what feels urgent rather than using a systematic framework. For instance, a patient with a slight oxygen desaturation (92%) may seem less urgent than one with mild pain - but airway and breathing always come before comfort.

How to Avoid This Mistake

Use the ABCs (Airway, Breathing, Circulation) as your first filter. Then apply Maslow’s hierarchy (physiological needs > safety > psychosocial).
Consider acute vs. chronic: An acute change in status (e.g., sudden confusion) takes priority over a chronic complaint (e.g., knee pain for 2 years).
Practice with clinical scenarios: The NCLEX-RN prioritizes client safety, so anything that threatens life, limb, or function comes first.

Example: A nurse cares for four clients: one with a new tracheostomy with bloody secretions, one with a fractured femur awaiting surgery, one with a urinary tract infection and temperature 38.9°C (102°F), and one with diabetes requiring insulin teaching. The tracheostomy client is first because breathing is compromised.

3. What Common Errors Happen with Pharmacology Questions?

Pharmacology questions trip up many candidates due to confusion between drug classes, overlapping side effects, or failure to remember nursing implications. A typical mistake is selecting an answer that describes a drug’s correct therapeutic effect but ignores a serious adverse effect that would stop the nurse from administering it.

How to Avoid This Mistake

Know your drug classes and prototypes: Focus on the top 100 medications for the NCLEX (e.g., anticoagulants, opioids, insulin, antibiotics).
Always link the drug to its nursing considerations: For example, metformin can cause lactic acidosis - assess renal function before administration. Warfarin requires monitoring INR and checking for bleeding.
Use the method of “which order would you question?” If a medication order seems wrong (e.g., 10 mg morphine IV for a patient with respiratory rate of 8), you must hold and clarify.

4. How Does Test Anxiety Affect Decision Making?

Even well-prepared candidates can freeze under timed pressure, leading to second-guessing, rushing, or skipping questions. Anxiety often causes a candidate to change answers from correct to incorrect or to misread straightforward questions.

How to Avoid This Mistake

Simulate exam conditions while studying: use a timer, do 75-145 questions in one sitting, and avoid interruptions.
Learn to recognize anxiety cues: If your heart races or your mind goes blank, take three slow breaths before continuing. This resets your focus.
Develop a test-day routine: Get adequate sleep, eat a protein-rich meal, and arrive early. Confidence comes from preparation, not luck.

5. Why Do Candidates Forget to Apply the Nursing Process?

The nursing process (Assessment, Diagnosis, Planning, Implementation, Evaluation) is the foundation of the NCLEX. Many test takers jump straight to implementation (the “doing” step) without fully assessing the situation first. For example, a question about a client reporting chest pain will ask the nurse to take a certain action. The correct first step is always to assess (e.g., vital signs, pain characteristics) before notifying the provider or giving medication.

How to Avoid This Mistake

Memorize the order: Assessment always comes first unless the question explicitly says the client is unstable (e.g., no pulse, not breathing). In that case, you move to intervention (CPR).
Use this checklist for any clinical scenario:
1. Gather data (assess).
2. Identify the problem (analyze).
3. Plan and implement.
4. Evaluate outcomes.

6. How Can You Avoid Careless Errors with Delegation and Scope of Practice?

Delegation questions often involve team members like LPNs/LVNs, UAPs (unlicensed assistive personnel), and other RNs. Mistakes happen when candidates assign tasks outside a team member’s scope or fail to consider the stability of the client. For instance, an LPN cannot perform the initial assessment of a new admission, but an RN can delegate vital signs to a UAP for a stable patient.

How to Avoid This Mistake

Know the scope for each role: RNs assess, plan, and evaluate; LPNs can implement stable, predictable care (e.g., administer medications, perform routine wound care); UAPs can perform basic tasks (bathing, feeding, vital signs) but not interpret data or teach.
Consider the client’s condition: Never delegate something to a UAP for an unstable client. The sicker the client, the more care must be done by an RN.
Practice delegation scenarios until the principles become second nature.

7. What Role Does Time Management Play in Test Errors?

Poor time management leads to rushed decisions in the final portion of the exam. Some candidates spend too long on difficult questions, leaving no time to read easier ones carefully. Others move too quickly and miss obvious details.

How to Avoid This Mistake

Set a pace: For the NCLEX, you have about 1-1.5 minutes per question. Practice with timed quizzes to find a comfortable rhythm.
Use the “flag and move” strategy: If a question feels too hard, flag it, select your best answer, and come back later if time allows. Do not dwell.
Leave no question blank: There is no penalty for guessing, so always answer every question.

Weave in the Product Recommendation

If you find that pharmacology and prioritization are your weaker areas, targeted study can make a significant difference. The NCLEX-RN Study Guide for Pharmacology, Prioritization, and Medication Safety (available at PrepMaster Digital) offers focused review of the top drug classes, priority frameworks, and safety scenarios exactly in the real exam's format and difficulty. This resource condenses must-know content into digestible modules and includes practice questions with detailed rationales. Many candidates use it to reinforce the strategies described in this article. For more information, visit our NCLEX-RN Pharmacology and Prioritization guide.

Conclusion

The road to nursing licensure is challenging, but recognizing common pitfalls is half the battle. By addressing these seven mistakes - misreading questions, neglecting prioritization frameworks, pharmacology confusion, test anxiety, skipping assessment, delegation errors, and poor time management - you can approach your exam with a clearer strategy. Consistent practice with high-quality review materials will sharpen your clinical judgment and help you apply nursing knowledge effectively. Focus on understanding principles, not memorizing answers, and you will be well-prepared for the NCLEX-RN and beyond.