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Free NCLEX-RN practice questions with rationales

These 10 NCLEX-RN style questions are written against the NCSBN test plan and cover the categories that trip candidates up most: prioritization, pharmacology, safety and infection control, and clinical judgment. Every answer includes the same kind of full rationale you get in the paid bank.

Question 1Cardiovascular

A client with heart failure gains 4 lb (1.8 kg) in two days and reports new shortness of breath at night. Which action should the nurse take first?

Question 2Pharmacology

A client receiving IV heparin has an aPTT of 96 seconds (control 30 seconds). What is the nurse's priority action?

Question 3Safety & Infection Control

Which client requires airborne precautions?

Question 4Maternal Newborn

A laboring client's fetal monitor shows late decelerations with each contraction. Which action should the nurse take first?

Question 5Endocrine

A client with type 1 diabetes is diaphoretic, shaky, and confused. The blood glucose is 52 mg/dL. The client can swallow. What should the nurse give?

Question 6Prioritization

The nurse receives report on four clients. Which client should the nurse assess first?

Question 7Mental Health

A client taking lithium reports vomiting, coarse hand tremor, and unsteady gait. The lithium level is 2.1 mEq/L. What should the nurse do first?

Question 8Fluid & Electrolytes

A client's serum potassium is 6.8 mEq/L. Which finding requires the most immediate intervention?

Question 9Respiratory

Which finding indicates that a client with COPD is retaining carbon dioxide?

Question 10Delegation

Which task can the registered nurse safely delegate to unlicensed assistive personnel?

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NCLEX-RN study questions, answered

Are these real NCLEX questions?
No. These are original practice items written by nurses to mirror the style, difficulty, and clinical-judgment reasoning of the official NCSBN test plan. No real exam content is ever reproduced.
How many questions should I do before the NCLEX-RN?
Most of our students work through 1,500 to 2,500 quality questions with rationales, repeating the full bank until the reasoning behind each answer feels automatic — not just the answer itself.
What is the passing standard for the NCLEX-RN?
The NCLEX is a pass/fail computer-adaptive exam with a variable length. The exam continues until it can determine with 95% confidence that your ability is above or below the passing standard.

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Practice modeled on published test plans — not real exam items. Not affiliated with NCSBN, AANP, ANCC, or PNCB.