NCLEX Practice Questions with Detailed Rationales
Practice the way the real exam works: read the question, commit to an answer, then check the rationale. Every sample below comes from the NursingPlex NCLEX study library.
Exam-style questions
Multiple-choice, prioritization, and Next Generation (NGN) formats that mirror what you will see on test day.
Rationales for every answer
Each question explains why the correct answer is right, so every attempt becomes a study session.
Organized by topic
Focus on your weak areas — pharmacology, fluid and electrolytes, maternal-newborn, mental health, and more.
Try these sample NCLEX questions
Click any question to reveal the correct answer and its rationale.
From: NCLEX Prioritization & Delegation Practice Questions (ABC, Maslow, SBAR)
1. The nurse is assigned four clients. Which client should be assessed first?
- A. Client 2 days post-op requesting pain medication
- B. Client with a new onset of stridor and anxiety
- C. Client due for a scheduled dressing change
- D. Client requesting discharge teaching
Show answer & rationale
Correct answer: B
Stridor indicates upper airway obstruction — a life-threatening airway emergency that takes priority over pain, wound care, or teaching under the ABC framework.
From: NCLEX Pharmacology Questions: High-Alert Meds & Dosage Calculations
2. A client receiving IV heparin has an aPTT of 110 seconds (control 30 seconds). What should the nurse do first?
- A. Increase the infusion rate
- B. Stop the infusion and notify the provider
- C. Administer vitamin K
- D. Document the finding and reassess in 4 hours
Show answer & rationale
Correct answer: B
An aPTT more than 2.5x the control indicates the client is over-anticoagulated and at risk for bleeding; the infusion must be stopped and the provider notified. Vitamin K reverses warfarin, not heparin — protamine sulfate is the heparin antidote.
From: 50 NCLEX Fluid & Electrolyte Practice Questions (With Rationales)
3. A client has a serum potassium level of 6.2 mEq/L. Which finding should the nurse report immediately?
- A. Peaked T waves on the ECG
- B. Serum sodium of 140 mEq/L
- C. Respiratory rate of 18/min
- D. Mild muscle soreness
Show answer & rationale
Correct answer: A
Hyperkalemia causes peaked T waves, widened QRS complexes, and can progress to fatal dysrhythmias. This is the priority finding because it signals cardiac risk, not just a lab abnormality.
From: NCLEX Med-Surg: Cardiac & Respiratory Practice Questions
4. A client reports crushing substernal chest pain radiating to the left arm. What is the nurse's first action?
- A. Obtain a 12-lead ECG
- B. Administer sublingual nitroglycerin
- C. Call the client's family
- D. Assess the client's pain scale rating
Show answer & rationale
Correct answer: A
Obtaining a 12-lead ECG immediately is priority to identify STEMI changes and guide time-sensitive treatment; 'time is muscle' in suspected MI, so rapid diagnosis drives every next step.
From: NCLEX Maternal-Newborn (OB) Practice Questions
5. The fetal monitor shows variable decelerations. What is the nurse's first action?
- A. Administer oxytocin
- B. Reposition the client, often to left lateral
- C. Prepare for immediate cesarean section
- D. Increase the IV fluid rate only
Show answer & rationale
Correct answer: B
Variable decelerations typically indicate cord compression; repositioning the client (left lateral or knee-chest) is the first intervention to relieve pressure on the cord before other measures.
From: NCLEX Mental Health & Psychiatric Nursing Questions
6. A client states, "I don't see the point in living anymore." What is the nurse's best response?
- A. "Everyone feels that way sometimes."
- B. "Are you thinking of killing yourself?"
- C. "Let's talk about something more positive."
- D. "You have so much to live for."
Show answer & rationale
Correct answer: B
Direct, non-judgmental questioning about suicidal ideation is required whenever a client expresses hopelessness; asking directly does not increase risk and is essential for accurate safety assessment.
Ready for the full question bank?
Work through complete NCLEX practice sets with rationales for every question.
Start Practicing NowPractice questions by topic
NCLEX Prioritization & Delegation Practice Questions (ABC, Maslow, SBAR)
Practice NCLEX prioritization and delegation questions using ABC, Maslow's hierarchy, and delegation-to-scope frameworks, with rationales for each decision.
NCLEX Pharmacology Questions: High-Alert Meds & Dosage Calculations
NCLEX pharmacology practice questions on high-alert medications, dosage calculations, and adverse effects, with rationales explaining the correct nursing action.
50 NCLEX Fluid & Electrolyte Practice Questions (With Rationales)
Practice NCLEX-style fluid and electrolyte questions covering hyponatremia, hyperkalemia, dehydration, and fluid overload, with full rationales for every answer.
NCLEX Med-Surg: Cardiac & Respiratory Practice Questions
NCLEX med-surg practice questions on heart failure, MI, COPD, and respiratory distress, with rationales explaining the correct priority action.
NCLEX Maternal-Newborn (OB) Practice Questions
NCLEX maternal-newborn practice questions covering labor and delivery, postpartum hemorrhage, and newborn assessment, with detailed rationales.
NCLEX Pediatric Nursing Practice Questions
NCLEX pediatric nursing practice questions on growth and development, medication safety, and common childhood illnesses, with rationales for every answer.
NCLEX Mental Health & Psychiatric Nursing Questions
NCLEX mental health practice questions covering therapeutic communication, suicide risk assessment, and psychiatric medications, with full rationales.
NCLEX Lab Values Cheat Sheet + Practice Questions
A quick-reference NCLEX lab values cheat sheet plus practice questions on abnormal labs and the correct nursing action for each.
NCLEX Next Generation (NGN) Case Study Practice Questions
Practice NCLEX Next Generation NGN-style case study questions with clinical judgment models, bowtie items, and trend analysis, fully explained.
Therapeutic Communication NCLEX Questions (What to Say / What NOT to Say)
NCLEX therapeutic communication practice questions showing which nursing responses are therapeutic and which block communication, with rationales.
Frequently asked questions
Is doing more questions always better?
No — after a baseline volume (roughly 1,000+ questions), the marginal benefit of additional questions is smaller than the benefit of deeply reviewing rationales and closing category-specific gaps.
Does a longer NCLEX exam mean I failed?
No. Both passing and failing candidates can get exams of any length up to the maximum allowed questions — exam length reflects how close your ability level is to the passing standard, not which side of it you're on.
Can I pass the NCLEX using only free practice questions?
It's possible, but most candidates benefit from supplementing free resources with at least one source offering deep rationales and Next Generation item types, since these are common gaps in free question banks.
Is there partial credit on NCLEX SATA questions?
On the current NCLEX, most SATA-style items are scored using a +/- polytomous or partial-credit model as part of the new NGN scoring approach, but candidates should still aim to identify each correct option, since the exact scoring per item isn't visible to test-takers in real time.