NCLEX-RN Cheat Sheet.
The night-before summary, built like the exam.

NCLEX-RN Cheat Sheet: Must-Know Priority Frameworks

When a question asks "what does the nurse do first?", walk these hierarchies in order.

• ABCs — Airway → Breathing → Circulation. A patent airway always outranks a circulation problem.
• Maslow — Physiological needs before safety, before psychosocial. A physical need (oxygen, fluids, elimination) outranks an emotional one.
• Nursing Process (ADPIE) — Assessment → Diagnosis → Planning → Implementation → Evaluation. When unsure, assess before you act (unless an ABC intervention is obvious).
• Safety / Least-restrictive — Choose the option that protects the patient without over-restricting.

Delegation: The 5 Rights

Right task, right circumstance, right person, right direction/communication, right supervision.

• RN keeps: assessment, teaching, evaluation, unstable patients, anything requiring nursing judgment.
• LPN/LVN can: stable patients, routine meds (per scope), reinforce teaching, dressing changes.
• UAP/CNA can: ADLs, vitals on stable patients, ambulation, intake/output, positioning.
• Rule of thumb: delegate the stable, routine, and predictable; keep the unstable, novel, and judgment-based.

Vital Sign Reference Ranges (Adult)

• Heart rate: 60–100 bpm
• Respiratory rate: 12–20 breaths/min
• Blood pressure: <120/80 mmHg (normal)
• Temperature: ~98.6°F (37°C)
• SpO₂: 95–100%

Key Lab Values

• Sodium (Na⁺): 135–145 mEq/L
• Potassium (K⁺): 3.5–5.0 mEq/L — the "danger" electrolyte; both high and low cause fatal arrhythmias
• Calcium (Ca²⁺): 9.0–10.5 mg/dL
• Magnesium (Mg²⁺): 1.5–2.5 mEq/L
• Chloride (Cl⁻): 98–106 mEq/L
• Fasting glucose: 70–110 mg/dL
• Creatinine: 0.6–1.2 mg/dL
• BUN: 10–20 mg/dL
• Hemoglobin: 12–18 g/dL (F 12–16, M 14–18)
• Hematocrit: 37–52%
• Platelets: 150,000–400,000/µL
• WBC: 5,000–10,000/µL
• pH: 7.35–7.45 · PaCO₂ 35–45 mmHg · HCO₃⁻ 22–26 mEq/L
• INR (therapeutic on warfarin): 2.0–3.0

ABG Interpretation (ROME)

Respiratory Opposite, Metabolic Equal.

• Respiratory: pH and PaCO₂ move in opposite directions (↓pH + ↑CO₂ = respiratory acidosis).
• Metabolic: pH and HCO₃⁻ move in the same direction (↓pH + ↓HCO₃⁻ = metabolic acidosis).

Med-Math Formulas

• Desired ÷ Have × Quantity = amount to administer.
• IV drip rate (gtt/min) = (volume in mL × drop factor) ÷ time in minutes.
• IV pump rate (mL/hr) = total volume ÷ total hours.
• Always double-check units and safe-dose ranges before administering.

High-Alert Safety Rules

• Rights of medication: right patient, drug, dose, route, time, documentation, reason, response.
• Verify identity with two patient identifiers.
• Airborne precautions (negative-pressure room, N95): Measles, TB, Varicella — mnemonic "My Chicken Hez TB" / MTV.
• Droplet precautions: influenza, pertussis, meningitis, mumps, rubella.
• Contact precautions: MRSA, VRE, C. diff (use soap and water — alcohol gel doesn't kill spores).

Position Quick-Reference

• Semi-Fowler's: respiratory distress, post-op, tube feedings (aspiration prevention).
• Left lateral (Sims'): enemas, pregnancy (improves placental perfusion).
• Trendelenburg / supine legs raised: shock/hypotension.
• High-Fowler's: eating, severe dyspnea.
• Flat, no pillow: post-lumbar puncture / spinal.

Test-Taking Strategy

• If two answers are opposites, the correct one is often in that pair.
• Choose assessment over intervention unless an ABC/emergency is stated.
• Never select an answer that abandons or delays care, passes the buck, or asks "why" (avoid "why did you…" therapeutic-communication traps).
• Pick the least invasive, safest effective option first.

The Test Format at a Glance

The NCLEX-RN is a computerized adaptive test delivered by Pearson VUE. Unlike traditional fixed-length exams, your test adapts—harder questions appear after you answer correctly, easier ones if you struggle. This means no two test-takers see identical exams.

You must answer a minimum of 85 items, but the test can extend up to 150 questions maximum. The total time allowance is 5 hours, which includes the tutorial, sample items, and all breaks. Time management is critical: adaptive logic may end your test earlier if the computer has high confidence in a pass or fail decision.

The Four Client Needs Categories

The NCLEX-RN test plan organizes content into 4 major Client Needs categories. These are not weighted equally on the exam. Memorize which topics fall under each:

• Safe and Effective Care Environment (management, safety, infection control, legal/ethical)
• Health Maintenance and Restoration (medications, disease processes, treatments)
• Psychosocial Integrity (mental health, coping, therapeutic communication)
• Physiological Integrity (basic care, homeostasis, pharmacology details)

Each category has subcategories with specific weightings. The largest portions are Health Maintenance and Restoration, and Physiological Integrity. Know which client need applies to each question—this guides prioritization.

Test Plan Updates and Clinical Judgment

The NCLEX-RN Test Plan is reviewed and updated every 3 years based on a practice analysis of newly licensed registered nurses. The 2026 edition emphasizes clinical judgment—your ability to recognize cues, interpret data, take action, and reflect on outcomes. This is not rote memorization; it is contextual reasoning under uncertainty.

The Next Generation NCLEX (NGN) format deepens this focus. Expect scenario-based, unfolding case studies where your earlier answers unlock new information. You cannot skip questions or go back; plan your reasoning carefully.

Common Question Traps to Avoid

• Absolutes. Watch for words like "always," "never," and "all." Nursing is contextual; rarely is anything absolute.
• Overlapping correct answers. Multiple choices may be true, but one is "most" correct or addresses the highest priority. Use Maslow's hierarchy and the nursing process (assess before intervene).
• Red herrings. Options that sound clinical but are irrelevant, outdated, or contraindicated. Cross-reference with current standards (AHA, CDC, your textbook).
• Misread orders. Re-read the stem. Is the question asking what NOT to do, what to do first, or what the expected outcome is? Misreads are costly.
• Over-thinking. If two answers seem equally good, trust your first instinct unless you spot a reason to change. Anxiety rewrites correct answers into incorrect ones.

Must-Know Numbers and Fees

Before You Register: The Steps

1. Apply with your state board. Candidates must apply for licensure with a nursing regulatory body or state board of nursing before registering for the NCLEX.
2. Wait for ATT. After eligibility is confirmed, you receive an Authorization to Test (ATT) and can schedule the exam at a Pearson VUE test center.
3. Pay the fee. The NCLEX registration fee is $200 for U.S. licensure.
4. Schedule and attend. Book your test center slot well in advance; popular dates fill quickly.

If You Don't Pass on Your First Try

A candidate who does not pass may retake the NCLEX after a waiting period established by NCSBN retake rules. Waiting periods vary by state. Between attempts, use official resources—the NCSBN publishes the official NCLEX-RN Test Plans, candidate bulletins, and reliability and validity documentation. Review weak areas systematically; retakers often fail the same content twice.

Night-Before Checklist

• Confirm your test center location, time, and parking.
• Bring two forms of ID; one must have a photo.
• Arrive 15 minutes early. Late arrivals forfeit the exam.
• Leave your phone, smartwatch, and notes at home. No study materials in the test center.
• Eat a balanced meal beforehand. Low blood sugar tanks focus.
• Sleep 6–7 hours. All-nighters degrade adaptive reasoning.
• Dress in layers. Test center temperature varies.
• Review test plan categories one last time, not full chapters. Cramming introduces interference.

During the Exam: Mental Moves

Read the question stem first, cover the answer options, and predict an answer. Then match your prediction to the options. If no exact match, eliminate obvious wrong options and choose the best fit. Flag confusing wording and return to it only if time permits. Trust the adaptive logic: if the exam keeps running and climbing in difficulty, you are likely passing. If questions feel progressively easier, you may be struggling—adjust your pacing and reconsider your bubble choices.

Use the ABCDE method for prioritization: Airway before breathing, breathing before circulation. When a question asks "what do you do first?" the answer is almost always the highest-acuity need. Similarly, delegation questions require you to know scope: RNs can delegate to LPNs and CNAs, but certain tasks are RN-only (assessment, medication titration, complex teaching).

High-Yield Formulas and Vital Sign Ranges

Memorize pediatric dosing: most drugs are dosed by weight in mg/kg. Renal function determines medication excretion; creatinine clearance (Cockcroft-Gault) predicts drug accumulation in elderly clients. Blood pressure targets vary by condition—hypertensive urgency is typically >180/120 mm Hg with symptoms; crisis requires immediate intervention. Pulse oximetry below 90% is usually unacceptable; oxygen titration begins at 91–94% for most, but COPD clients retain CO2, so target is often 88–92%.

Infection control: standard precautions always; transmission-based (airborne, droplet, contact) layered on top. Handwashing before and after glove use. Sharps safety is non-negotiable. Labs: potassium normal 3.5–5.0 mEq/L (hypokalemia <3.5 causes arrhythmias); sodium 135–145 mEq/L (hyponatremia <135 causes confusion). Know how to interpret ABGs: pH, PCO2, HCO3. A low pH + low HCO3 = metabolic acidosis; high PCO2 = respiratory component.

Pharmacology Quick Rules

• ACE inhibitors (lisinopril, enalapril): Monitor K+, creatinine. Dry cough is common; contraindicated in pregnancy.
• Loop diuretics (furosemide): Cause hypokalemia, hyponatremia. Monitor I&Os, weight daily.
• Anticoagulants (warfarin, heparin, DOACs): Bleeding precautions. Heparin labs (aPTT); warfarin labs (INR). Reversal agents differ by drug.
• Antibiotics: Culture before first dose. Complete full course even if symptoms resolve. Allergy history critical.
• Opioids: Respiratory depression is the ceiling effect. Constipation is expected; offer stool softeners prophylactically.

Resources and Support

Official resources include the NCSBN and the NCLEX Pass Rate dashboard, which reports results by educational program, first-time versus repeater status, and domestically versus internationally educated candidates. This data shows you where your school ranks and what outcomes look like. Study group partners and a clinical mentor can anchor your preparation. The NCSBN also offers official sample questions and a tutorial preview—do not skip these on exam day. Review weak topics daily for one week before your exam; avoid the temptation to cram new material in the final 48 hours.