Free CCRN Practice Questions (With Rationales)

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Want a feel for the real CCRN before you pay for anything? Start here. Below are
sample Adult CCRN questions written in the same style as the AACN exam
— single best answer, scenario-driven, with a rationale that explains why
the right answer is right and the others are traps. Work each one before you read the answer.

Unlock 590+ CCRN practice questions across 4 full-length simulators — $19.99 lifetime →

How close are these to the actual CCRN?

Per the AACN CCRN Exam Handbook, the Adult CCRN is 150 questions
(125 scored, 25 unscored) over 3 hours. About 80% tests Clinical Judgment across body
systems, and 20% tests Professional Caring and the Synergy Model. The samples below mirror
that mix — mostly bedside judgment, with one Synergy-style item so you see both.

Sample CCRN questions

  1. A patient 2 days post anterior STEMI develops new crackles to the mid-lung
    fields, an S3, and a drop in SpO2 to 88% on 2 L. What is your priority action?

    • A. Increase the nasal cannula to 6 L
    • B. Sit the patient upright and notify the provider for suspected acute heart failure
    • C. Administer a 500 mL fluid bolus
    • D. Draw a troponin and wait for results

    Answer: B. The S3, new crackles, and falling saturation point to
    left-ventricular failure with flash pulmonary edema — common after a large anterior
    infarct. Upright positioning plus rapid escalation is the priority; a fluid bolus (C) would
    worsen the congestion, and waiting on labs (D) delays care.

  2. An intubated ARDS patient on volume-control ventilation has a plateau pressure
    of 34 cmH2O. Which change best protects the lungs?

    • A. Increase tidal volume to improve ventilation
    • B. Reduce tidal volume toward 6 mL/kg of predicted body weight
    • C. Increase the respiratory rate to 35
    • D. Switch to pressure support

    Answer: B. Lung-protective ventilation keeps plateau pressure under
    30 cmH2O, and the lever for that is a lower tidal volume (~6 mL/kg PBW). A higher
    tidal volume (A) raises the plateau further; an unstable patient with a plateau of 34 is not
    ready for pressure support (D).

  3. A septic patient remains hypotensive (MAP 58) after a 30 mL/kg crystalloid
    bolus. Per Surviving Sepsis principles, what comes next?

    • A. A second 30 mL/kg bolus
    • B. Start norepinephrine to target a MAP of at least 65
    • C. Start dopamine
    • D. Give a unit of packed red cells

    Answer: B. When fluids alone don’t restore perfusion, norepinephrine is
    the first-line vasopressor to reach a MAP of 65 or higher. Dopamine (C) is no longer
    preferred; transfusion (D) isn’t indicated without a hemoglobin trigger.

  4. A monitor shows a regular wide-complex tachycardia at 180 with a palpable pulse
    and a blood pressure of 132/80. What is the appropriate first step?

    • A. Immediate unsynchronized defibrillation
    • B. Synchronized cardioversion without delay
    • C. Assess, obtain a 12-lead, and consider adenosine or antiarrhythmics for stable VT
    • D. Begin chest compressions

    Answer: C. The patient is stable (good pressure, perfusing), so you have
    time to work the rhythm up rather than shock it. Defibrillation (A) is for pulseless rhythms;
    compressions (D) are wrong in a patient with a pulse.

  5. Which finding most strongly suggests your sedated, ventilated patient is in pain
    rather than simply under-sedated?

    • A. A RASS of −1
    • B. A rising Critical-Care Pain Observation Tool (CPOT) score with grimacing and
      ventilator dyssynchrony
    • C. A stable heart rate
    • D. Closed eyes

    Answer: B. Pain in a patient who can’t self-report is assessed with a
    validated behavioral tool such as CPOT; grimacing plus dyssynchrony is a classic signal.
    This item also reflects the Synergy Model’s focus on responding to the patient’s actual needs.

  6. A patient with DKA has a potassium of 3.2 mEq/L. What should happen before
    starting the insulin infusion?

    • A. Start insulin immediately to close the anion gap
    • B. Replace potassium first, because insulin will drive it lower
    • C. Give sodium bicarbonate
    • D. Restrict all IV fluids

    Answer: B. Insulin shifts potassium into cells, so starting it with a K
    of 3.2 can cause dangerous hypokalemia. Replace potassium first and hold insulin until it’s
    at least 3.3–3.5 mEq/L.

How did you do?

If a few of those felt shaky, that’s exactly what practice is for — the real exam
rewards pattern recognition you build by working hundreds of these. Our full bank gives you
590+ CCRN questions across 4 timed simulators, each with the same kind of rationale, plus a
free 30-question sample test you can take right now without paying.

Unlock 590+ CCRN practice questions across 4 full-length simulators — $19.99 lifetime →

Sources & references

The exam facts on this page are drawn from official certifying-body materials, reviewed 2026-06-18 by the DrCertifications exam-prep team (10+ years in exam preparation and publishing).