200+ Free CNRN Practice Questions

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Which structure connects the two cerebral hemispheres and allows communication between them?

Corpus callosum

Fornix

Anterior commissure

Posterior commissure

to track

2026 Statistics

Key Facts: CNRN Exam

220

Total Items

ABNN CNRN exam page

200 + 20

Scored + Unscored

ABNN CNRN exam page

200

Minimum Passing Score (scaled)

ABNN CNRN exam page

Exam Time

ABNN CNRN exam page

$300/$400

Member / Nonmember Fee

ABNN CNRN exam page

62%

2024 Pass Rate

ABNN 2026 Candidate Handbook

1 year

Required Neuroscience Experience

ABNN CNRN eligibility

3 years

Recertification Cycle

ABNN CNRN FAQ

ABNN's CNRN exam consists of 220 multiple-choice questions (200 scored + 20 unscored pretest) delivered over 4 hours. The exam uses scaled scoring with a minimum passing score of 200. The six content domains are: Neuroanatomy and Neurology (22%), Neurotrauma (16%), Cerebrovascular (19%), Neurological Disorders (22%), Infection and Immune (10%), Neurodevelopmental (6%), and Professional Practice (5%). ABNN requires 1 year of neuroscience nursing experience for eligibility.

Sample CNRN Practice Questions

Try these sample questions to test your CNRN exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.

1Which structure connects the two cerebral hemispheres and allows communication between them?

A.Corpus callosum

B.Fornix

C.Anterior commissure

D.Posterior commissure

Explanation: The corpus callosum is the largest white matter structure in the brain, consisting of approximately 200 million myelinated axons that connect the left and right cerebral hemispheres. It allows for transfer of sensory, motor, and cognitive information between hemispheres. The fornix connects the hippocampus to the mammillary bodies and is part of the limbic system.

2A patient has difficulty understanding spoken language but can speak fluently. Which area of the brain is most likely affected?

A.Broca's area

B.Wernicke's area

C.Angular gyrus

D.Supramarginal gyrus

Explanation: Wernicke's area, located in the posterior superior temporal gyrus of the dominant hemisphere (usually left), is responsible for language comprehension. Damage results in receptive aphasia where patients can speak fluently but with poor content and cannot understand spoken or written language. Broca's area damage causes expressive aphasia with non-fluent speech but preserved comprehension.

3Which lobe of the cerebral cortex is primarily responsible for processing visual information?

A.Frontal lobe

B.Parietal lobe

C.Temporal lobe

D.Occipital lobe

Explanation: The occipital lobe, located at the posterior pole of the cerebrum, contains the primary visual cortex (Brodmann area 17) and visual association areas. It processes visual stimuli including color, form, and motion. The frontal lobe controls executive functions, the parietal lobe processes sensory information, and the temporal lobe handles auditory processing and memory.

4The blood-brain barrier is formed primarily by which cellular structures?

A.Astrocyte foot processes

B.Tight junctions between endothelial cells

C.Oligodendrocyte membranes

D.Microglial cells

Explanation: The blood-brain barrier (BBB) is primarily formed by tight junctions between capillary endothelial cells in the cerebral vasculature. These tight junctions prevent paracellular diffusion of hydrophilic substances. Astrocytes contribute to BBB maintenance through foot processes that wrap around capillaries, but the barrier itself is at the endothelial level.

5Which structure is responsible for coordinating voluntary movements, balance, and posture?

A.Basal ganglia

B.Cerebellum

C.Thalamus

D.Hypothalamus

Explanation: The cerebellum, located posterior to the brainstem and inferior to the occipital lobes, coordinates voluntary movements, maintains posture and balance, and contributes to motor learning. The basal ganglia are involved in movement initiation and inhibition. The thalamus serves as a relay station for sensory information, and the hypothalamus regulates autonomic and endocrine functions.

6A lesion in which area would most likely cause contralateral hemiparesis of the face, arm, and leg?

A.Internal capsule

B.Cerebellar hemisphere

C.Brainstem

D.Parietal cortex

Explanation: The internal capsule contains the corticospinal and corticobulbar tracts in a concentrated arrangement. A lesion here typically causes contralateral hemiparesis affecting the face, arm, and leg equally. The anterior limb carries frontopontine fibers and thalamocortical projections, while the posterior limb carries the corticospinal tract with face and arm fibers anterior to leg fibers.

7Which ventricle is located between the brainstem and the cerebellum?

A.Lateral ventricle

B.Third ventricle

C.Cerebral aqueduct

D.Fourth ventricle

Explanation: The fourth ventricle is a diamond-shaped cavity located anterior to the cerebellum and posterior to the pons and upper medulla oblongata. CSF flows from the cerebral aqueduct into the fourth ventricle and exits through the lateral (foramina of Luschka) and median (foramen of Magendie) apertures into the subarachnoid space.

8Which cranial nerve is tested when assessing pupillary response to light?

A.CN II and CN III

B.CN II only

C.CN III only

D.CN IV and CN VI

Explanation: The pupillary light reflex involves both CN II (optic) and CN III (oculomotor). CN II carries the afferent (sensory) signal from the retina to the pretectal area of the midbrain. CN III carries the efferent (motor) signal to the sphincter pupillae muscle causing pupillary constriction. Testing the direct and consensual light reflexes evaluates both nerves.

9A patient presents with difficulty with downward and inward eye movement. Which cranial nerve is affected?

A.CN III (Oculomotor)

B.CN IV (Trochlear)

C.CN VI (Abducens)

D.CN V (Trigeminal)

Explanation: CN IV (Trochlear nerve) innervates the superior oblique muscle, which enables the eye to move downward when adducted (looking toward the nose). Patients with trochlear nerve palsy often present with vertical diplopia that worsens when looking downward (e.g., walking down stairs) and a compensatory head tilt away from the affected side.

10The gag reflex tests which cranial nerves?

A.CN IX and X

B.CN VII and VIII

C.CN V and VII

D.CN X and XI

Explanation: The gag reflex involves CN IX (glossopharyngeal) for the afferent (sensory) limb from the posterior pharynx and CN X (vagus) for the efferent (motor) limb causing pharyngeal muscle contraction. Testing this reflex helps assess brainstem function, particularly in patients with altered consciousness or suspected brain death.

About the CNRN Exam

CNRN is ABNN's specialty certification for registered nurses providing care to patients with neurological conditions across the care continuum. The exam tests knowledge of neuroanatomy and physiology, neurotrauma, cerebrovascular disorders, neurological disorders, infection and immune conditions, neurodevelopmental conditions, and professional practice in neuroscience nursing.

Questions

220 scored questions

Time Limit

4 hours

Passing Score

Scaled score 200 (minimum passing)

Exam Fee

$300 AANN members / $400 non-members (ABNN (American Board of Neuroscience Nursing))

CNRN Exam Content Outline

22%

Neuroanatomy and Neurology

Brain anatomy, cranial nerves, spinal cord, neurological assessment including GCS, pupillary assessment, motor/sensory function, and cerebral blood flow

16%

Neurotrauma

Traumatic brain injury classification and management, increased ICP, herniation syndromes, spinal cord injury, autonomic dysreflexia, and ICP monitoring

19%

Cerebrovascular

Ischemic stroke, hemorrhagic stroke, subarachnoid hemorrhage, stroke interventions including tPA and thrombectomy, and vasospasm management

22%

Neurological Disorders

Seizures and epilepsy, brain tumors, meningitis, encephalitis, neurodegenerative diseases, movement disorders, and hydrocephalus

10%

Infection and Immune

CNS infections, autoimmune neurological disorders, neurogenic shock, and infection control

Neurodevelopmental

Pediatric neurological conditions, developmental milestones, cerebral palsy, spina bifida, and neural tube defects

Professional Practice

Patient and family education, interdisciplinary collaboration, scope of practice, and ethical considerations in neuroscience nursing

How to Pass the CNRN Exam

What You Need to Know

Passing score: Scaled score 200 (minimum passing)
Exam length: 220 questions
Time limit: 4 hours
Exam fee: $300 AANN members / $400 non-members

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CNRN Study Tips from Top Performers

1Study by the ABNN domain weighting - prioritize Neuroanatomy/Neurology and Neurological Disorders (22% each) as the largest sections

2Master neurological assessment including GCS, pupillary assessment, and motor/sensory examination

3Know intracranial pressure management including monitoring, waveforms, and interventions for increased ICP

4Understand stroke interventions including IV tPA eligibility, mechanical thrombectomy, and post-intervention care

5Study seizure classifications, status epilepticus management, and antiepileptic drug nursing considerations

6Review spinal cord injury levels and their functional implications, including autonomic dysreflexia recognition

7Practice differentiating types of cerebral edema and appropriate nursing interventions

Frequently Asked Questions

How many questions are on the CNRN exam?

ABNN lists 220 total items: 200 scored items and 20 unscored pretest items. You have 4 hours to complete the exam.

What score do I need to pass CNRN?

ABNN uses scaled scoring with a minimum passing score of 200. The exact number of correct answers needed varies based on exam form difficulty.

How long is the CNRN exam?

ABNN lists a 4-hour testing appointment for CNRN.

How much does CNRN cost?

ABNN's current CNRN fees are $300 for AANN members and $400 for non-members.

Who can take the CNRN exam?

ABNN requires active unrestricted RN licensure with a minimum of 1 year of neuroscience nursing experience. This includes direct care of neuroscience patients in settings such as neuro ICU, neurology unit, neurosurgical unit, emergency department, rehabilitation, or outpatient neurology clinic.

How often do I renew CNRN?

ABNN certifications follow a 3-year recertification cycle. You can recertify by completing continuing education hours or by retaking the exam.

What content does the CNRN exam cover?

The 2026 CNRN Content Outline includes 7 domains: Neuroanatomy and Neurology (22%), Neurotrauma (16%), Cerebrovascular (19%), Neurological Disorders (22%), Infection and Immune (10%), Neurodevelopmental (6%), and Professional Practice (5%).