10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free DACNB questions are organized by exam domain, so you can see how each part of the Diplomate of the American Chiropractic Neurology Board blueprint is tested. Reveal the answer and explanation under each question.
A clinician explains that a neuron communicates with another cell through an organized process involving an electrical signal, neurotransmitter release, and receptor activation. Which concept describes this basic functional organization?
Correct answer: A - Synaptic transmission between excitable cells
A patient has numbness of the thumb, reduced biceps reflex, and weakness with elbow flexion. Which nerve root pattern is most consistent with these findings?
Correct answer: B - C6
A patient presents with sudden unilateral facial weakness involving the forehead, inability to fully close the eye, and decreased taste sensation from the anterior tongue. Which finding best supports a peripheral facial nerve lesion rather than a central upper motor neuron lesion?
Correct answer: B - Involvement of both upper and lower facial muscles on the affected side
A patient reports brief electric shock-like facial pain triggered by brushing the teeth. Neurological examination is otherwise normal. Which diagnosis is most likely?
Correct answer: A - Trigeminal neuralgia
A patient reports vertigo lasting seconds when rolling over in bed. Examination reveals a positive Dix-Hallpike maneuver with characteristic positional nystagmus. What is the most likely diagnosis?
Correct answer: A - Benign paroxysmal positional vertigo due to canalithiasis
A patient performs a finger-to-nose test and repeatedly overshoots the target with irregular movement. Which finding is demonstrated?
Correct answer: A - Dysmetria associated with cerebellar dysfunction
A patient demonstrates resting tremor, bradykinesia, and rigidity. Dysfunction of which structure is most associated with this movement disorder pattern?
Correct answer: B - Basal ganglia circuitry involving dopamine pathways
During an examination, a patient develops lightheadedness, decreased heart rate, and hypotension after prolonged standing. Which autonomic mechanism is most directly impaired?
Correct answer: C - Sympathetic-mediated maintenance of vascular tone
A patient has difficulty producing speech but understands commands and can write meaningful responses. A lesion affecting which cortical area is most likely?
Correct answer: C - Broca area of the dominant frontal lobe
A patient with neck pain develops bilateral arm weakness, hand clumsiness, hyperreflexia in the legs, and a positive Hoffmann sign. Which clinical concern should be prioritized?
Correct answer: C - Cervical spinal cord involvement requiring appropriate evaluation
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