NRCME Neurological Disorders Evaluation 4 — Questions and Answers
Question 1: A driver with a history of traumatic brain injury (TBI) 18 months ago reports no seizures and has returned to work in a non-driving capacity. What factor is MOST important for the NRCME examiner to assess?
- Duration of post-traumatic amnesia only
- Severity of initial injury and current neurological function including cognitive status (Correct answer)
- CT scan findings at the time of injury
- Whether the driver was at fault for the accident causing TBI
Correct answer: Severity of initial injury and current neurological function including cognitive status
Current neurological function and severity of initial TBI determine residual risk; post-TBI seizure risk, cognitive deficits, and reaction time must all be evaluated.
Question 2: Which of the following neurological findings would be considered an absolute disqualifying condition for CMV certification under FMCSA standards?
- Well-controlled migraine without aura occurring once monthly
- Current diagnosis of epilepsy with breakthrough seizure in the past year (Correct answer)
- Remote history of febrile seizure in childhood with no adult recurrence
- Mild essential tremor affecting handwriting only
Correct answer: Current diagnosis of epilepsy with breakthrough seizure in the past year
A current diagnosis of epilepsy with a breakthrough seizure within the past year is disqualifying under FMCSA regulations regardless of antiepileptic treatment.
Question 3: During evaluation of a CMV driver candidate, the examiner notes an absent corneal reflex on one side. This finding suggests involvement of which cranial nerve?
- Cranial nerve II (optic)
- Cranial nerve V (trigeminal) afferent limb
- Cranial nerve VII (facial) efferent limb only
- Both CN V (afferent) and CN VII (efferent) — loss of either can abolish the reflex (Correct answer)
Correct answer: Both CN V (afferent) and CN VII (efferent) — loss of either can abolish the reflex
The corneal reflex requires intact CN V (afferent sensation) and CN VII (efferent blink); loss of either limb abolishes the reflex, so the examiner must distinguish which is affected.
Question 4: A driver reports intermittent double vision (diplopia) that resolves spontaneously. Which condition causing diplopia would be MOST concerning for CMV safety?
- Convergence insufficiency worsened by prolonged reading
- Intermittent exotropia controlled with prism glasses
- Transient diplopia from vertebrobasilar TIA (Correct answer)
- Decompensated phoria at near distance
Correct answer: Transient diplopia from vertebrobasilar TIA
Transient diplopia from vertebrobasilar TIA indicates high near-term stroke risk and is an urgent disqualifying concern requiring neurological workup before any certification.
Question 5: The NRCME examiner is reviewing a driver who takes gabapentin 600 mg three times daily for diabetic neuropathy pain. The primary safety concern is:
- Gabapentin's effect on peripheral nerve conduction
- Sedation and dizziness that may impair driving ability (Correct answer)
- Risk of gabapentin-induced seizures on abrupt discontinuation
- Gabapentin-induced hypertension
Correct answer: Sedation and dizziness that may impair driving ability
Gabapentin commonly causes dose-dependent sedation and dizziness, which can significantly impair a driver's alertness and reaction time while operating a CMV.
Question 6: A driver reports a 3-month history of progressive unilateral hearing loss and tinnitus. What neurological condition must be considered in the differential diagnosis?
- Acoustic neuroma (vestibular schwannoma) (Correct answer)
- Benign paroxysmal positional vertigo (BPPV)
- Ménière's disease only
- Presbycusis
Correct answer: Acoustic neuroma (vestibular schwannoma)
Unilateral progressive sensorineural hearing loss with tinnitus is a classic presentation of acoustic neuroma, which requires MRI evaluation to rule out before CMV certification.
Question 7: A driver with controlled hypertension presents with sudden onset severe headache described as 'the worst of my life' two weeks ago that resolved. The appropriate NRCME response is:
- Certify if blood pressure is controlled today
- Require documentation that a subarachnoid hemorrhage was excluded before certifying (Correct answer)
- Certify with 3-month follow-up only
- Refer for an EEG to rule out seizure activity
Correct answer: Require documentation that a subarachnoid hemorrhage was excluded before certifying
A thunderclap headache described as 'worst of my life' is a red flag for subarachnoid hemorrhage; the examiner must confirm this was excluded by appropriate neuroimaging and lumbar puncture before certifying.
NRCME Neurological Disorders Evaluation 4
A driver with a history of traumatic brain injury (TBI) 18 months ago reports no seizures and has returned to work in a non-driving capacity.
What factor is MOST important for the NRCME examiner to assess?