NRCME Musculoskeletal System Assessment 5 — Questions and Answers
Question 1: Which spinal condition, even if well-managed, requires the medical examiner to pay special attention to narcotic analgesic use when making a certification decision?
- Mild lumbar spondylosis with no functional limitation
- Chronic severe spinal stenosis treated with long-term opioid pain management (Correct answer)
- Asymptomatic disc bulge noted incidentally on imaging
- Successfully fused vertebral fracture from 15 years prior with no current symptoms
Correct answer: Chronic severe spinal stenosis treated with long-term opioid pain management
Long-term opioid use for chronic spinal pain can impair alertness, reaction time, and judgment, all of which are disqualifying for CMV operation.
Question 2: A driver presents with Dupuytren's contracture causing fixed flexion deformity of the right ring and small fingers. What is the key assessment for the medical examiner?
- Whether the driver has a family history of the condition
- Whether the contracture impairs grip strength or steering wheel control sufficiently to affect safe driving (Correct answer)
- The aesthetic appearance of the affected hand
- Whether surgical release has been offered by the driver's surgeon
Correct answer: Whether the contracture impairs grip strength or steering wheel control sufficiently to affect safe driving
The medical examiner must determine whether finger contracture sufficiently impairs grip or steering control to affect safe CMV operation.
Question 3: What is the minimum acceptable grip strength threshold the medical examiner should look for when assessing a commercial driver's ability to control a steering wheel?
- Any palpable grip is sufficient for certification
- The FMCSA mandates a specific grip strength value in pounds
- There is no published FMCSA numeric standard; the examiner uses clinical judgment to determine if grip is functionally adequate for CMV operation (Correct answer)
- Grip strength of at least 50 lbs bilaterally is federally mandated
Correct answer: There is no published FMCSA numeric standard; the examiner uses clinical judgment to determine if grip is functionally adequate for CMV operation
FMCSA does not publish a specific numeric grip strength cutoff; the examiner must use clinical judgment to determine if grip is functionally adequate for safe steering.
Question 4: A driver with an above-knee prosthesis on the right side wishes to drive a commercial vehicle. Which of the following is true?
- Above-knee amputees are permanently disqualified from CMV driving under all circumstances
- The driver may be eligible for a federal SPE certificate if they can demonstrate safe operation of an appropriately modified CMV (Correct answer)
- The driver is automatically qualified if they can operate a personal vehicle
- The driver must have the prosthesis for at least 2 years before applying for a CDL
Correct answer: The driver may be eligible for a federal SPE certificate if they can demonstrate safe operation of an appropriately modified CMV
Above-knee amputees may qualify for CMV driving through the FMCSA Skill Performance Evaluation certificate program with an appropriately modified vehicle.
Question 5: During a NRCME exam, a driver is observed limping and unable to bear full weight on the left leg. What should the medical examiner do?
- Certify the driver if they report the limp has been present for years and is stable
- Further evaluate the cause and functional impact before making any certification decision (Correct answer)
- Automatically disqualify the driver due to gait abnormality
- Issue a 90-day temporary certificate pending the driver's own follow-up
Correct answer: Further evaluate the cause and functional impact before making any certification decision
An antalgic gait or inability to bear full weight requires investigation into the underlying cause and its functional impact on safe driving before certification.
Question 6: Which clinical test is used to evaluate lumbar nerve root tension signs that may indicate radiculopathy in a commercial driver?
- Phalen's test
- Straight leg raise (SLR) test (Correct answer)
- Finkelstein's test
- Tinel's sign at the wrist
Correct answer: Straight leg raise (SLR) test
The straight leg raise test reproduces radicular symptoms by tensioning the sciatic nerve and is used to identify lumbar nerve root involvement.
Question 7: A 58-year-old commercial driver is found to have osteoporosis on a recent DEXA scan. In the context of the NRCME examination, what is most relevant to safe driving?
- Bone density T-score value determines certification eligibility directly
- Whether the driver has current functional limitations or fracture risk that impairs their ability to safely operate a CMV (Correct answer)
- The driver should be disqualified due to elevated fracture risk in a crash
- Osteoporosis is irrelevant to commercial driving certification
Correct answer: Whether the driver has current functional limitations or fracture risk that impairs their ability to safely operate a CMV
Osteoporosis itself is not automatically disqualifying; the examiner assesses current functional status and whether the condition creates limitations affecting safe CMV operation.
NRCME Musculoskeletal System Assessment 5
Which spinal condition, even if well-managed, requires the medical examiner to pay special attention to narcotic analgesic use when making a certification decision?