NRCME Musculoskeletal System Assessment 4 — Questions and Answers
Question 1: A driver with a history of compartment syndrome in the right lower leg underwent fasciotomy 6 months ago. What is the key functional assessment the examiner should perform?
- Assess the cosmetic appearance of fasciotomy scars
- Evaluate ankle dorsiflexion strength and sensation to confirm adequate pedal control (Correct answer)
- Order repeat compartment pressure measurements
- Check for signs of deep vein thrombosis
Correct answer: Evaluate ankle dorsiflexion strength and sensation to confirm adequate pedal control
Post-fasciotomy, the examiner must confirm adequate motor strength and sensation in the foot and ankle for safe pedal operation.
Question 2: Which of the following describes the most appropriate way to document a musculoskeletal finding that could affect driving safety on the MCSA-5875 form?
- List all diagnoses in the past medical history section only
- Document the specific functional limitation and whether it affects the ability to safely operate a CMV (Correct answer)
- Simply check 'yes' for musculoskeletal disease without further comment
- Note the condition only if the driver reports it as a current complaint
Correct answer: Document the specific functional limitation and whether it affects the ability to safely operate a CMV
The examiner must document specific functional limitations and their impact on safe CMV operation, not just diagnoses.
Question 3: A driver presents with bilateral knee replacements performed 14 months ago. They have no current pain and demonstrate full active range of motion. What is the most appropriate certification action?
- Disqualify due to history of major joint surgery
- Certify if functional examination confirms safe pedal operation with no other disqualifying conditions (Correct answer)
- Require a 2-year post-surgical waiting period before any certification
- Issue a one-year certificate only, regardless of functional status
Correct answer: Certify if functional examination confirms safe pedal operation with no other disqualifying conditions
With full recovery and adequate function confirmed on examination, bilateral knee replacement history alone does not preclude certification.
Question 4: During a musculoskeletal exam, a driver is unable to rise from a chair without using both arms to push up. What does this most likely indicate?
- Severe hip flexor tightness
- Proximal lower extremity or hip extensor muscle weakness (Correct answer)
- Ankle instability from prior sprains
- Normal finding in drivers over age 65
Correct answer: Proximal lower extremity or hip extensor muscle weakness
Inability to rise from a chair without arm assistance suggests significant proximal lower extremity or hip weakness that warrants further evaluation.
Question 5: What is the significance of detecting muscle atrophy in one lower extremity during a NRCME exam?
- It is expected in long-haul drivers and requires no action
- It may indicate chronic nerve compression, disuse, or neurological disease affecting that limb's strength (Correct answer)
- It is relevant only if the driver reports pain in that limb
- Muscle atrophy is a normal aging finding with no safety implications
Correct answer: It may indicate chronic nerve compression, disuse, or neurological disease affecting that limb's strength
Unilateral muscle atrophy can signal chronic radiculopathy, peripheral nerve injury, or other neurological disease, which may affect limb strength and driving safety.
Question 6: A CDL applicant has a congenital absence of the left arm below the elbow. They have been driving a personal vehicle with adaptive equipment for 5 years. What is the correct FMCSA process?
- Automatic disqualification with no exceptions available
- The driver must apply for a Skill Performance Evaluation (SPE) certificate demonstrating safe CMV operation (Correct answer)
- The driver is qualified as long as the vehicle has an automatic transmission
- State licensing authority determines fitness with no federal role
Correct answer: The driver must apply for a Skill Performance Evaluation (SPE) certificate demonstrating safe CMV operation
Drivers with limb loss or impairment must obtain a federal SPE certificate by demonstrating ability to safely operate a specific type of CMV.
Question 7: A driver reports that their right shoulder pain worsens when reaching overhead to adjust the mirror before driving. Which condition is most consistent with this complaint?
- Medial epicondylitis of the right elbow
- Rotator cuff pathology or shoulder impingement syndrome (Correct answer)
- Bicipital tendinopathy of the left shoulder
- Thoracic outlet syndrome causing bilateral arm symptoms
Correct answer: Rotator cuff pathology or shoulder impingement syndrome
Pain with overhead reaching is a classic presentation of rotator cuff pathology or impingement syndrome, which can limit functional use of the arm.
NRCME Musculoskeletal System Assessment 4
A driver with a history of compartment syndrome in the right lower leg underwent fasciotomy 6 months ago.
What is the key functional assessment the examiner should perform?