NATA-BOC Clinical Evaluation and Diagnosis 2

Question 1

A patient presents with a positive Thompson test. Which structure is most likely injured?

Accepted Answer

Achilles tendon

Answer

The Thompson test (calf squeeze test) assesses the integrity of the Achilles tendon. A positive result, indicated by the absence of passive plantar flexion when the calf is squeezed, suggests a rupture of the Achilles tendon.

Question 2

Which clinical sign is most indicative of a Grade III lateral ankle sprain?

Accepted Answer

Positive talar tilt test with no endpoint

Answer

A positive talar tilt test with no definitive endpoint indicates complete rupture of the calcaneofibular ligament, consistent with a Grade III sprain involving multiple ligament tears and gross instability.

Question 3

During evaluation of a shoulder injury, the patient cannot maintain 90 degrees of abduction against gravity. Which nerve is most likely compromised?

Accepted Answer

Axillary nerve

Answer

The axillary nerve innervates the deltoid muscle, which is the primary abductor of the shoulder beyond 15 degrees. Inability to maintain abduction against gravity suggests axillary nerve compromise.

Question 4

An athlete complains of numbness in the thumb, index, and middle fingers that worsens at night. Which test would be most appropriate to confirm the suspected diagnosis?

Accepted Answer

Phalen test

Answer

The Phalen test is used to diagnose carpal tunnel syndrome, which involves compression of the median nerve. Numbness in the thumb, index, and middle fingers that worsens at night is a classic presentation of this condition.

Question 5

Which clinical finding best differentiates a meniscal tear from a ligamentous injury of the knee?

Accepted Answer

Joint line tenderness with a positive McMurray test

Answer

Joint line tenderness combined with a positive McMurray test (pain and/or clicking with tibial rotation during knee extension) is highly suggestive of a meniscal tear, helping differentiate it from ligamentous injuries.

NATA-BOC Test Practice Test

NATA-BOC Test Practice Test

NATA-BOC Clinical Evaluation and Diagnosis 2