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BIPC Final Practice Exam

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Which sign is associated with functional leg weakness?
Correct Answer:
Hoover sign
Explanation:
Hoover sign is used to distinguish functional (non-organic) leg weakness from true neurological weakness. When you ask the patient to flex the hip of the leg being tested, you simultaneously feel the heel of the opposite leg. In a person with genuine weakness, there is little to no pressure from the contralateral leg as the tested leg is moved. If the opposite leg does press downward into the bed or you feel deliberate pushing while the patient attempts to move the weak leg, it shows the patient is capable of generating force, suggesting the weakness is functional rather than organic. This is why Hoover sign is the best indicator for functional leg weakness.

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