A physical therapist is evaluating a patient with a suspected compression neuropathy of the median nerve. Which of the following findings would help confirm a diagnosis of anterior interosseous nerve syndrome over other median nerve neuropathies?

Option 1- Inability to perform an "OK" sign

Option 2- Sensory loss in the palm of the hand and lateral fingers

Option 3- Ape hand deformity

Option 4- Positive Tinel's sign at the cubital tunnel

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