AKT-1219

A 56-year-old man presents with a persistent cough. He reports no other health concerns and is not taking any regular medications. During the consultation, he requests a brief examination of his toenail, which has recently changed in appearance without any known cause. Specifically, the nail on his right big toe is thickened and yellowed at the outer edge. Although he experiences no discomfort or other symptoms, he is curious about the cause of this change.

What initial management approach would you recommend in this scenario?