For median nerve stimulation, where is the cathode placed?

The correct placement of the cathode for median nerve stimulation is between the tendons of the palmaris longus and flexor carpi radialis muscles. This location is significant because it allows for optimal stimulation of the median nerve, which runs deep to these tendons at the wrist. Proper placement is crucial for achieving a strong and stable response when performing intraoperative monitoring, as it helps ensure that the electrical stimulus effectively stimulates the nerve fibers.

In this specific area, the cathode's position is usually held close to the nerve, maximizing the efficiency of the electrical stimulation. This is important during surgical procedures where monitoring the function of the median nerve is necessary to prevent postoperative complications and ensure the integrity of neurological function.

The incorrect choices either suggest placement that is less effective for stimulating the median nerve or improperly associate the cathode with other anatomical landmarks that do not target the nerve effectively. Maintaining precise cathode placement enhances signal clarity and reliability during nerve monitoring.