Imagine a handout that says your problem is "just one nerve." The phrase sounds small, and a reader may sign more quickly because of it. Check the phrase against what a published source says.
A form that uses the word mononeuropathy leaves open which nerve, if any, is involved in your case, and that is a question for your clinician. For general context, a general guide to pain management is a place to start.
What the definition says and leaves out
The Cleveland Clinic says providers may classify peripheral neuropathy as mononeuropathy, which it describes this way: it affects one nerve. That is the whole definition. It says nothing about which nerve, how it was found, or what a treatment will do.
"One nerve" in a handout and in a consent form
A handout that says "one nerve" invites you to treat the problem as simple. A consent form should be more specific. Look for the name of the nerve, the side of the body, and the procedure planned for it. If a nerve block is offered, an overview of nerve blocks explains how that procedure is described.
When the nerve is not named
A form can use the word mononeuropathy without naming the nerve. If yours does, ask which nerve is meant and where in the record that is written down. A plain-language page on peripheral neuropathy shows how this term fits inside the wider condition, which helps when a form uses both words.
What to have written down before you sign
Ask for the nerve's name, the diagnosis in one consistent phrase, and the planned procedure written on the same page. Then ask how the clinic will know whether the plan worked, and have that in writing too. A pain management information center offers background if you want to look up other terms first. If any of the three is missing, ask the office to add it before you sign.