Peripheral nerve blocks

Overview

Understanding peripheral nerve blocks

Different peripheral nerves serve different areas of the body. The procedure name alone does not describe the target, medication, expected duration, or reason for the block.

A block may be diagnostic, therapeutic, or part of another procedure. The clinical team should explain which nerve is being targeted and what information or benefit is expected.

Useful context

When this may be discussed

• Selected localized nerve pain
• Testing whether a particular nerve carries the pain signal
• Temporary pain control as one part of a broader treatment or rehabilitation plan

At the clinic

What the process may involve

1. 01

   Confirmation of the target, purpose, medications, allergies, and health risks

2. 02

   Positioning, skin preparation, and image or nerve-stimulator guidance when appropriate

3. 03

   Injection of local anesthetic with or without another medication

4. 04

   Observation for the expected sensory or motor effect and post-procedure instructions

Benefits, limits, and risks

Questions to discuss before treatment

• Numbness or weakness can temporarily affect safe walking, driving, or use of the limb.
• Risks include bleeding, infection, medication toxicity or reaction, prolonged numbness, nerve injury, and injury to nearby structures.
• The effect may be brief or absent, and a response does not by itself establish the complete diagnosis.