Surgery Book


Radial Nerve Block

Aka: Radial Nerve Block, Regional Anesthesia of the Radial Nerve
  1. See Also
    1. Median Nerve Block
    2. Ulnar Nerve Block
  2. Indications
    1. Anesthesia of Radial Nerve distribution
  3. Precautions
    1. Avoid injecting directly into Radial Nerve
    2. Avoid injection into radial artery
  4. Preparation
    1. Needle: 27 gauge 1.5 inch
    2. Anesthetic: Lidocaine 1%: 10 ml
  5. Technique
    1. Injection site 1: Inject 3 ml
      1. Inject along lateral border of radial artery
      2. Proximal wrist crease
    2. Injection site 2: Inject 5-7 ml
      1. Reorient needle 90 deg., aiming dorsally across wrist
      2. Proximal border of snuff box toward mid-wrist
    3. Warning: Distal Paresthesias with needle with injection
      1. Indicates needle is at Radial Nerve
      2. Do not inject here!
      3. Remove needle and reposition
  6. References
    1. Pfenninger (1994) Procedures, Mosby, p. 1036-54
    2. Salam (2004) Am Fam Physician 69(4):896 [PubMed]

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