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Peripheral Nerve Block


A peripheral nerve block is anesthesia medicine given to numb a part of your body. You may not be able to feel pain in the peripheral nerve block area for about 4 to 18 hours. Until you have full feeling back, you are at risk for falls and injury. Be careful not to bump the numbed body part.


Call 911 if:

  • You have any of the following signs of a heart attack:
    • Squeezing, pressure, or pain in your chest that lasts longer than 5 minutes or returns
    • Discomfort or pain in your back, neck, jaw, stomach, or arm
    • Trouble breathing
    • Nausea or vomiting
    • Lightheadedness or a sudden cold sweat, especially with chest pain or trouble breathing
  • You have trouble breathing.
  • You have a seizure.

Seek care immediately if:

  • You develop swelling or hives.
  • You have a severe headache or muscle twitching that does not go away.
  • You have nausea or are vomiting.

Contact your healthcare provider if:

  • You have a fever.
  • You feel faint.
  • You have questions or concerns about peripheral nerve blocks.


  • Change positions often. This will keep you from putting pressure on the area.
  • Prop the area or surround it with pillows while you sleep. This will keep you from rolling over onto the area while you sleep. It will also keep you from putting pressure on the area.
  • Protect the area from injury. Move slowly and carefully. Do not touch anything that might be hot. You might not feel the skin burn until it is severe. Protect the area in hot and cold weather.

Follow up with your healthcare provider as directed:

Write down your questions so you remember to ask them during your visits.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.