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Which areas the needle should be inserted to avoid damaging the sciatic nerve during an injection? A 67-year-old patient has been given a course of antibiotics by gluteal intramuscular injections after a major abdominal surgery.



A. Over the sacrospinous ligament
B. Midway between the ischial tuberosity and the lesser trochanter
C. The midpoint of the Gemelli muscles
D. Upper lateral quadrant of the gluteal region
E. Lower medial quadrant of the gluteal region
Asked by Lucy, Last updated: Jan 04, 2019

This question is part of

Block 2 Anatomy Lower Limb Sem. 1

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2 Answers

A. Daniels

A. DanielsProfessor, San Diego
Professor, San Diego

Answered on Jan 04, 2019

I am by no means an expert in the nursing field, but my best guess would be that the needle should be inserted in the upper lateral quadrant of the gluteal region, or in other words, answer D. I would think this particular patient cannot receive any injections near the actual incision site, so finding the best way to get close to without damaging this nerve is important.

The sciatic nerve, for those who don’t know, is the one that runs from the lower back into the leg. This often gets a lot of work and a lot of pain if not taken care of properly. Therefore, you want to avoid injuring this nerve when giving an intramuscular injection near it.

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John Smith

John Smith

Answered on Sep 09, 2016

Upper lateral quadrant of the gluteal region-to avoid damaging the sciatic nerve during an intramuscular injection, the clinician should insert the needle in the upper lateral quadrant of the gluteal region. the inserted needle in the lower medial quadrant may damage the pudendal and sciatic nerves. the inserted needle midway between the ischial tuberosity and the lesser trochanter may damage the sciatic and posterior femoral cutaneous nerves on the quadratus femoris. the inserted needle over the sacrospinous ligament may damage the pudendal nerve and vessels.
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