The hip should be flexed and externally rotated and a towel roll placed to facilitate an easy approach to the femoral vessels.
Reproduced with permission from: Torrey SB, Saladino RA. Arterial puncture and catheterization. In: Textbook of Pediatric Emergency Procedures, 2nd Edition, King C, Henretig FM (Eds), Lippincott Williams & Wilkins, Philadelphia, 2008. Copyright © 2008 Lippincott Williams & Wilkins.
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