Ultrasound vs. touch: which works better for tough blood draws?
NCT ID NCT01789801
First seen Nov 19, 2025 · Last updated May 16, 2026 · Updated 22 times
Summary
This study tested whether using ultrasound to locate the radial artery (in the wrist) makes blood draws easier for patients whose arteries are hard to feel or where previous attempts failed. 74 adults were randomly assigned to have their blood drawn either with ultrasound guidance or by touch alone. The main goal was to see if the first attempt succeeded more often with ultrasound.
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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Locations
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CHU de Nîmes - Hôpital Universitaire Carémeau
Nîmes, Gard, 30029, France
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