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Ultrasound may take the guesswork out of wrist blood draws

NCT ID NCT01189188

Knowledge-focused Sponsor: Centre Hospitalier Universitaire de Nīmes Source: ClinicalTrials.gov ↗

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Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

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Status unknown
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First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether using an ultrasound device to locate the radial artery in the wrist helps healthcare workers draw blood on the first try. 74 adults who needed an arterial blood sample took part. Half had the procedure with ultrasound guidance, half without. Researchers measured how many puncture attempts were needed and how much pain patients felt.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could make arterial blood draws faster and more comfortable for patients.
What could go wrong
This is a small, completed study with only 74 participants, so results may not apply to everyone. The benefit over standard technique may be small.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

74 people

The number who actually took part.

Start date

Aug 2010

Finished

Sep 2010

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * The subject has signed consent * The subject is affiliated with a social security system * Health status necessitates an arterial blood sample for diagnostic, prognostic or therapeutic reasons Exclusion Criteria: * The subject is participating in another study * The subject is in a study exclusion period determined by a previous study * The subject is under guardianship * The subject refuses to sign consent * Impossible to correctly inform the patient * The patient is pregnant, breastfeeding, or parturient * Allergies to one or more of the following: methyl, propylbenzoate, propylene glycol, chlorhexidine gluconate * Contraindication for an arterial puncture (at the radial artery) * Cardio-respiratory arrest

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Radial artery Ultrasonography

Contacts and locations

Locations

  • Centre Hospitalier Universitaire de Nîmes

    Nîmes, 30029, France

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