Ultrasound Guidance for Radial Arterial Blood Sampling

Study Overview
=================
Brief Summary
-----------------
The investigators aim to determine if ultrasound guidance results in improved technique when drawing blood via a radial artery puncture.

Official Title
-----------------
Ultrasound Guidance for Radial Arterial Blood Sampling

Conditions
-----------------
Radial Artery, Ultrasonography

Intervention / Treatment
-----------------
* Procedure: Artery puncture with ultrasound guidance
* Procedure: Artery puncture without ultrasound guidance


Participation Criteria
=================
Eligibility Criteria
-----------------
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

Ages Eligible for Study
-----------------
Minimum Age: 18 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: With ultrasound guidance<br>In this group of patients, ultrasound guidance will be used when drawing blood from the radial artery. | Procedure: Artery puncture with ultrasound guidance<br>* Ultrasound device will be used to locate artery for puncture.<br>|
| Active Comparator: Without ultrasound guidance<br>In this group of patients, no ultrasound guidance will be used when drawing blood from the radial artery. | Procedure: Artery puncture without ultrasound guidance<br>* Blood drawn from radial artery according to conventional procedure, without ultrasound guidance.<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Is only one puncture attempt necessary to attain the radial artery? yes/no |  | maximum two hours | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The number of puncture attempts required to attain the radial artery |  | maximum two hous | 
| Visual Analog Scale score for pain felt by the patient (0.0 to 10.0) |  | Maximum two hours | 
| Visual Analog Scale score for patient satisfaction (0.0 to 10.0) |  | Maximum two hours | 
| Visual Analog Scale score for health professional satisfaction (0.0 to 10.) |  | Maximum two hours | 
| Presence / absence of a hematoma at the site of puncture |  | two hours | 
| Presence / absence of other complications |  | Two hours |