Antegrade Versus Retrograde IV for Blood Draws

Completed · Not applicable

Conditions studied: There is no Focus on Any Specific Condition

In brief

The purpose of this study is to compare success rates of antegrade and retrograde intravenous (IV) catheters in their ability to aspirate 20 milliliter blood sample within a 2 minute time frame, 3 hours after initial insertion. Antegrade IV catheters are placed identically to conventional IV catheters, with the end of the catheter pointed toward the direction of blood flow to the heart. Retrograde catheters are placed "backwards" with the end of the catheter pointed away from the direction of venous blood flow. The hypothesis is that retrograde IVs will have a significantly higher success rate of blood draw at the 3 hour time mark without use of a proximal tourniquet.

Key facts

Study ID

NCT03533777

Run by

University of Iowa

People needed

230

Starts

2018-06-22

Expected to finish

2019-06-19

Last updated by the study team

2019-07-01

Who can join

Age: 18 and older, up to 90. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Adult patients
• English speaking
• Age 18-90
• Scheduled to undergo surgery under general anesthesia at the University of Iowa Hospitals and Clinics
• Surgery is scheduled to last at least 3 hours

You may not qualify if…

• Emergency surgery
• Previous or planned sentinel node dissection on ipsilateral arm of study IV
• Existing or planned arteriovenous fistula on ipsilateral arm of study IV
• Surgery with lateral positioning
• Surgery which involves tucking the arm with study IV
• Any additional peripheral IV catheters distal to study IV
• Non invasive blood pressure cuff placed on arm with study IV

Where it is running

• University of Iowa Hospitals and Clinics — Iowa City, Iowa, United States

Full record on ClinicalTrials.gov

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