Related Experiment Video
Updated: Jan 1, 2026
07:53
Author Spotlight: Improved Imaging for Neovascular Development in Congenital Heart Disease Research
Published on: April 26, 2024
927
Patient Position Affects Venodilation for Peripheral Intravenous Cannulation.
Yuki Yamagami1,2, Tomoko Inoue2
1Department of Epidemiology, School of Medicine, Nara Medical University, Japan.
Biological Research for Nursing
|December 15, 2019
Summary
The supine position increases vein size for peripheral intravenous cannulation compared to the seated position, even with difficult venous access. This finding supports using the supine position for improved cannulation success.
Area of Science:
- Vascular Access
- Medical Ultrasound
- Patient Positioning
Background:
- Larger veins improve peripheral intravenous cannulation success rates.
- Patient positioning's effect on peripheral vein size is not well understood.
Purpose of the Study:
- To investigate how seated versus supine positioning affects vein size for peripheral intravenous cannulation.
- To assess these effects before and after tourniquet application.
Main Methods:
- Ultrasound measurement of forearm vein cross-sectional area in 80 participants.
- Comparison of vein size in seated and supine positions, with and without tourniquet.
- Subgroup analysis for difficult peripheral intravenous cannulation (DPIVC).
Main Results:
- Vein cross-sectional area significantly increased in the supine position with tourniquet compared to seated.
- Vein size was larger in the supine position than seated, even with DPIVC.
Conclusions:
- The supine position enhances vein size during tourniquet application for peripheral intravenous cannulation.
- Supine positioning is recommended over seated positioning for peripheral intravenous cannulation, especially in cases of DPIVC.
Related Concept Videos
01:27Parentral Nutrition: Centeral and Peripheral Parental Nutrition
646
Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption.
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
646
01:30Venous Thrombosis IV: Nursing Management
163
Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
163
01:16Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia
1.1K
Intravenous regional anesthesia or the Bier block technique is used to anesthetize a specific limb or extremity. It uses exsanguinated or blood-drained vessels to transport local anesthetics or LAs to the peripheral nerve trunks. Lidocaine without vasoconstrictors like epinephrine is most commonly used for this technique. Other drugs used are prilocaine, ropivacaine, and chloroprocaine. Bupivacaine is not recommended for this technique due to its high cardiac toxicity.
One of the advantages of...
One of the advantages of...
1.1K
01:26Cardiac Catheterization IV: Nursing Management
569
Nursing responsibilities before cardiac catheterization include:Assess for allergies and establish baseline health status.Before cardiac catheterization, assess the patient for allergies to contrast dye. Perform a comprehensive baseline assessment, including vital signs, heart and breath sounds, and a neurovascular assessment of the extremities, noting distal pulses, skin color, and temperature. Instruct the patient to fast for 8-12 hours before the procedure. Evaluate baseline laboratory...
569
01:23Peripheral Artery Disease V: Postoperative Nursing Management
306
During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
306
01:10Pre-Procedural Guidelines for Assessing Blood Pressure
776
Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
776