ARRT Patient Care Practice Exam

When caring for a patient with an IV line, where should the medication be positioned?

1. 18 to 20 inches above the level of the vein

2. 18 to 20 inches below the level of the vein

3. 28 to 30 inches above the level of the vein

4. 28 to 30 inches below the level of the vein

The correct answer is: 28 to 30 inches below the level of the vein

The correct positioning of medications for intravenous (IV) administration is crucial for ensuring proper flow and effectiveness. Medications and fluids administered via IV should be positioned above the level of the patient's vein. This elevation uses gravity to facilitate flow into the patient's circulation. Specifically, placing the IV bag or medication approximately 18 to 20 inches above the level of the vein allows for adequate hydrostatic pressure to ensure that the medication infuses appropriately into the patient's bloodstream. Medications positioned below the level of the vein can lead to complications such as backflow or difficulty in infusion due to inadequate pressure, which can potentially impede or stop the flow altogether. This knowledge is essential in maintaining the integrity of the IV therapy and ensuring a smooth and effective delivery of medications.