The Smiths Medical 4042LH is an arterial line blood gas sampling kit that is designed for ease of use and patient comfort. This kit includes a 3mL syringe with a luer lock for secure and easy connection. The syringe is pre-filled with 7IU of dry heparin gas lyte, which helps to prevent clotting and ensures accurate blood gas analysis. This kit is designed for single use and is sterile to ensure patient safety. Each case comes with 200 kits, making it a cost-effective choice for medical facilities.