When it comes to IV therapy, selecting the right catheter is crucial for patient safety, comfort, and treatment effectiveness. Let’s break down the main types: peripheral IV catheters, central venous catheters (CVCs), and midline catheters, along with common use cases and size considerations.
Peripheral IVs are the most common type of catheter, typically used for short-term treatments such as hydration, antibiotics, or pain medications. They are inserted into smaller veins, usually in the hand or forearm and come in various sizes, often measured in gauge (G). Smaller gauges like 22G or 24G are used for delicate veins or slower infusions, while larger gauges like 18G are chosen for rapid fluid delivery. To ensure smooth fluid administration, facilities often use products like the Amsino Amsafe-3 IV Administration Set or the Amsino IV Administration Set - 15 Drop Needle Injection for consistent flow rates. Accessories such as MTR Transparent Surgical Tape and MTR 2 x 2 Gauze Pads help secure the catheter and protect the insertion site.
CVCs are placed into large veins, such as the internal jugular or subclavian, and are designed for long-term use, high-volume infusions, or medications that may irritate smaller veins. These catheters can remain in place for weeks or even months, making them ideal for chemotherapy, total parenteral nutrition (TPN), or critical care. Given the higher flow rates and sterile requirements, clinicians may pair CVCs with Amsino IV Administration Set 10 Drop for controlled delivery or Amsino 8" Heplock Extension Set for convenient access. Infection prevention is a priority, so items like the MTR IV Dressing Guard are essential for site protection.
Midline catheters bridge the gap between peripheral and central lines. They are inserted into a vein in the upper arm and extend toward the shoulder but do not reach the central veins. Typically used for therapies lasting 1–4 weeks, midlines reduce the need for repeated needle sticks and lower infection risk compared to CVCs. For midline infusions, using a 60 Drop Amsino IV Administration Set can help regulate flow rates, while MTR Self Adherent Wrap offers secure and comfortable dressing without adhesives directly on the skin.
MM Medical Supply offers a full range of IV administration solutions to support each catheter type. Contact us to learn more about our I.V. Starter Kits, MTR IV Pressure Infusion Bags, and Amsino IV AMSafe PRN Connectors for easy, safe access.
