| Popis: |
Peripherally inserted central catheters and nontunneled central venous catheters are indispensable in current medical practice, with both serving central venous access needs. They are used for infusion therapy, exchange therapy, and hemodynamic monitoring. The central venous system includes the pulmonary arteries, right side of the heart, superior vena cava, inferior vena cava, brachiocephalic veins, subclavian veins, and iliac veins. It should be noted that although these vessels and many other small veins are considered central, they are not necessarily appropriate locations for venous catheter tips. In most cases, the desired position for a central venous catheter tip is in the superior vena cava or right atrium. Present-day venous access devices are available in a wide variety of sizes, forms, and configurations designed to meet specific needs. It is important to be familiar with the range of venous access devices presently available on the market and the features that affect their selection. |
