Peripheral Venous Catheterization

Chapter 61 Peripheral Venous Catheterization






CATHETER TYPES


A variety of catheters are commercially available (Figure 61-1). The length and gauge (diameter) of the catheter to be used are dependent on the species and size of the patient, the veins available and their condition, and the needs of the patient.



Both the radius and the length of the catheter determine the maximum flow rate. A large-gauge, short catheter is needed if fluids are to be administered rapidly, such as in a severely hypovolemic patient. If a slow infusion is acceptable, then a small-gauge catheter might be appropriate. A smaller catheter-to-vein ratio is considered more “vein friendly.”


There are four general categories of intravenous access devices. They include the winged needle, over-the-needle, through-the-needle, and multilumen catheters.







CATHETER INSERTION SITE


Peripheral insertion sites include the cephalic, lateral and medial saphenous, and the auricular vein.





Sep 10, 2016 | Posted by in SMALL ANIMAL | Comments Off on Peripheral Venous Catheterization
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