Short-term plastic venous catheterization of superficial arm veins is now in routine use. The catheter should be observed daily for signs of local inflammation. It should be removed if a local reaction develops in the vein and in any case it should be removed in 48 hours. If further intravenous therapy is necessary, a new catheter may be inserted in a new vein. Serious septic complications can occur if these rules are not followed. The steel intravenous needles with the anchoring flange (butterflyneedle) is less likely to be associated with phlebitis and infection than the plastic. According to the symptoms, the condition is termed vascular Bi, caused by arelative excess of the pathogenic heat factors.

Clinical Manifestations
The patients usually experience a dull pain in the region of the involved vein. Local findings consist of induration, redness and tenderness along the course of a vein. The process may be localized, or it may involve most of the long saphenous vein and its tributaries. The inflammatory reaction generally subsides in 1 or 2 weeks; a firm cord may remain for a much longer period. Edema of the extremity and deep calf tenderness are absent unless deep thrombophlebitis has also developed. If chills and high fever develop, septic thrombophlebitis exists.

Essentials of diagnosis:
Induration, redness and tenderness along a superficial vein. No significant swelling of the extremity.

If you have any question about health or health care ,please leave message here.http://net.zoosnet.net/LR/Chatpre.aspx?id=NET39826137our expert will reply you as soon as possible.

source:http://www.tcmadvisory.com/