Hvernig á að lengja tíma innliggjandi nálar í bláæð

1 Puncture site For patients who can get out of bed, the lower extremity vein should not be used. It is best to use veins such as the median cubital vein and the cubital vein for the indwelling needle. 2 Operational factors 2.1 During the operation, the tube entering the vein is too short, and the physical activity is too severe, which can cause the liquid to slowly overflow from the puncture point, cause an inflammatory reaction, and greatly shorten the indwelling time. 2.2 If the model does not match, a thicker vein and a thinner venous indwelling needle should be used clinically. There is a certain blood side flow between the sample cannula and the blood vessel, which can reduce the chance of the cannula contacting the inner wall of the blood vessel. 2.3 Keep the puncture site away from the joint, fix the dressing firmly, and operate gently to reduce the back and forth movement of the trocar, so as to reduce the mechanical damage to the inner wall of the blood vessel. 3 Piston clamping site When the venous indwelling needle piston is clamped, the hydrostatic pressure in the clamped lumen will be lost. When the distal section of the extension tube is clamped, due to the relatively large liquid space, the elastic area of the extension tube is correspondingly increased, so that the intravascular pressure is greater than the inner pressure of the extension tube, thereby increasing the blood return rate and the corresponding blocking rate, resulting in a decrease in the indwelling time. . 4. Do a good job of health education and improve the patient's self-care ability 4.1 During the indwelling needle indwelling period, instruct the patient not to over-mobilize the puncture side limb, so as to avoid phlebitis and poor blood flow caused by the indwelling needle moving back and forth in the blood vessel, resulting in blood coagulation at the cannula tip. Shorten retention time. 4.2 In the process of using needle-retaining infusion, continuous hot compress to puncture the limb, especially moist heat compress is the best. Hyperthermia improves blood circulation, promotes venous return, increases the patient's metabolism and the phagocytic function of white blood cells, helps repair the wound of the blood vessel wall, and increases the patient's local anti-inflammatory ability. 5 Aseptic operation 5.1 Strictly check the packaging and validity period of the indwelling needle to ensure the quality. 5.2 The disinfection range should be more than 8cm. After 2 percent iodine tincture is disinfected, it can be deiodized twice with 75 percent alcohol, and it should be punctured or replaced after it is dry. 5.3 After the puncture is successful, use 75 percent alcohol or iodophor to sterilize and dry it, and fix it with a sterile transparent protective film against the skin. 5.4 Do not send the prolapsed part of the cannula into the blood vessel to prevent the local surface bacteria from retrograde intrusion through the open sinus between the skin and the blood vessel, resulting in bacterial phlebitis and even sepsis, thus shortening the indwelling time and increasing the patient's risk. Financial burden and nursing workload. As long as the routine nursing operations are strictly implemented and careful preventive measures are taken, it can not only ensure the safety of patients, strictly control the occurrence of complications, but also ensure the indwelling time of the indwelling needle, maximize the advantages of continuous indwelling indwelling needle, and make the receiving vein Infusion therapy patients get the maximum guarantee in terms of intravenous infusion therapy and expenses, which truly embodies the theme of "patient-centered" care.

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