Intravenous indwelling needle method

When suffering from some diseases, intravenous indwelling needle method is generally used to leave a needle in the vein, so that the patient does not need to be given an injection every time an infusion is performed. After a patient has an intravenous catheter inserted, prevention and care must be taken at the site to ensure the patient's safety and avoid complications.

Intravenous cannula method

Select Vessel:

Choose areas that are thick, straight, elastic, and have abundant blood flow, and avoid venous valves and joints.

Disinfect the skin:

The disinfection range is 8*8cm.

Apply a tourniquet:

10cm above the disinfection range, with appropriate tightness, not more than 2 minutes

Removing the needle cap

Loosen the needle core: remove the needle cap vertically upward, loosen the needle core left and right, connect the scalp needle, and exhaust the air.

puncture:

Pull the skin tight, pierce the vein directly, and insert the needle at 15-30 degrees. Insert the needle slowly, and then advance the needle 0.2cm after seeing blood return.

Needle core:

Hold the needle holder with one hand and withdraw the needle core with the other hand, insert the catheter completely into the vein, then loosen the tourniquet and adjust the drip rate.

Tube sealing and care:

Use a sterile transparent patch to fix it around the puncture point. Keep the puncture point clean and dry. Replace the transparent sticker every 3-5 days. In summer, replace it every 2 days. Replace it in time if it is not sticky or contaminated.

Record:

Attach a label to the venous puncture site, signing the puncture date, operator's name, etc. The catheter placement status and the name, dosage, and usage of special medications should be recorded daily.

Precautions

1. When using an intravenous catheter, the aseptic technical operating procedures must be strictly followed.

2. Closely observe changes in the patient's vital signs and local conditions. Before and after each infusion, check the puncture site and the direction of the vein for redness or swelling, and ask the patient whether he or she has any pain or discomfort. If there are any abnormal conditions, the catheter should be removed promptly and appropriate treatment should be given. For those who still need infusion, the limb should be replaced and punctured again.

3. The limbs with intravenous catheters should be properly fixed, and the movement of the limbs should be minimized to avoid getting them wet. If you need to wash your face or take a bath, wrap the area with plastic wrap. For patients who can walk, intravenous needles should be avoided in the lower limbs to prevent blood from returning due to gravity and clogging the catheter.

4. Draw blood before each infusion and then flush the catheter with sterile saline. If there is no blood return and there is resistance to flushing, the catheter of the intravenous needle should be considered to be blocked. At this time, the intravenous needle should be removed. Remember not to push the syringe hard to avoid pushing the coagulated thrombus into the blood vessel and causing embolism.