What is the angle of needle insertion for intravenous fluids? 5

Many people have experienced intravenous fluids, what is the angle of needle insertion?

Generally, the angle of needle insertion of intravenous infusion is 20 degrees, and the situation you just said is that if there is no blood return, the needle is shallow and does not enter the blood vessels, and there is another situation that it enters the blood vessels first and then penetrates out, and finally enters the blood vessels. Don't be in a hurry to learn this technique, you will have experience after a few more ties.

The angle of needle insertion is usually recommended to be about 30° when venipuncture is used for infusion, which can be punctured into the vein relatively quickly and can also reduce the pain of the patient. Different patients can appropriately adjust the needle insertion angle according to the patient's condition, for example, the blood vessel elasticity of young people is better, and the superficial veins are more obvious, and the needle insertion angle can be appropriately increased, for example, it can be increased to about 45°, reducing the distance of the needle under the skin and reducing the patient's pain.

If it is an elderly person or a patient with arteriosclerosis and unclear superficial veins, considering that it is difficult to puncture, the puncture angle can be lowered, which can be more accurately punctured into the blood vessels, and can play a role in fixing the needle blood vessels, and the puncture angle can be placed at about 20°. In critically ill patients, where superficial veins are very inconspicuous or collapsed, deep venous catheterization should be considered.

Intravenous infusionWhen performing venipuncture operation, the general needle insertion angle is between 30-40°, if there is venous blood return after the needle is inserted, the angle can be lowered, and then the needle is sent into the blood vessel for a distance to fix the needle.

If the patient's blood vessels are brittle and difficult to prick, the angle of needle insertion can be lowered to about 20-30°, so that the needle can travel under the skin for an extra period of time before entering the blood vessels. If the patient's blood vessels are relatively good and the puncture is more obvious, the angle of the venipuncture needle can be raised, which can reduce the pain during puncture, reduce the shape of the needle in the subcutaneous tissue, and can effectively reduce the pain.

The angle of intravenous infusion into the needle is required to be at an angle of 5 ° with **, and the bevel of the needle is upward, piercing into the ** blood vessel, when you see the blood reflux inside the infusion strip, it indicates that the puncture is successful, and then continue to push the needle forward along the blood vessel.

After successful puncture, the top of the needle should be fixed with adhesive tape repeatedly to prevent the needle from moving left and right and slipping. If the needle slips or moves, there is a risk that the patient's infusion site will be swollen, hematoma, pain, etc., and the needle should be removed if necessary and the injection should be re-injected in another place.

The angle of the infusion is about 20 degrees. It is necessary to achieve a shot of blood return. If there is no needle to return blood, one is that it is shallow and does not enter the blood vessel, and the other is that it is punctured and leaked, and it enters the blood vessel and comes out. To be stable and ruthless, you need to practice repeatedly.

The angle of needle insertion is about 180 degrees, because the blood vessels of the human body are very small, and the length of the infusion needle is very long relative to the diameter of the blood vessels, so once there is an angle between the two, then it is very easy for the blood vessels to be penetrated, which will not only affect the infusion, but also cause some impact on the patient.

The textbook is 20 degrees. Clinically, the angle of needle insertion should be grasped according to the condition of the blood vessels. If the subcutaneous tissue is thin, the blood vessel is small, and the elasticity is poor, the needle insertion angle should be reduced, otherwise it is easy to penetrate to the opposite side; The subcutaneous tissue is thick, the elasticity of the blood vessels is good, and this kind of blood vessels are generally not visible cyan on the **, but they can be touched by the touch, and the angle of needle insertion can be appropriately increased to 30 to 40 degrees.

In order to alleviate the pain during venipuncture, in recent years, Chen's study increased the needle insertion angle between the needle and the needle during venipuncture, at an angle of about 60 °, the proportion of *** and slight pain, while the control group used the traditional needle insertion angle, about 30 ° angle, **, slight pain, there was a significant difference between the two groups, which was due to the increase of the needle insertion angle, the needle insertion speed was fast and the pain was small.

There is no unified angle for intravenous injection, just puncture the blood vessels, almost five to degrees, intradermal injection below five degrees, intramuscular injection is generally perpendicular to **, subcutaneous injection is generally between five and thirty degrees, depending on the location of **.

The needle insertion angle of venipuncture is generally about 45 degrees, and the precautions are: strict aseptic operation to prevent infection; Avoid repeated operations, fast in and out to reduce pain, local effective compression after needle removal, to avoid accidental entry into the artery.