What Are The Methods Of Injection Needle

There are several ways of injection: ① intradermal injection. Small dosage, often used in various allergy tests, vaccination and local anesthesia. ② Subcutaneous injection. It is often used for vaccination and vaccination, local anesthesia and injection of certain drugs. Irritating drugs should not be injected subcutaneously. Subcutaneous fluids may also be used in a few patients with cardiac insufficiency or severe dehydration. ③ Intramuscular injection. Various irritant drugs can be injected. Generally 2.5 ~ 3cm into the needle. Gluteus MAXIMUS MUSCLE IS USED MOST, FROM GLUTEUS CLEFT APEX LEFT OR RIGHT SIDE DRAWS ONE HORIZONTAL LINE, MAKE ONE PERPENDICULAR BISECTOR FROM ILIAC CREST APOGEE NEXT, OUTSIDE TOP 1/4 PLACE IS INJECTION SITE. When injecting, the muscles are relaxed, the needle is entered and pulled out quickly, and the medicine is pushed slowly to relieve the pain. (4) Intravenous injection. It is often used in patients with acute illness to achieve rapid curative effect. In addition to the injection of drugs, contrast media can also be injected to aid diagnosis. Intravenous injection requires strict aseptic technique. ⑤ Intravenous drip. Can be used for the input of drugs, nutrient solution, blood and its preparations, can also replenish blood volume, maintain acid-base, water and electricity balance, etc. In order to avoid superficial vein embolism caused by prolonged infusion, intravenous drip can be performed after cutting or puncturing the deep vein, which can last for a long time and avoid daily puncture. ⑥ Arterial injection. The purpose of rapid infusion of some kind of concentrated medicine and blood into the arteries is to quickly replenish blood volume, resist shock, improve coronary perfusion flow and fight tumor. Antitumor agents can be injected so that the drug reaches the tumor quickly and completely. Infusion of dialysate and sorbent to treat renal failure, hepatic coma, hyperlipidemia. Contrast media can also be quickly injected into the arteries for cerebrovascular angiography, spinal angiography, renal angiography, left heart or coronary angiography. ⑦ Intracardiac injection. A drug is injected into the chamber of the ventricle to restore the heartbeat. It is often used in conjunction with cardiac massage. There are two methods of injection: extrathoracic and intrathoracic (applied after thoracotomy). Commonly used drugs are epinephrine, procaine amide, lidocaine, atropine, etc. ⑧ intraluminal injection. The drug is injected into each body cavity for treatment. Commonly used are intraventricular injection, intrathecal injection, pleural injection, intraperitoneal injection, intra-articular injection and so on.

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