As a core instrument in medical procedures, the standardized use of syringes directly impacts treatment outcomes and patient safety. Mastering scientific usage techniques is not only an essential skill for medical personnel but also a key element in reducing operational risks and improving the quality of medical care. This article outlines practical syringe techniques from preparation and operation to the final step, providing a reference for clinical practice.
Precise preparation before the procedure is fundamental. The appropriate syringe size must be selected based on the drug's properties, dosage, and injection site-for example, a syringe smaller than 1ml is suitable for micro-dose administration to ensure accurate calibration, while a syringe with the corresponding capacity is required for large-volume fluid refills to avoid repeated aspiration; simultaneously, check the syringe's seal by gently pulling the plunger to confirm no leaks, observe whether the needle tip is sharp and free of barbs, and whether the inner wall of the syringe is clean and free of impurities. Before drawing medication, the doctor's order must be strictly verified, following the "three checks and seven verifications" principle to avoid errors caused by confusion regarding drug name or dosage. During drawing, keep the syringe vertical and slowly pull the plunger back to the required mark, carefully removing air from the syringe, especially for easily oxidized drugs or drugs requiring precise dosage (such as insulin). The "tap the syringe wall + gently push to remove bubbles" method can be used to ensure no air bubbles remain.
Detailed control during the injection process determines the experience and safety. Injection sites should be selected based on the drug's characteristics and the patient's condition: subcutaneous injections are often performed in areas with thicker fat layers, such as the abdomen or the outer edge of the deltoid muscle in the upper arm, with an insertion angle of approximately 30°-40°; intramuscular injections are primarily performed in the upper outer quadrant of the gluteus maximus or the vastus lateralis, with an angle typically around 90°. Before insertion, disinfect the skin in a circular pattern with iodine solution (diameter ≥5cm), wait for it to dry, tighten the skin, and quickly insert the needle to reduce tissue traction pain; when injecting the medication, the speed should be uniform and slow to avoid sudden pressure that could cause local swelling or leakage of the medication. If increased resistance is encountered or the patient complains of severe pain, the injection should be stopped immediately, and the needle position checked to rule out the possibility of accidental entry into a blood vessel or nerve contact.
Proper post-procedure care and recording are crucial. After needle removal, gently press the puncture site with a sterile cotton swab for 3-5 minutes (up to 10 minutes for patients with abnormal coagulation function), avoiding rubbing to prevent hematoma. Dispose of disposable syringes according to medical waste classification; reuse is strictly prohibited. Simultaneously, the injection time, site, dosage, and patient response must be recorded to provide traceable evidence for subsequent treatment.
The essence of syringe usage skills lies in the combination of "precision" and "humanistic care"-strict adherence to operating procedures to ensure safety is essential, while also focusing on patient comfort to optimize the experience. Only by internalizing these skills into habits can the essential requirements of medical professionalism be fulfilled in every procedure.