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39 2. Treat the injection place with at least two wipes or balls moistened with an antiseptic solution. It is advisable to use movements from the center to the periphery when processing the injection field. This method does not provide for the return of the ball with antiseptic from the treated area to contaminated (by microorganisms) surface. 3. Collect the patient’s skin at the injection place with one hand in a triangular bend base down. 4. Take the syringe with the other hand, holding the cannula needle with your index finger. 5. Insert the needle with a syringe to the skin bend by the rapid motion at an angle of 45° by 2/3 of its length (Fig.19). 6. Pull the piston over to make sure the needle does not hit the vessel. 7. Slowly inject the drug into the subcutaneous fat. 8. Remove the needle, press the ball with a skin antiseptic solution to the injection place, without taking your hand off the ball, gently massage the place of injection. Fig.19. Subcutaneous administration of the drug After the injection, it is possible formation of subcutaneous infiltrate (the introduction of unheated oil solutions), so in the injection of oil solutions is necessary to preheat the ampoule in water to 37 °C. In case of subcutaneous administration of heparin, it is necessary to keep the needle at an angle of 90°, do not check the syringe for the needle in the vessel, do not massage the injection site after injection.