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While performing a sub-q inject with a dull 39-30 g. insulin syringe is not going to be as unpleasant as performing an I.M. injection with a dull 23 g. syringe, the user can still take steps to ensure that ever injection is performed with a fresh, sharp needle. Due to insulin syringes being so much smaller and more fragile than their 23-25 g. counterparts, they dull much more quickly. The act of pushing an insulin syringe through a rubber stopper even one time will significantly dull the needle head.
However, since the needle head of an insulin syringe can not be removed, as they can be with larger pins, the only way to inject with a fresh needle head is by back-loading. The practice of back-loading is self-explanatory. You simply load the pin through the back end instead of loading the pin through the needle head. This is easily accomplished by using one insulin syringe (or any other syringe) to draw with and a second insulin pin for the injection.
In order to back-load, begin by getting out 2 insulin syringes and setting them in front of you. Select one as your drawing syringe and one as the injecting syringe. Load your drawing syringe as you normally would and then set it down on a table, etc. Pick up your injecting syringe and remove the back plunger. You then want to carefully squirt the contents of the loaded syringe into the back of the injecting syringe without letting any spill out the back. At that point, pick up the plunger, gently press it back into the barrel, but not fully inserting. Then, you flip the needle and wait for ALL the liquid to go to the bottom. Once it does, you may now fully insert the plunger and you are done.
Very Helpful Video On Back-Loading
However, since the needle head of an insulin syringe can not be removed, as they can be with larger pins, the only way to inject with a fresh needle head is by back-loading. The practice of back-loading is self-explanatory. You simply load the pin through the back end instead of loading the pin through the needle head. This is easily accomplished by using one insulin syringe (or any other syringe) to draw with and a second insulin pin for the injection.
In order to back-load, begin by getting out 2 insulin syringes and setting them in front of you. Select one as your drawing syringe and one as the injecting syringe. Load your drawing syringe as you normally would and then set it down on a table, etc. Pick up your injecting syringe and remove the back plunger. You then want to carefully squirt the contents of the loaded syringe into the back of the injecting syringe without letting any spill out the back. At that point, pick up the plunger, gently press it back into the barrel, but not fully inserting. Then, you flip the needle and wait for ALL the liquid to go to the bottom. Once it does, you may now fully insert the plunger and you are done.
Very Helpful Video On Back-Loading
