There are various successful subcutaneous injection techniques, and the best technique depends on the needle length you select. You can perform the injection at a 90-degree angle if your Pen Needles is 4 or 5 mm in diameter. Therefore, you can administer the injection one-handedly if you'd like without having to pinch the skin. If you're injecting into the glutes, lower back, or arm, this may be useful. Regardless of needle length, children between the ages of 2 and 6 or exceptionally thin adults may require the pinch-up technique. To prevent intramuscular injection if you choose a needle longer than 5 mm, you should pinch up the skinfold or perform the injection at a 45-degree angle.
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