Which statement best describes subcutaneous injection technique?

Which statement best describes subcutaneous injection technique?

• A. Aspiration is not necessary, as it is rare to inject into a blood vessel.
• B. Hold the skin taut at the site of the injection to compress the subcutaneous tissue.
• C. All subcutaneous injection sites can be massaged, with the exception of those for insulin.
• D. Best practice is not to aspirate for all subcutaneous injections, except for heparin.

Answer: (A)

Subcutaneous injections deliver medication into tissue just beneath the skin, where there are far fewer and smaller blood vessels than in muscle. Because of this low vascularity, entering a blood vessel during a subcutaneous injection is rare, so routinely aspirating the syringe to check for blood offers little safety benefit and can cause unnecessary tissue trauma and delay. Therefore, not performing aspiration is the best practice for subcutaneous injections. Focus on proper techniques for staying within the subcutaneous layer (appropriate needle angle and site selection) and follow medication-specific care (some drugs require not massaging the site, and certain anticoagulants have their own cautions).

Subcutaneous injections deliver medication into tissue just beneath the skin, where there are far fewer and smaller blood vessels than in muscle. Because of this low vascularity, entering a blood vessel during a subcutaneous injection is rare, so routinely aspirating the syringe to check for blood offers little safety benefit and can cause unnecessary tissue trauma and delay. Therefore, not performing aspiration is the best practice for subcutaneous injections. Focus on proper techniques for staying within the subcutaneous layer (appropriate needle angle and site selection) and follow medication-specific care (some drugs require not massaging the site, and certain anticoagulants have their own cautions).