You will also need a 3.5-cm 18-gauge needle and a 3.75-cm 25-gauge or 27-gauge ... the needle should be withdrawn to prevent intraneural injection. 8 If the injection causes a subcutaneous wheal, ...

While holding the needle like a dart, slide it into the skin at a 90-degree angle: Needles for subcutaneous injections are usually short and small and should go all the way into the skin.

To determine whether needle size influences a patient's perception of pain, 50 patients requiring hormonal manipulation for prostate cancer were blindfolded and randomised to receive two goserelin ...

Needles as short as 5 mm can be used to deliver insulin reliably into the subcutaneous layer of the skin, while minimizing the risk for intramuscular and intradermal delivery.