Some of these agents are suspensions that are difficult to inject through small gauge needles, whereas others flow nicely through small gauge needles. Thirty-gauge needles are commonly used for ...

May 5, 2003 — Breast biopsy using 14-gauge needles should be the standard of ... Of the 35 biopsies, all were technically successful, eight (23%) revealed cancer, and five (17%) revealed ...

a 33-gauge needle. The 30-gauge needles, which are standard and packaged with the drugs, have an outer diameter of 0.31 mm, while the 33-gauge needles have a diameter of 0.21 mm, a 32% reduction ...

So how small is that hole? Syringe needle sizes vary from 10 gauge with a 0.106-inch diameter hole to 33 gauge with a 0.0035-inch diameter hole. This is less than twice the diameter of an average ...

The size of the barrel determines how much insulin a syringe holds, and the needle gauge determines the needle thickness. Thinner needles may be more comfortable to inject for some people.