What gauge is typically used for intradermal injections?

Intradermal injections are typically administered using a needle gauge that is fine enough to allow precise placement of the medication just under the skin. The 25-28 gauge range is commonly used because these gauges strike a balance between being thin enough to minimize discomfort while also being sturdy enough to ensure the medication is delivered accurately into the dermal layer.

Using finer gauges like 30-32 may make it difficult to deliver a sufficient volume of solution, as these needles are very thin and might become occluded if the medication is viscous. On the other hand, larger gauges, such as 18-20, are generally used for intramuscular or intravenous injections where a larger volume of medication is needed. While 22-24 gauge can also be used for various injections, they are more commonly associated with subcutaneous or intramuscular routes rather than intradermal.

Thus, the 25-28 gauge is the most appropriate choice for intradermal injections, aligning with clinical practices that prioritize patient comfort and effective delivery of the medication.