Intradermal injection

A medical professional performs and intradermal (ID) injection.

Intradermal injection is the injection of a substance into the dermis, just below the epidermis. This route has the longest absorption time as compared to subcutaneous injections and intramuscular injections. As a result, it is used for sensitivity tests, like tuberculin and allergy tests, and for local anesthesia. Additionally, the body's reaction to substances is more easily visible since it is closer to the surface.[1]

Injection sites

Common injection sites include the inner surface of the forearm and the upper back, under the scapula.[1]

Equipment

Equipment include syringes calibrated in tenths and hundredths of a milliliter. The dosage given is usually less than 0.5 mL, less than given subcutaneously or intramuscularly. A 1/4" to 1/2" long and 26 or 27 gauge thick needle is used.[1]

Procedure

The angle of administration is 5 to 15 degrees, almost against the skin. With bevel (opening) side up, insert about 1/8" with entire bevel inside and inject while watching for a small wheal or blister to appear.

References

  1. 1 2 3 Taylor, C. R., Lillis, C., LeMone, P., Lynn, P. (2011) Fundamentals of nursing: The art and science of nursing care. Philadelphia: Lippincott Williams & Wilkins, page 749, 788.
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