INTRACUTANEOUS INJECTIONS Meaning and
Definition
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Intracutaneous injections refer to a medical procedure that involves injecting medication or fluid just below the surface of the skin, specifically into the dermis layer. The dermis is the second layer of the skin, located beneath the epidermis. This method of administration allows for targeted delivery of a substance directly into the dermal layer.
The procedure involves using a small needle, typically between 25 and 27 gauge, to introduce the medication into the skin. Intracutaneous injections are typically given at a shallow angle, about 5-15 degrees, so that the needle is almost parallel to the skin's surface. This angle ensures that the medication is deposited accurately in the dermis.
Intracutaneous injections are commonly used for various medical purposes. They are an effective method for performing allergy testing, as substances can be introduced into the skin and observed for any reaction. These injections are also sometimes used for diagnostic purposes, such as the administration of a tuberculin test to screen for tuberculosis.
The slow absorption rate of the dermis allows for a gradual release of the medication into the bloodstream, resulting in a prolonged therapeutic effect. Additionally, intracutaneous injections minimize the risk of infection and injury to underlying structures, as the needle does not penetrate deep into the tissues.
Overall, intracutaneous injections are a valuable medical technique that enables accurate delivery of medications or substances directly into the dermis layer of the skin for diagnostic or therapeutic purposes.
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Etymology of INTRACUTANEOUS INJECTIONS
The word "intracutaneous" is derived from two Latin roots: "intra", meaning "within" or "inside", and "cutis", meaning "skin". The word "injections" comes from the Latin word "injectio", meaning "a throwing in". Therefore, the etymology of "intracutaneous injections" suggests the act of introducing a substance within or into the skin through a medical procedure.
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