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Subcutaneous administration is the insertion of medications beneath the skin either by injection or infusion. A subcutaneous injection is administered as a bolus into the subcutis , the layer of skin directly below the dermis and epidermis , collectively referred to as the cutis .
In medicine, infusion therapy deals with all aspects of fluid and medication infusion, via intravenous or subcutaneous application. A special infusion pump can be used for this purpose. [1] A fenestrated catheter is frequently inserted into the localized area to be treated. There are a range of delivery methods for infusion of drugs via catheter:
Intravesical infusion is into the urinary bladder. Intravitreal, through the eye. Subcutaneous (under the skin). [22] This generally takes the form of subcutaneous injection, e.g. with insulin. Skin popping is a slang term that includes subcutaneous injection, and is usually used in association with recreational drugs.
Severe reactions may result in cutaneous necrosis at the injection site, typically presenting in one of two forms: (1) those associated with intravenous infusion or (2) those related to intramuscular injection. [7]: 123–4 Intramuscular injections may produce a syndrome called livedo dermatitis. [7]: 124
Insulin pump in use Diabetic child wearing a state-of-the-art insulin pump (referred to as a "patch pump"). His waterproof device needs no one infusion set. An insulin pump is a medical device used for the administration of insulin in the treatment of diabetes mellitus, also known as continuous subcutaneous insulin therapy.
Subcutaneous injections, abbreviated as SC or sub-Q, consist of injecting a substance via a needle under the skin. [13] Absorption of the medicine from this tissue is slower than in an intramuscular injection. Since the needle does not need to penetrate to the level of the muscle, a thinner and shorter needle can be used.
An infusion pump infuses fluids, medication or nutrients into a patient's circulatory system. It is generally used intravenously, although subcutaneous, arterial and epidural infusions are occasionally used. Infusion pumps can administer fluids in ways that would be impractically expensive or unreliable if performed manually by nursing staff.
The port is the closed in two layers (subcutaneous tissue is sutured first, followed by the skin). ... high pressure infusion allowing ports are needed. [8] [9]