58. Which of the following is a parenteral route of administration?
Answer: A
Subcutaneous is a parenteral route of administration.
Parenteral routes of administration involve delivering medication directly into the body, bypassing the gastrointestinal tract. Subcutaneous injection is one such method, where medication is administered into the layer of fat beneath the skin.
A) Subcutaneous
Subcutaneous administration is indeed a parenteral route as it involves injecting medication into the tissue beneath the skin. This method allows for the absorption of medication directly into the bloodstream, making it effective for drugs that need to act quickly or cannot be taken orally.
B) Rectal
Rectal administration is not considered a parenteral route; instead, it is classified as an enteral route. Although it involves delivering medication, it still utilizes the gastrointestinal system for absorption, which differentiates it from parenteral methods.
C) Oral
Oral administration is also an enteral route as it requires the medication to be taken through the mouth and processed by the digestive system. This route contrasts with parenteral methods that allow for bypassing the GI tract entirely.
D) Sublingual
Sublingual administration, while it allows for quick absorption of medication, is still classified as an enteral route. It involves placing the drug under the tongue for absorption into the bloodstream, but it does not bypass the gastrointestinal system in the same way as parenteral routes.
Conclusion
Subcutaneous administration is the only option that qualifies as a parenteral route of administration because it delivers medication directly into the body, circumventing the digestive system. In contrast, the other options (rectal, oral, sublingual) involve the gastrointestinal tract in their absorption processes, thus they do not meet the criteria for parenteral routes.