Which of the following is a parenteral route of administration?

Rationale

Subcutaneous is a parenteral route of administration.

Parenteral administration refers to delivering medication directly into the body via injections, bypassing the gastrointestinal tract. Subcutaneous administration involves injecting substances into the layer of fat beneath the skin, making it a valid parenteral route.

A (Subcutaneous) CORRECT

Subcutaneous injection is considered a parenteral route of administration as it involves delivering medication directly into the subcutaneous tissue. This method allows for faster absorption into the bloodstream compared to non-parenteral routes, making it suitable for various medications, including insulin and vaccines.

B (Rectal) YOUR ANSWER

Rectal administration is not classified as a parenteral route; instead, it is a form of enteral administration. This route involves delivering medication through the rectum, where it can be absorbed, but it still utilizes the gastrointestinal tract, distinguishing it from true parenteral methods.

C (Oral) YOUR ANSWER

Oral administration is another enteral route, wherein medications are taken by mouth and absorbed through the digestive system. This method relies on the gastrointestinal tract, making it fundamentally different from parenteral routes which deliver medication directly into the body.

D (Sublingual) YOUR ANSWER

Sublingual administration involves placing medication under the tongue for absorption through mucous membranes. While it bypasses the digestive system, it is still not classified as parenteral since it does not involve injections or direct tissue entry.

Conclusion

Parenteral routes of administration, like subcutaneous injection, are characterized by delivering medications directly into the body, avoiding the gastrointestinal tract entirely. In contrast, oral, rectal, and sublingual methods involve varying degrees of gastrointestinal interaction, which excludes them from being classified as parenteral routes. Understanding these distinctions is crucial for effective medication delivery and patient care.

Which of the following is a parenteral route of administration?

Subcutaneous is a parenteral route of administration.

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