Which lists routes of injection from fastest absorption to slowest?

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Multiple Choice

Which lists routes of injection from fastest absorption to slowest?

Explanation:
Absorption rate depends on how quickly the drug reaches the bloodstream, which is fastest when it is delivered directly into circulation. Intravenous administration places the drug into the veins, so it enters systemic circulation immediately. Intraperitoneal injections use the peritoneal surface, which has a rich blood supply, so absorption occurs quickly but not as instantly as IV. Intramuscular injections reach the bloodstream through muscle tissue, which has good but variable perfusion, so absorption is slower than IP but faster than subcutaneous tissue. Subcutaneous tissue has less blood flow, slowing uptake further. Intradermal injections go into the dermis, where vascularity is limited, making absorption the slowest of these routes. So the order from fastest to slowest is intravenous, intraperitoneal, intramuscular, subcutaneous, intradermal.

Absorption rate depends on how quickly the drug reaches the bloodstream, which is fastest when it is delivered directly into circulation. Intravenous administration places the drug into the veins, so it enters systemic circulation immediately. Intraperitoneal injections use the peritoneal surface, which has a rich blood supply, so absorption occurs quickly but not as instantly as IV. Intramuscular injections reach the bloodstream through muscle tissue, which has good but variable perfusion, so absorption is slower than IP but faster than subcutaneous tissue. Subcutaneous tissue has less blood flow, slowing uptake further. Intradermal injections go into the dermis, where vascularity is limited, making absorption the slowest of these routes. So the order from fastest to slowest is intravenous, intraperitoneal, intramuscular, subcutaneous, intradermal.

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