Which of the following methods of drug delivery are commonly considered parenteral?
1)Intravenous
2)Intramuscular
3)Paste
4)Aerosol

Question

Quizplus · Accepted Answer

Technically,the term parenteral means "besides the intestine," which implies any route of administration other than enteral.However,the parenteral route is commonly taken to mean injection of a drug.Various options are available for injection of a drug,the most common of which are the following:
Intravenous (IV): Injected directly into the vein,allowing nearly instantaneous access to the systemic circulation.Drugs can be given as a bolus,in which case the entire dose is given rapidly,leading to a sharp increase in the plasma concentration,or as a steady infusion to avoid this precipitous increase.
(IM): Injected deep into a skeletal muscle.Because the drug must be absorbed from the muscle into the systemic circulation,the drug effects occur more gradually than with intravenous injection,although typically more rapidly than by the oral route.
Subcutaneous (SC): Injected into the subcutaneous tissue beneath the epidermis and dermis.
Intraosseous (IO): Injected into the marrow of the bone.

Which of the Following Methods of Drug Delivery Are Commonly