Which term denotes the process of drug entering the bloodstream?

• A. Medication absorption
• B. Solvent
• C. Standing orders
• D. Synthetic

Answer: (A)

Absorption is the process by which a drug moves from the site of administration into the bloodstream, starting the journey through the body’s systemic circulation. The rate and extent of absorption depend on the route taken (oral, sublingual, inhalation, intramuscular, etc.), the drug’s solubility and ionization, the formulation, and the blood flow to the absorption site. In EMS, some routes like intravenous administration deliver the drug directly into the bloodstream, effectively bypassing this step, while others require absorption to reach circulation. The other terms don’t describe this movement into blood: a solvent is the liquid that dissolves the drug, standing orders are protocol instructions, and synthetic refers to the origin of a substance rather than a pharmacokinetic process.