Which statement best describes a parenteral route?

Which statement best describes a parenteral route?

• A. Bypasses the GI tract; examples include IV, IM, subcutaneous
• B. Uses the GI tract via oral
• C. Involves inhalation
• D. Is delivered by mouth

Answer: (A)

Parenteral administration refers to delivering medication outside the GI tract. This includes methods like injections—intravenous, intramuscular, and subcutaneous—where the drug enters the body directly rather than through the digestive system. Bypassing the GI tract can lead to rapid effects and avoids first-pass metabolism by the liver, which matters for drugs sensitive to such metabolism. The statement that best describes this is the one noting that parenteral routes bypass the GI tract and include IV, IM, and subcutaneous administration. In contrast, using the GI tract via oral, delivering by mouth, or inhalation describe enteral or respiratory routes, not parenteral.

Parenteral administration refers to delivering medication outside the GI tract. This includes methods like injections—intravenous, intramuscular, and subcutaneous—where the drug enters the body directly rather than through the digestive system. Bypassing the GI tract can lead to rapid effects and avoids first-pass metabolism by the liver, which matters for drugs sensitive to such metabolism.

The statement that best describes this is the one noting that parenteral routes bypass the GI tract and include IV, IM, and subcutaneous administration. In contrast, using the GI tract via oral, delivering by mouth, or inhalation describe enteral or respiratory routes, not parenteral.