Which of the following is a disadvantage of parenteral drug administration?
It has a slow onset of action
It requires special equipment and training to administer
It is more expensive than other routes of administration
It is non-invasive
The Correct Answer is B
Parenteral drug administration requires special equipment and training to administer because it involves injecting drugs into the body using needles or catheters.
a. Parenteral drug administration has a rapid, not slow, onset of action.
c. The cost of parenteral drug administration can vary depending on the medication and equipment used, but it can be more expensive than other routes of administration.
d. Parenteral drug administration is invasive.
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Correct Answer is D
Explanation
Blood flow to the injection site, solubility, and size of drug molecule can all affect absorption of parenterally administered drugs. For example, drugs may be absorbed more readily if they are highly soluble in blood or if they are small enough to pass easily through capillary walls. Blood flow to the injection site can also affect absorption by altering the rate at which drugs are delivered to the absorption site.
Correct Answer is B
Explanation
Intravenous administration is a type of parenteral administration because it involves injecting drugs directly into the bloodstream using a needle or catheter.
a. Oral administration is not considered parenteral because it involves swallowing drugs and absorbing them through the gastrointestinal tract.
c. Sublingual administration is not considered parenteral because it involves placing drugs under the tongue and absorbing them through the mucous membranes.
d. Topical administration is not considered parenteral because it involves applying drugs to the skin or mucous membranes.
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