What is a key advantage of the intravenous route of medication administration in terms of absorption rate?
Slower Onset and longer duration of a medication's action
Onset is moderate and can be used to space out medication frequency
Route of administration is minimally invasive
Onset is rapid, and absorption into the blood is immediate, which provides an immediate response
The Correct Answer is D
A. Slower onset and longer duration of a medication's action: A slower onset with prolonged effect is characteristic of oral or some subcutaneous medications, not intravenous administration. IV administration delivers the drug directly into the bloodstream, resulting in rapid onset.
B. Onset is moderate and can be used to space out medication frequency: Moderate onset applies to routes like intramuscular or subcutaneous injections. IV administration provides almost immediate therapeutic effects, so spacing doses for gradual onset is not relevant.
C. Route of administration is minimally invasive: IV administration is invasive, requiring cannulation of a vein, and carries risks such as infection or phlebitis. Minimal invasiveness is more applicable to oral or topical routes.
D. Onset is rapid, and absorption into the blood is immediate, which provides an immediate response: Medications administered intravenously bypass absorption barriers, entering directly into systemic circulation. This allows for rapid therapeutic effects, making IV administration ideal for emergencies or situations requiring immediate pharmacologic action.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Performing the three label checks every time a medication is administered:Checking the medication label against the prescription three times—when retrieving, preparing, and before administering—ensures the right drug, dose, and route are given. This practice upholds patient safety and compliance with the “five rights” of medication administration.
B. Skipping the identification process to save time:Failing to properly identify the patient violates patient rights and increases the risk of medication errors. Proper identification using two identifiers is essential before every medication administration.
C. Ignoring time-critical medication schedules:Medications with narrow therapeutic windows require precise timing to be effective. Ignoring schedules can compromise treatment efficacy and patient safety, violating patient rights.
D. Administering medication based on verbal orders alone:Relying solely on verbal orders increases the risk of miscommunication and errors. Written or electronic orders are required to verify accuracy and maintain accountability, ensuring adherence to patient rights.
Correct Answer is A
Explanation
A. Remove the old patch before applying a new one and rotate application sites:Removing the old patch prevents drug overdose from residual medication. Rotating application sites reduces skin irritation and ensures consistent absorption, which is a key safety and efficacy guideline for transdermal therapy.
B. Apply the patch to the site of the old patch:Applying a new patch to the same site repeatedly can cause local irritation, skin breakdown, and inconsistent absorption. Rotation of sites is recommended instead.
C. Apply the patch to the waist area:The waist is not a standard or recommended site for most transdermal patches. Sites such as the upper arm, chest, or back are preferred for proper adhesion and absorption.
D. Apply the patch to an area of skin with or without hair:Hair can interfere with patch adhesion and drug absorption. Patches should be applied to clean, dry, and mostly hairless skin, or hair should be trimmed (not shaved) if necessary.
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