When administering a parenteral medication, which of the following routes provides the most rapid absorption?
Subcutaneous
Intradermal
Intramuscular
Intravenous
The Correct Answer is D
A. Subcutaneous: The subcutaneous route involves injection into the fatty tissue beneath the skin. Absorption is slower compared with intramuscular or intravenous routes because of limited blood flow in adipose tissue, making it unsuitable for rapid onset of medication effect.
B. Intradermal: Intradermal injections are administered into the dermis layer of the skin, primarily for diagnostic purposes such as allergy testing or tuberculosis screening. Absorption is very slow due to minimal vascularization, so it does not provide rapid systemic effects.
C. Intramuscular: Intramuscular injections deliver medication into muscle tissue, which has better blood supply than subcutaneous tissue. Absorption is faster than subcutaneous or intradermal routes but slower than intravenous administration.
D. Intravenous: Intravenous administration delivers medication directly into the bloodstream, providing immediate systemic availability. This route ensures the fastest absorption and onset of action, making it ideal for emergencies or when rapid therapeutic effect is needed.
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Related Questions
Correct Answer is B
Explanation
A. 10 mL syringe: A 10 mL syringe is too large for a 1.5 mL intramuscular injection. Using a larger syringe reduces measurement accuracy and increases the risk of dosing errors.
B. 3 mL syringe: A 3 mL syringe is ideal for intramuscular injections ranging from 1 to 3 mL. It provides accurate measurement, allows safe administration, and is standard practice for most IM medications.
C. 1 mL syringe: A 1 mL syringe is too small for a 1.5 mL dose. Using it would require multiple injections, increasing patient discomfort and error risk.
D. 5 mL syringe: While a 5 mL syringe can hold the volume, it is larger than necessary. Using a smaller syringe like a 3 mL provides better accuracy and control for the 1.5 mL dose.
Correct Answer is A
Explanation
A. By developing evidence-based strategies and educational materials: The Institute for Safe Medication Practices focuses on identifying causes of medication errors and sharing evidence-based recommendations to prevent them. Through alerts, guidelines, and education, it helps healthcare professionals improve medication safety practices.
B. By manufacturing medications: ISMP does not manufacture medications. Its role is centered on safety advocacy, research, and education rather than pharmaceutical production.
C. By providing direct patient care: ISMP does not deliver hands-on patient care. Instead, it supports clinicians and organizations by promoting safer systems and practices related to medication use.
D. By enforcing legal regulations: ISMP is not a regulatory or enforcement body. While its recommendations influence policy and practice, it does not have legal authority to enforce medication safety regulations.
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