What is the primary purpose of using conversion factors in dimensional analysis?
To ensure the medication is safe for the patient
To determine the dosage strength of a medication
To convert between units of measurement accurately
To simplify complex calculations
The Correct Answer is C
Rationale:
A. To ensure the medication is safe for the patient: Safety is the overarching goal, but conversion factors specifically address unit accuracy rather than directly ensuring patient safety.
B. To determine the dosage strength of a medication: Dosage strength is usually provided on the label and is not calculated using conversion factors; the factors help adjust quantities between units.
C. To convert between units of measurement accurately: Conversion factors allow precise transformation from one unit to another (e.g., mg to g, mL to L), which is essential in dimensional analysis to ensure the correct dose is calculated and administered.
D. To simplify complex calculations: While they may make calculations more systematic, the primary purpose of conversion factors is accuracy in unit conversion, not simplification alone.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Rationale:
A. Documenting the administration time in the patient's chart: Accurate documentation is essential for legal and safety reasons, but it does not directly ensure the therapeutic effectiveness related to peak and trough monitoring.
B. Administering the medication at the same time each day: Consistent timing helps maintain steady drug levels but does not provide the specific data needed to evaluate peak and trough concentrations for therapeutic monitoring.
C. Ensuring the patient swallows the medication with a full glass of water: While swallowing with water aids in absorption and reduces irritation, it does not directly address the measurement of drug levels to ensure therapeutic effectiveness.
D. Scheduling blood draws to coincide with expected peak and trough times: Monitoring peak and trough levels is critical for drugs with narrow therapeutic ranges. Drawing blood at appropriate times ensures accurate measurement of maximum and minimum serum concentrations, guiding safe and effective dosing.
Correct Answer is A
Explanation
Rationale:
A. Assess the patient's ability to swallow before administration: Evaluating the patient’s swallowing ability is the first and most important step to prevent choking, aspiration, or medication errors. This assessment guides whether modifications to the route or form are necessary.
B. Change the route to intravenous administration without consulting the provider: Altering the route without provider approval can be unsafe and may lead to incorrect dosing or adverse effects. Route changes require an order and clinical judgment.
C. Crush the medication and mix it with water or applesauce: Crushing may be appropriate for some medications, but not all (e.g., extended-release or enteric-coated forms). This action should only be taken after assessing swallowing ability and verifying the medication can safely be altered.
D. Administer the medication with a large glass of juice to ensure it is swallowed: Simply giving fluids does not address dysphagia risk and may not prevent aspiration. Proper assessment and potentially alternative administration strategies are needed for safety.
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