Which of the following is a key feature of the apothecary system that differs from the metric system?
It is based on units of 10.
It uses Roman numerals and fractions.
It is the most commonly used system in healthcare today.
It measures exclusively in milliliters.
The Correct Answer is B
A. It is based on units of 10: The metric system, not the apothecary system, is based on units of 10. This allows for easy conversion between units like grams, liters, and meters.
B. It uses Roman numerals and fractions: The apothecary system often uses Roman numerals and fractional notation (e.g., ℥ for ounces, ℨ for dram) to indicate quantities. This differs from the metric system’s decimal-based, standardized measurements and is less commonly used today due to complexity.
C. It is the most commonly used system in healthcare today: The metric system is the standard in modern healthcare for medication dosing and measurements. The apothecary system is largely historical and rarely used.
D. It measures exclusively in milliliters: Measuring exclusively in milliliters is a feature of the metric system, not the apothecary system. Apothecary measurements include units like grains, drams, and ounces rather than standardized metric volumes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Calculation:
Total Daily Insulin: 35 units
Basal Percentage: 70%
- Calculate the basal insulin dose
Basal Dose = Total Daily Insulin × Basal Percentage
Basal Dose = 35 × 0.7
Basal Dose = 24.5 units
Correct Answer is D
Explanation
Calculation:
Available Concentration: 500 mg/5 mL
Ordered Dose: 250 mg
- Calculate the volume to administer
Volume to administer = (Ordered Dose ÷ Concentration) × Volume of Concentration
Volume to administer = (250 ÷ 500) × 5
Volume to administer = 0.5 × 5
Volume to administer = 2.5 mL
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