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The prescription requires 2.4 g of a medication available in 600 mg tablets. Using ratio and proportion, determine the number of tablets.

A.

4 tablets

B.

5 tablets

C.

3 tablets

D.

6 tablets

Answer and Explanation

The Correct Answer is A

Calculation:

Ordered Dose = 2.4 g

Available Dose = 600 mg

  • Convert Ordered Dose to mg

Ordered Dose = 2.4 × 1000

= 2400 mg

Number of tablets = Ordered Dose / Available Dose

      = 2400 / 600

     = 4 tablets


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Related Questions

Correct Answer is D

Explanation

Calculation:

Ordered Dose = 500 mg

Available Dose = 250 mg

Available Volume = 5 mL

Volume to administer = (Ordered Dose / Available Dose) × Available Volume

= (500 / 250) × 5

= 2 × 5

= 10 mL

Correct Answer is C

Explanation

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.

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