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If a medication order reads 1.5 g of a medication and the available strength is 500 mg per tablet, how many tablets should be administered?

A.

2 tablets

B.

3 tablets

C.

5 tablets

D.

4 tablets

Answer and Explanation

The Correct Answer is B

Calculation

  • Convert the Ordered Dose to Milligrams (mg)

conversion factor: 1 g = 1,000 mg.

Ordered Dose (mg) = 1.5 g x 1,000 mg/g

                  = 1,500 mg

  • Calculate the Number of Tablets

Ordered Dose (D): 1,500 mg

Available Dose (H): 500 mg

Tablets = Ordered Dose (D) / Available Dose (H)

= 1,500 mg / 500 mg

             = 3 tablets


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Related Questions

Correct Answer is C

Explanation

Calculation:

Ordered Dose = 125 mg

Available Dose = 250 mg

Available Volume = 5 mL

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

= (125 / 250) × 5

= 0.5 × 5

= 2.5 mL

Correct Answer is C

Explanation

Rationale:
A. It indicates the drug's expiration date: The expiration date shows how long the medication remains effective, but it does not guide dosing or administration amounts.

B. It provides information on the drug's side effects: Side effects are listed separately in patient information materials, not in the dosage strength section of the label.

C. It guides the exact amount to be administered: Dosage strength specifies the amount of active drug per unit, such as milligrams per tablet or milliliters per liquid. This information is essential for calculating and administering the correct dose to ensure therapeutic effectiveness and patient safety.

D. Lists the inactive ingredients: Inactive ingredients are important for identifying potential allergens but do not inform the nurse about the correct dose to give the patient.

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