500 mg of a drug is order. It is supplied in tablets of 1 g per tablet. How many tablets should be administered?

500 mg of a drug is order. It is supplied in tablets of 1 g per tablet. How many tablets should be administered? Correct Answer 0.5 tablet

Concept:-

Term

Symbol

Dosage ordered or desired dose

D

Dosage strength or supply on hand

H

Unit of measure or quantity of unit

Q

Unknown Dosage

X

Given,

  • D = 500 mg
  • H = 1gm = 1000 mg
  • X = D/H x Q
  • X = 500/1000 x 1
  • X = 0.5 mg
  • Therefore, a 0.5 mg tablet should be given.

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