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OPRA Medicinal Chemistry and Biopharmaceutics QUESTION #3819
Question 1
A patient is prescribed Lugol's Solution ($5\%$ iodine) $0.3$ mL three times daily. What is the total daily iodine dose?
  • $15$ mg
  • $30$ mg
  • $45$ mg✔️
  • $90$ mg
Correct Answer Explanation
$5\%$ iodine $= 5\ \text{g}/100\ \text{mL} = 50\ \text{mg/mL}$. Each dose $= 0.3 \times 50 = 15\ \text{mg}$. Three doses $= 15 \times 3 = 45\ \text{mg}$ per day.