If a drug dose is 50 mcg how many doses are contained in 0.01 g?

Rationale

There are 200 doses of 50 mcg in 0.01 g.

To determine how many doses of a drug are in a given mass, convert the mass from grams to micrograms and then divide by the dose amount. Since 0.01 g equals 10,000 mcg, dividing this by the dose of 50 mcg yields 200 doses.

A (2) YOUR ANSWER

This choice represents an incorrect calculation. If you were to divide 10,000 mcg by 50 mcg, you would not arrive at 2. Instead, 2 doses would only correspond to 100 mcg, which is far less than the available 10,000 mcg.

B (20) YOUR ANSWER

This choice underestimates the number of doses. If you calculated 20 doses, that would imply a total mass of 1,000 mcg (20 doses multiplied by 50 mcg), which is still significantly less than 10,000 mcg present in 0.01 g.

C (200) CORRECT

This choice is correct because when you convert 0.01 g to micrograms, it equals 10,000 mcg. Dividing this by the dose of 50 mcg gives 200 doses (10,000 mcg ÷ 50 mcg = 200).

D (2000) YOUR ANSWER

This choice incorrectly suggests an excessive number of doses. If you had 2000 doses of 50 mcg, that would amount to 100,000 mcg, which exceeds the total available in 0.01 g.

Conclusion

In summary, when calculating the number of doses from a given mass, it is essential to convert units correctly and perform the division accurately. The correct calculation shows that 0.01 g, equivalent to 10,000 mcg, contains 200 doses of 50 mcg each. Understanding unit conversions and arithmetic operations is crucial for accurate dosage calculations in pharmacology.

If a drug dose is 50 mcg how many doses are contained in 0.01 g?

There are 200 doses of 50 mcg in 0.01 g.

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