Because a patient experienced diarrhea after the last dose of docetaxel 120 mg, the physician has ordered this month's dose reduced by 20%. How many mg will the new dose be?

Rationale

The new dose will be 96 mg.

To calculate the new dose after a 20% reduction from 120 mg, we first determine the amount to be subtracted: 20% of 120 mg equals 24 mg. Subtracting this from the original dose results in a new dose of 96 mg.

A (24) YOUR ANSWER

This option represents only the 20% reduction amount calculated from the original dose of 120 mg. It does not reflect the new dose after the reduction, which is what the question asks for. Therefore, 24 mg is not a valid answer.

B (96) CORRECT

This choice correctly represents the new dose after applying the 20% reduction. By subtracting 24 mg (which is 20% of the original 120 mg) from 120 mg, we arrive at 96 mg, making this the correct answer.

C (100) YOUR ANSWER

Choosing 100 mg suggests a misunderstanding of the required reduction. A 20% reduction from 120 mg should result in a decrease of 24 mg. Subtracting only 20 mg would yield a new dose of 100 mg, which is incorrect as it does not account for the full 20% reduction.

D (144) YOUR ANSWER

This option incorrectly suggests an increase in the dose rather than a reduction. It implies adding 24 mg to the original dose of 120 mg, which does not align with the physician's order to decrease the dosage due to the patient's adverse reaction.

Conclusion

The calculation for the new dose following a 20% reduction from 120 mg results in 96 mg. This is achieved by subtracting the reduction amount from the original dose. Understanding the calculation process is crucial for determining the appropriate dosage adjustments in clinical settings, ensuring patient safety and effective treatment.

Because a patient experienced diarrhea after the last dose of docetaxel 120 mg, the physician has ordered this month's dose reduced by 20%. How many mg will the new dose be?

The new dose will be 96 mg.

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