Use ratio and proportion to solve.

A prescription is written for metoclopramide 5 mg, 1 tablet by mouth three times a day for 5 days.

How many tablets are needed for this prescription?



Answer :

Sure! Let's break down the prescription details first:

- Dosage per tablet: Each tablet has a dosage of 5 mg.
- Frequency per day: The medication is to be taken three times a day (tid means three times daily).
- Duration of the prescription: The duration for the medication is 5 days.

To find out how many tablets are needed for the entire prescription, we need to use ratio and proportion to relate the frequency and the duration.

Step-by-Step Solution:

1. Determine the number of doses per day:
- The patient needs to take the medication 3 times a day (tid).

2. Determine the total number of doses needed for the entire duration:
- Since the medication is taken 3 times a day and the prescription is for 5 days, the total number of doses is calculated by multiplying the frequency per day by the number of days.
- Total number of doses = 3 times/day × 5 days = 15 doses

3. Determine the number of tablets needed per dose:
- Each dose requires 1 tablet of 5 mg.

4. Calculate the total number of tablets required:
- Since there is 1 tablet per dose and there are 15 doses in total, you simply need 1 tablet per dose multiplied by 15 doses.
- Total tablets needed = 1 tablet/dose × 15 doses = 15 tablets

Therefore, the total number of tablets required for this prescription is 15 tablets.

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