A prescription states "Take 2 tsp q.i.d.,dispense 20 doses." What volume,in mL,should be dispensed?

Rationale

200 mL should be dispensed based on the prescription.

To determine the volume to be dispensed, we first calculate the total amount of medication needed by multiplying the dosage by the frequency and the number of doses: 2 teaspoons (tsp) taken four times a day (q.i.d.) over 5 days (total of 20 doses) results in 40 teaspoons, which converts to 200 mL.

A (120) YOUR ANSWER

This option is incorrect because 120 mL underestimates the total volume required. The calculation of 2 tsp taken 20 times (totaling 40 tsp) far exceeds this volume, indicating a miscalculation in the dosage or frequency.

B (200) CORRECT

This is the correct choice. Each dose of 2 tsp, when multiplied by the 20 doses prescribed, totals 40 tsp. Converting 40 tsp into milliliters (1 tsp equals approximately 5 mL) gives us 200 mL, which matches the required amount.

C (240) YOUR ANSWER

Selecting 240 mL is incorrect as it overestimates the volume needed. The calculation shows that only 40 tsp are necessary, and converting this to milliliters results in 200 mL, not 240 mL.

D (800) YOUR ANSWER

This choice is also incorrect. Dispensing 800 mL significantly exceeds the required amount. The total of 40 tsp converts to only 200 mL, demonstrating a serious miscalculation if one believes a larger volume is necessary.

Conclusion

In summary, to accurately dispense medication as per the prescription, one must calculate the total volume needed by considering the dosage, frequency, and total number of doses. In this case, the correct volume to dispense is 200 mL, derived from the total of 40 teaspoons required for the 20 doses prescribed.

A prescription states "Take 2 tsp q.i.d.,dispense 20 doses." What volume,in mL,should be dispensed?

200 mL should be dispensed based on the prescription.

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