Your patient is a child weighing 45 pounds. The doctor has ordered Achromycin syrup 0.02 gm per pound q. i.d. The bottle you have on hand is labeled 125 mg per tsp. How many ml will the child receive PER DAY?

141.98 ml/day

Explanation:

The data given by the exercise is as follows:

Weight of child = 45 lbs

Dose of medication = 0.02 g / lbs four times a day

Bottle concentration = 125 mg / tbs

The question asks for the total amount of medication the child has to receive in ml per day.

One should know the conversion of tbs to ml (1 tbs = 4.93 ml approx.)

Total medication in grams this child should receive per day:

0.02 g/lbs x 45 lbs x 4 times a day = 3.6g a day = 3600 mg a day (always check which units are the most convenient)

Since 1 tsp of the medication contains 125mg:

3600 mg / 125 mg/tsp = 28.8 tsp a day

Finally, since each tsp contains approx. 4.93 ml:

28.8 tsp x 4.93 ml/tsp = 141.98 ml a day = 141.98 ml/day

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