ATI TEAS (Test of Essential Academic Skills) Version 7MathematicsHard
A patient is prescribed a medication for 14 days. The dosage is 2 tablets, 3 times a day. If each tablet contains 250 mg of the active ingredient, how many grams of the active ingredient will the patient consume over the entire course of treatment?
- A21 grams
- B42 grams
- C14 grams
- D7 grams
Show answer & explanationAnswer & explanation
Correct answer: A. 21 grams
First, calculate the daily dosage in mg: 2 tablets/dose * 3 doses/day * 250 mg/tablet = 6 * 250 mg = 1500 mg/day. Then, calculate the total dosage over 14 days: 1500 mg/day * 14 days = 21,000 mg. Finally, convert milligrams to grams: 21,000 mg / 1000 mg/gram = 21 grams.
Why the other options are wrong
- B. This suggests a multiplication error, perhaps multiplying by 2 instead of 1.
- C. This answer might result from miscalculating the daily dose or the total duration.
- D. This results from a division error or incorrect unit conversion at the end, possibly dividing by 3000 instead of 1000.
Total Medication Consumption (Grams)
Calculating the total amount of active ingredient consumed over a treatment period, involving daily dosage, duration, and unit conversion.
- Calculate daily intake in mg (tablets per dose * doses per day * mg per tablet).
- Calculate total mg over the treatment period (daily mg * duration in days).
- Convert total mg to grams (total mg / 1000).
Memory trick: Tabs per dose, times doses per day, times days, then convert to grams, hooray!