A patient positive for syphilis is allergic to penicillin and is being treated with tetracycline for 28 days. The healthcare provider prescribes tetracycline 500 mg to be taken every six hours. The prescription is filled with 250 mg tablets. How many tablets should the patient take every day to achieve the prescribed dose?
Fill in the blank(s) with the appropriate word(s).
8
First determine the number of tablets to take for each dose by dividing the prescribed dose by the available dose, or 500 mg/250 mg = 2 tablets. Then multiply the number of times the 500 mg dose is to be taken per day by the number of tablets per dose, or 4 doses × 2 tablets = 8 tablets. The patient needs to take 8 tablets every day.
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