PTCB Exam PTCE Topic 1 Question 105 Discussion

Actual exam question for PTCB's PTCE exam

Question #: 105
Topic #: 1

If a physician prescribes 250 mg qid x 10 days, how many milliliters of Keflex oral suspension containing 250 mg per 5ml should be dispensed?

A75

B100

C150

D200

Show Suggested Answer

Suggested Answer: D

250ml/5ml x 4 (20ml per day)

For 10 day supply : 200

by Reed at Jan 15, 2025, 06:14 PM

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Elly

5 days ago

Hmm, let me think this through. If it's 250 mg per dose, and it's qid (four times a day) for 10 days, that's a total of 10,000 mg. Divide that by 250 mg per 5 ml, and you get... B) 100 ml. Easy peasy!

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Markus

8 days ago

Is this a trick question? 250 mg qid x 10 days, that's a lot of Keflex! I'm going with C) 150 ml.

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