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PTCB Pharmacy Calculations Flashcards

7 cards from real Pharmacy practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 PTCB Pharmacy Calculations flashcards as text

  1. A prescription reads 'Amoxicillin 500mg TID × 10 days.' How many capsules should be dispensed?

    Answer: 30 capsules

    TID means three times daily; 3 doses/day × 10 days = 30 capsules total.

  2. A patient needs 250 mg of a drug. The available liquid is 125 mg/5 mL. How many mL should be given?

    Answer: 10 mL

    Using ratio-proportion: 250 mg ÷ 125 mg × 5 mL = 10 mL.

  3. A prescription reads '1 tab BID × 14 days.' How many tablets should be dispensed?

    Answer: 28 tablets

    BID means twice daily; 2 tablets/day × 14 days = 28 tablets.

  4. A prescription calls for 1 oz of a topical cream. How many grams should be dispensed?

    Answer: 30 g

    In pharmacy, 1 ounce is equivalent to 30 grams for solid/semi-solid preparations.

  5. What does the Roman numeral 'XIV' equal in Arabic numerals?

    Answer: 14

    XIV = X (10) + IV (4) = 14; when a smaller value precedes a larger one, it is subtracted.

  6. A prescription reads 'i cap PO QID PRN pain.' How many times per day is the maximum dose?

    Answer: Four times daily

    QID means 'quater in die,' Latin for four times daily, so maximum 4 doses per day.

  7. A 240 mL bottle contains a suspension with a concentration of 250 mg/5 mL. What is the total drug content in the bottle?

    Answer: 12,000 mg

    240 mL ÷ 5 mL × 250 mg = 48 × 250 = 12,000 mg total drug.