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Calculations I: Math Basics: pharmacology practice questions

Calculations I: Math Basics is a high-yield area on the PEBC, NAPLEX, OPRA and FPGEE exams. Phartoonz has 27 exam-style Calculations I: Math Basics questions, each written to test the clinical decisions these licensing exams actually reward — mechanism of action, dosing, monitoring parameters, adverse effects, contraindications and patient counseling.

Try the sample questions below to see the style and difficulty, then practice the full set with instant feedback and progress tracking.

Sample questions

Sample 1
A pharmacist received this prescription:

Erythromycin Ethylsuccinate 200 mg/5 mL
Sig: 5 mL PO TID x 10 days

The pharmacist dispensed 4 ounces to the patient. How many days of therapy will the patient be short? 
  • 11 day
  • 22 days
  • 34 days
  • 45 days
  • 5The patient will have exactly enough medication to complete 10 days of therapy.
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Sample 2

How many milliliters of Mylanta suspension are contained in each dose of the prescription below? 

 
Belladonna Tincture 30 mL
Phenobarbital 70 mL
Mylanta susp. qs. ad 200 mL
Sig 20 mL BID
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Sample 3

If 150 capsules contain 400 mg of an active ingredient, how many milligrams of the active ingredient will 84 capsules contain? (Answer must be numeric; no units or commas; round the final answer to the nearest WHOLE number.)

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Practice all 27 Calculations I: Math Basics questions

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