Pharm II - Module 5 - Pharmacy Calculations

Which of the following patient characteristics is the most accurate in determining a patient dosage?

• Age

• Weight

• Gender

• Height

A provider requests 60 mL of prednisone (Deltasone). Available is prednisone syringes 15 mg/5 mL. How many syringes should the pharmacy technician prepare to dispense the requested amount?

• 4 syringes

• 12 syringes

• 10 syringes

• 8 syringes

The adult dose of a medication is 430 mg. Using Clark's rule, which of the following amounts of this medication should a pharmacy technician prepare for a child who is 4 years old and weighs 34 lb?

• 107.5 mg

• 44.3 mg

• 137.6 mg

• 97.5 mg

Which of the following represents the equation below?

a x d = c x b

• a/d = c/b

• a/b = c/d

• d/c = a/b

• d/b = a/c

Which of the following abbreviations represents 25 mL of potassium in 100 mL of liquid?

• % w/v

• % w/w

• %v/v

• %v/w

When enlarging formulas, which of the following is true regarding the ratio?

• The number is always equal to 1.

• The number is always less than 1.

• The number is always written as a percent.

• The number is always greater than 1.

A pharmacy technician receives a prescription for nifedipine (Procardia) 0.2% cream 30 g as needed for pain. The recipe in the pharmacy is for a 45 g container and has 0.09 g of nifedipine powder and 45 g of petrolatum. Which of the following amounts of nifedipine should the technician measure out for the prescription?

• 0.09 g

• 0.06 g

• 0.03 g

• 0.002 g

A provider requests 100 mL of 35% benzoic acid solution. The pharmacy has a 65% benzoic acid solution available. A pharmacy technician will require which of the following quantities of 65% benzoic acid solution to make the requested amount?

• 53.8 mL

• 85.7 mL

• 14.3 mL

• 46.2 mL

An adult dose of a medication is 250 mg. Using Young's rule, which of the following amounts should a pharmacy technician prepare for a child who is 3 years old and weighs 18 lb?

• 50 mg

• 125 mg

• 23 mg

• 76 mg

A prescription for a 120-puff inhaler includes directions to inhale 2 puffs po bid. Which of the following is the number of days the inhaler supply will last?

• 15 days

• 30 days

• 60 days

• 90 days