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Pharmacy Tech Calculations Exam Revision
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Avg score: 72% • Most missed: “If the dosage of a medication is 20 mg/kg/day in three divided doses, what is th…”
Key Components of Revision: Core Topics: Units of measure (mg to $g $ml to L)), dilutions, and alligations. Clinical Math: Calculating day supply, flow rates, and pediatric dosages. Methodology: Using proportion sets, cross-multiplication, and step-by-step analysis to avoid errors. Format: Often 90 questions (including 10 unscored) simulating the 1-hour 50-minute exam, with immediate results for review.  Common Practice Areas: Weight Conversions: 2.2 lbs = 1 kg Volume Conversions: $1 \text{ tsp} = 5 \text{ mL}$ 1 oz = 29.57 ml Percentage Strengths: 55 ww means 5g/100 g Also: Pharmacy... Show more
Pharmacy Tech Calculations Exam Revision
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25 Questions

1. Heparin is available in a vial labeled 20,000U/ml. How many ml are required for a 12,500U dose?

2. How many ml of water should be added to 95% ethyl alcohol to make 1 liter of a 30% ethyl alcohol solution?

3. Dextrose 25% 1000 ml was ordered, you have only Dextrose 70% solution available. How much of the Dextrose 70% solution will you use to fill this order?

4. Which of the following is an unacceptable DEA #?

5. A third party insurance program pays for only a 14 day supply of a specific medication. If the directions for use read 'i - ii tabs po q3-4h prn', what is the maximum allowed quantity to be dispensed?

6. Digoxin Elixir is available in a concentration of 0.05 mg/ml. What quantity is required for a 0.125 mg dose?

7. The directions for use for Deltasone 5 mg tablets reads: Sig: 2 tabs po bid for 3 days, 3 tabs po qd for 2 days, 2 tabs po qd for 2 days, 1 tab po qd for 1 day then 1/2 tab po qd for 1 day. How many tablets should be dispensed?

8. How much diluent do you need to add to a 4 gm vial to get a concentration of 250 mg/ml? Disregard the space the powder may occupy.

9. The concentration of an Furosemide is 40 mg/5 ml. What volume would be required for an 8 mg dose?

10. Fentanyl has a concentration of 0.05 mg/ml. How many milliliters do you need for a 800-mcg dose?

11. If 2 kg of an ointment contains 250 g of salicylic acid, what is the percentage strength of the ointments?

12. Using Young's Rule, what is the dose of drug for an eight-year-old boy weighing 50 pounds? (The normal adult dose is 300 mg.)

13. A Tagamet IV has been ordered to run at 3 drops/min. It contains 1000 mg of Tagamet in a total of 250 ml. How many milligrams of Tagamet will the patient receive per hour if the set is calibrated to deliver 10 gtts/ml?

14. 185 ml is equivalent to how many fluid ounces?

15. An IV order calls for the addition of 45 mEq of CaCO3 (Calcium Carbonate). You have a 25 ml vial of CaCo3 4.4 mEq/ml. How many ml's of this concentrate do you need to add to this IV?

16. How many units of NPH U-I 00 would be administered if the patient's noon dose was 0.25 ml?

17. If a Kg of Hydrocortisone ointment contains 45 gms of active ingredient, what is the percentage strength of the ointment?

18. You receive a prescription for Amoxicillin 75 mg QID for ten days. How many ml's do you need to fill this prescription to last the full ten days using Amoxicillin 125 mg/5 cc?

19. Benadryl is to be given PRN. How often is Benedryl to be given?

20. The pharmacy technician is asked to divide 5 liters of Nystatin suspension into an equal number of 10 ml and 15 ml unit dose dispensing cups. How many 10 ml dispensing cups can be made from this quantity of suspension?

21. What volume of a 2% erythromycin solution can be made from 15 gm of erythromycin powder?

22. 1-1/2 tablespoons is equivalent to how many ml?

23. Sig or Signa on a written prescription means:

24. The Roman numeral LII is equivalent to:

25. Consider the following Rx: Depakote 250 mg #180 Sig:1 tab po tid refill x3. If the patient pays a $7.00 copay for a 30 day supply, what quantity should be dispensed for the patient to pay no more than the $7.00 copay?

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