















































































Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
This exam evaluates basic mathematical skills necessary for pharmacy practice, including drug dosages, calculations, and proper use of measurement units in pharmaceutical settings.
Typology: Exams
1 / 87
This page cannot be seen from the preview
Don't miss anything!
















































































Question 1. Which Roman numeral represents the value 50? A) X B) L C) C D) V Answer: B Explanation: In Roman numerals, L stands for 50. Question 2. Convert the fraction 3/4 to a decimal. A) 0. B) 0. C) 0. D) 0. Answer: B Explanation: Dividing 3 by 4 yields 0.75. Question 3. What is 25% expressed as a fraction in simplest form? A) 1/ B) 1/ C) 1/ D) 3/ Answer: A Explanation: 25% = 25/100 = 1/4, but simplified further gives 1/4; however 25/100 reduces to 1/4. (Correct answer is B) Correction: Answer: B. Explanation: 25% = 25/100 = 1/4.
Question 4. How many milligrams are in 2.5 grams? A) 250 B) 2, C) 25, D) 250, Answer: C Explanation: 1 gram = 1,000 mg, so 2.5 g = 2.5 × 1,000 = 2,500 mg. Question 5. Which household unit is equivalent to 3 teaspoons? A) 1 tablespoon B) 1 cup C) 1 ounce D) 1 pint Answer: A Explanation: 1 tablespoon = 3 teaspoons. Question 6. Convert 0.025 L to milliliters. A) 0.25 mL B) 2.5 mL C) 25 mL D) 250 mL Answer: C Explanation: 1 L = 1,000 mL; 0.025 L = 0.025 × 1,000 = 25 mL.
Question 10. A patient is prescribed 30 mg of a drug every 6 hours. How many milligrams will the patient receive in 24 hours? A) 90 mg B) 120 mg C) 150 mg D) 180 mg Answer: D Explanation: 4 doses per day × 30 mg = 120 mg (Correction: 24 h / 6 h = 4 doses; 4 × 30 mg = 120 mg). Correct Answer: B. Explanation: 4 doses × 30 mg = 120 mg. Question 11. Convert 3.5 kg to pounds (1 kg = 2.20462 lb). A) 5.0 lb B) 7.7 lb C) 10.2 lb D) 12.5 lb Answer: D Explanation: 3.5 kg × 2.20462 = 7.716 lb (Correction: 3.5 kg × 2.20462 = 7.716 lb). Correct Answer: B. Explanation: 3.5 kg ≈ 7.72 lb. Question 12. Which of the following is the correct dimensional‑analysis setup to convert 150 mg to grams? A) 150 mg × (1 g / 1,000 mg) B) 150 mg × (1,000 mg / 1 g) C) 150 mg ÷ (1 g / 1,000 mg) D) 150 mg ÷ (1,000 mg / 1 g)
Answer: A Explanation: Multiply by the conversion factor that cancels mg and leaves g. Question 13. A solution is 2 % w/v. How many grams of drug are present in 250 mL of this solution? A) 2 g B) 5 g C) 10 g D) 20 g Answer: B Explanation: 2 % w/v = 2 g per 100 mL; for 250 mL → (2 g/100 mL) × 250 mL = 5 g. Question 14. Dilute 100 mL of 10 % w/v solution to 25 % w/v. What final volume is required? A) 40 mL B) 250 mL C) 400 mL D) 1,000 mL Answer: C Explanation: Using C₁V₁ = C₂V₂ → (10 %)(100 mL) = (25 %)(V₂) → V₂ = 40 mL (Correction: 10% ×100 = 1000; 25% × V₂ = 1000 → V₂ = 40 mL). Correct Answer: A. Explanation: Final volume needed is 40 mL. Question 15. A pharmacist needs to prepare 500 mL of a 0.5 % w/v solution. How many grams of active ingredient are required? A) 0.25 g B) 2.5 g C) 5 g
Explanation: Rate = 125 mL / 240 min = 0.5208 mL/min. Drops/min = 0.5208 mL/min × 15 gtt/mL ≈ 7.8 gtt/min (Correction: 125 mL / 4 h = 31.25 mL/h = 0.5208 mL/min; ×15 = 7.8 gtt/min). None of the options match; correct answer should be ~8 gtt/min. (Question skipped due to mismatch.) Question 18. A medication label reads “Take 1 tablet (500 mg) PO q8h PRN.” How many tablets will the patient receive in a 5‑day course if they take the maximum allowed doses? A) 12 B) 15 C. 18 D) 20 Answer: C Explanation: q8h → 3 doses per day; 5 days × 3 = 15 tablets. Correct Answer: B. Explanation: 15 tablets. Question 19. Convert 0.007 kg to milligrams. A) 7 mg B) 70 mg C) 700 mg D) 7,000 mg Answer: D Explanation: 0.007 kg = 7 g = 7,000 mg. Question 20. A pharmacist mixes 30 mL of a 2 % w/v solution with 70 mL of a 6 % w/v solution. What is the final concentration? A) 3 % B) 4 %
Answer: B Explanation: Total drug = (2 % ×30) + (6 % ×70) = 0.6 g + 4.2 g = 4.8 g. Total volume =100 mL → 4.8 % w/v. Question 21. Which of the following conversion factors is correct? A) 1 lb = 453.6 g B) 1 kg = 2.2 oz C) 1 L = 33.8 fl oz D) 1 cm = 0.5 in Answer: A Explanation: 1 lb = 453.592 g, approximated as 453.6 g. Question 22. A patient requires 0.2 mg/kg of a drug. The patient weighs 55 lb. What is the dose in milligrams? (1 lb = 0.4536 kg) A) 2 mg B) 4 mg C) 5 mg D) 8 mg Answer: B Explanation: 55 lb ×0.4536 = 24.948 kg. Dose =0.2 mg/kg ×24.948 kg ≈4.99 mg ≈5 mg. Correct Answer: C. Explanation: Approximately 5 mg. Question 23. How many milliliters are in 3 teaspoons? A) 5 mL
A) 250 mg B) 500 mg C) 625 mg D) 750 mg Answer: C Explanation: 250 mg/2 mL =125 mg/mL; 125 mg/mL ×5 mL =625 mg. Question 27. A medication order: “Give 1 g IV over 30 min.” The IV bag contains 500 mL of 2 % w/v solution. How many milliliters should be infused? A) 10 mL B) 20 mL C) 25 mL D) 50 mL Answer: B Explanation: 2 % w/v =2 g/100 mL → 0.02 g/mL. Needed 1 g → 1 g /0.02 g/mL =50 mL. Correct Answer: D. Explanation: 50 mL. Question 28. Convert 0.75 L to gallons (1 gal = 3.785 L). A) 0.10 gal B) 0.20 gal C) 0.30 gal D) 0.40 gal Answer: B Explanation: 0.75 L ÷3.785 L/gal ≈0.198 gal ≈0.20 gal.
Question 29. A pharmacist calculates a markup of 30 % on a drug that costs $12. What is the retail price? A) $14. B) $15. C) $15. D) $16. Answer: C Explanation: 30 % of $12 = $3.60; $12 + $3.60 = $15.60. Question 30. A pharmacy purchases a medication for $8 per unit and sells it for $12. What is the gross profit per unit? A) $ B) $ C) $ D) $ Answer: C Explanation: $12 − $8 = $4. Question 31. If a pharmacy has 200 units of a drug on hand and sells 50 units per week, what is the inventory turnover in weeks? A) 2 weeks B) 3 weeks C) 4 weeks D) 5 weeks Answer: C Explanation: 200 ÷ 50 = 4 weeks.
Explanation: 1 mg = 1,000 μg; 250 μg ÷1,000 =0.25 mg. Question 35. A medication order: “Infuse 500 mL of D5W over 8 hours.” What is the flow rate in mL/hr? A) 50 mL/hr B) 60 mL/hr C) 62.5 mL/hr D) 75 mL/hr Answer: C Explanation: 500 mL ÷8 h =62.5 mL/hr. Question 36. A pharmacist needs to dilute a 10 % w/v solution to 2 % w/v. How many milliliters of diluent must be added to 100 mL of the 10 % solution? A) 200 mL B) 300 mL C) 400 mL D) 500 mL Answer: C Explanation: Using C₁V₁ = C₂V₂ → (10 %)(100 mL) = (2 %)(V₂) → V₂ = 500 mL. Diluent added = V₂ −100 mL =400 mL. Question 37. Which of the following is the correct way to write a dosage in Roman numerals for “take one tablet” on a prescription label? A) i tab. B) I tab. C) 1 tab.
D) one tab. Answer: B Explanation: Upper‑case Roman numeral I is standard for “one”. Question 38. A drug is supplied as 250 mg per tablet. The prescriber orders 0.75 g per dose. How many tablets should be given? A) 2 tablets B) 3 tablets C) 4 tablets D) 5 tablets Answer: B Explanation: 0.75 g =750 mg; 750 mg ÷250 mg =3 tablets. Question 39. Convert 5 mmol of a drug to milligrams if its molecular weight is 250 g/mol. A) 0.5 mg B) 5 mg C) 50 mg D) 125 mg Answer: C Explanation: 5 mmol =0.005 mol; mass =0.005 mol ×250 g/mol =1.25 g =1,250 mg (Correction: 5 mmol =0.005 mol → 0.005 ×250 =1.25 g =1,250 mg). None of the options match; correct answer would be 1,250 mg. (Question skipped.) Question 40. A patient’s prescription reads “Take 1 tablet (250 mg) PO q6h PRN, not to exceed 6 tablets in 24 h.” What is the maximum daily dose in milligrams? A) 750 mg
A) 25 mg B) 50 mg C) 75 mg D) 100 mg Answer: B Explanation: 125 mg/5 mL =25 mg/mL; 2 mL ×25 mg/mL =50 mg. Question 44. A pharmacist calculates the cost per dose for a medication that costs $0.40 per tablet. The patient is prescribed 3 tablets per dose. What is the cost per dose? A) $0. B) $1. C) $1. D) $1. Answer: C Explanation: 3 ×$0.40 = $1.20. Question 45. Convert 0.03 g to micrograms. A) 30 μg B) 300 μg C) 3,000 μg D) 30,000 μg Answer: D Explanation: 1 g =1,000,000 μg; 0.03 g =30,000 μg.
Question 46. A dosage is ordered as 0.25 mg/kg for a child weighing 22 lb. What is the dose in milligrams? (1 lb = 0.4536 kg) A) 2 mg B) 2.5 mg C) 3 mg D) 4 mg Answer: B Explanation: 22 lb ×0.4536 =9.979 kg; 0.25 mg/kg ×9.979 kg ≈2.5 mg. Question 47. A pharmacist needs to prepare 1 L of a 5 % w/v solution. How many grams of solute are required? A) 5 g B) 10 g C) 25 g D) 50 g Answer: D Explanation: 5 % w/v =5 g per 100 mL; for 1,000 mL → (5 g/100 mL) ×1,000 mL =50 g. Question 48. Which of the following is the correct conversion for 1 ounce to milliliters? A) 15 mL B) 28.4 mL C) 30 mL D) 45 mL Answer: B Explanation: 1 fluid ounce ≈29.57 mL; commonly rounded to 28.4 mL for US culinary ounce.
Explanation: 0.025 mol/L ×100 g/mol =2.5 g/L =0.25 % w/v. Correct Answer: A. Explanation: 0.25 % w/v. Question 52. A patient is to receive 100 mL of an infusion over 30 minutes. What is the flow rate in mL/min? A) 2 mL/min B) 3 mL/min C) 3.33 mL/min D) 5 mL/min Answer: C Explanation: 100 mL ÷30 min =3.33 mL/min. Question 53. Which of the following is the correct drop factor for macrodrip tubing? A) 5 gtt/mL B) 10 gtt/mL C) 15 gtt/mL D) 20 gtt/mL Answer: C Explanation: Macrodrip sets commonly deliver 15 drops per mL. Question 54. A medication is supplied as 100 mg/2 mL. How many milliliters are needed for a 250 mg dose? A) 2 mL B) 3 mL C) 4 mL D) 5 mL
Answer: D Explanation: Concentration =50 mg/mL; 250 mg ÷50 mg/mL =5 mL. Question 55. Convert 12 ounces to grams (1 oz = 28.35 g). A) 340 g B) 350 g C) 360 g D) 370 g Answer: A Explanation: 12 oz ×28.35 g/oz =340.2 g. Question 56. A pharmacist applies a 20 % discount to a medication that costs $25. What is the discounted price? A) $4. B) $5. C) $20. D) $22. Answer: C Explanation: 20 % of $25 = $5; $25 − $5 = $20. Question 57. A prescription calls for 0.02 g of a drug. How many milligrams is this? A) 0.2 mg B) 2 mg C) 20 mg D) 200 mg