Pharmacy 102- Chapter 7 - Quiz

The pharmacy's recipe book provides a formula that yields 120 g of an ointment. You are asked to prepare a 30 g jar of the ointment. By what number do you need to multiply each ingredient to make the desired formula?

0.25 Use the formula: Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 30 g ÷ 120 g = 0.25. You must multiply each ingredient by 0.25 to get the desired quantity.

The pharmacy's recipe book provides a formula that yields 50 g of an ointment. You are asked to prepare a 20 g jar of the ointment. By what number do you need to multiply each ingredient to make the desired formula?

0.4 Use the formula: Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 20 g ÷ 50 g = 0.4. You must multiply each ingredient by 0.4 to get the desired quantity.

The pharmacy's recipe book provides a formula that yields 75 g of an ointment. You are asked to prepare a 30 g jar of the ointment. By what number do you need to multiply each ingredient to make the desired formula?

0.4 Use the formula: Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 30 g ÷ 75 g = 0.4. You must multiply each ingredient by 0.4 to get the desired quantity.

You need to prepare a compound of a medication with a concentration of 4.5%. How many grams of the medication will be in 30 g of the final product?

1.35 g Use the weight-in-weight formula: x g of medication ÷ 100 g of product. Therefore,: 4.5 g ÷ 100 g of product. Next, determine how many grams of the medication will be in 30 g of the final product using the equation: 4.5 : 100 :: x : 30 (4.5 × 30 = 135. 100 × x = 100x. x = 135 ÷ 100 = 1.35). There will be 1.35 g of medication in 30 g of final product.

You need to prepare 50 mL of D8W from D5W and D20W. How many milliliters of each solution will you need?

10 mL of D5W and 40 mL of D20W A = 20, B= 8, C = 5 D (B − C) and E (A − B). In this case, D = 3 and E = 12. Next, determine the Total Number of Parts (TP): 3 + 12 = 15. Next, use the ratio-proportion method to determine how many milliliters you will need of D and E. For D use the equation: 3 : 15 :: x : 50 (3 × 50 = 150. 15 × x = 15x. x = 150 ÷ 15 = 10). You will need 10 mL of A for your final mixture. For E use the equation: 12 : 15 :: x : 50 (12 × 50 = 600. 15 × x = 15x. x = 600 ÷ 15 = 40). You will need 40 mL of C for your final mixture.

A pharmacy's recipe book provides a formula that yields 20 mL of a drug solution. You are to prepare 100 mL of the solution. The formula calls for 2 mL of Drug A, 4 mL of Drug B, and distilled water QSAD to 20 mL. How much of each ingredient will you need?

10 mL of Drug A, 20 mL of Drug B, and 70 mL of distilled water Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 100 mL ÷ 20 mL = 5. You must multiply each ingredient by 5 to get the desired quantity. For Drug A: 2 mL × 5 = 10 mL. You will need 10 mL of Drug A. For Drug B: 4 mL × 5 = 20 mL. You will need 20 mL of Drug B. To determine the QSAD amount of distilled water add the volume of Drug A and Drug B (10 mL + 20 mL = 30 mL). Next, subtract the total of Drug A and B from the total desired volume (100 mL − 30 mL = 70 mL). You will need 70 mL of distilled water for your final mixture.

You need to prepare 20 g of a 4% ointment using a 6% and a 1% ointment. How many grams of each ointment will you need?

12 g of the 6% ointment and 8 g of the 1% ointment A = 6, B= 4, C = 1 D (B − C) and E (A − B). In this case, D = 3 and E = 2. Next, determine the Total Number of Parts (TP): 3 + 2 = 5. Next, use the ratio-proportion method to determine how many grams you will need of D and E. For D use the equation: 3 : 5 :: x : 20 (3 × 20 = 60. 5 × x = 5x. x = 60 ÷ 5 = 12). You will need 12 g of A for your final mixture. For E use the equation: 2 : 5 :: x : 20 (2 × 20 = 40. 5 × x = 5x. x = 40 ÷ 5 = 8). You will need 8 g of C for your final mixture

You need to prepare a compound of a medication with a concentration of 22%. How many grams of the medication will be in 80 g of the final product?

17.6 g Use the weight-in-weight formula: x g of medication ÷ 100 g of product. Therefore, 22 g ÷ 100 g of product. Next, determine how many grams of the medication will be in 80 g of the final product using the equation: 22 : 100 :: x : 80 (22 × 80 = 1760. 100 × x = 100x. x = 1760 ÷ 100 = 17.6). There will be 17.6 g of medication in 80 g of final product.

You need to prepare a compound of medication using 8 g of active ingredient in 45 g of a cream base. What is the percentage strength of this compounded preparation? Round your answer to the nearest tenth of a percent.

17.8% Percentage strength is a number of grams in 100 g of a medication. Therefore, you must find how many grams will be in 100 g of this preparation. Use the equation: 8 : 45 :: x : 100 (8 × 100 = 800. 45 × x = 45x. x = 800 ÷ 45 = 17.8). There will be 17.8 g in 100 g of the final product. Therefore, the percentage strength is 17.8%.

You need to prepare a compound of a medication with a concentration of 18%. How many grams of the medication will be in 100 g of the final product?

18 g Use the weight-in-weight formula: x g of medication ÷ 100 g of product. Therefore: 18 g ÷ 100 g of product.

A pharmacy's recipe book provides a formula that yields 20 mL of a drug solution. You are to prepare 15 mL of the solution. The formula calls for 3 mL of Drug A, 6 mL of Drug B, and distilled water QSAD to 20 mL. How much of each ingredient will you need?

2.25 mL of Drug A, 4.5 mL of Drug B, and 8.25 mL of distilled water Use the formula: Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 15 mL ÷ 20 mL = 0.75. You must multiply each ingredient by 0.75 to get the desired quantity. For Drug A: 3 mL × 0.75 = 2.25 mL. You will need 2.25 mL of Drug A. For Drug B: 6 mL × 0.75 = 4.5 mL. You will need 4.5 mL of Drug B. To determine the QSAD amount of distilled water add the volume of Drug A and Drug B (2.25 mL + 4.5 mL = 6.75 mL). Next, subtract the total of Drug A and B from the total desired volume (15 mL − 6.75 mL = 8.25 mL). You will need 8.25 mL of distilled water for your final mixture

A pharmacy's recipe book provides a formula that yields 40 g of an ointment. You are to prepare 10 g of the ointment. The formula calls for 11 g of Drug A, 2 g of Drug B, 1 g of Drug C, and 26 g of Petrolatum Base Ointment. How much of each ingredient will you need?

2.75 g of Drug A, 0.5 g of Drug B, 0.25 g of Drug C, and 6.5 g of Petrolatum Base Ointment Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 10 g ÷ 40 g = 0.25. You must multiply each ingredient by 0.25 to get the desired quantity. For Drug A: 11 g × 0.25 = 2.75 g. You will need 2.75 g of Drug A. For Drug B: 2 g × 0.25 = 0.5 g. You will need 0.5 g of Drug B. For Drug C: 1 g × 0.25 = 0.25 g. You will need 0.25 g of Drug C. For the petrolatum base ointment: 26 g × 0.25 = 6.5 g. You will need 6.5 g of petrolatum base ointment.

A pharmacy's recipe book provides a formula that yields 45 g of an ointment. You are to prepare 117 g of the ointment. The formula calls for 8 g of Drug A, 5 g of Drug B, 6 g of Drug C, and 19 g of Petrolatum Base Ointment. How much of each ingredient will you need?

20.8 g of Drug A, 13 g of Drug B, 15.6 g of Drug C, and 49.4 g of Petrolatum Base Ointment Use the formula: Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 117 g ÷ 45 g = 2.6. You must multiply each ingredient by 2.6 to get the desired quantity. For Drug A: 8 g × 2.6 = 20.8 g. You will need 20.8 g of Drug A. For Drug B: 5 g × 2.6 = 13 g. You will need 13 g of Drug B. For Drug C: 6 g × 2.6 = 15.6 g. You will need 15.6 g of Drug C. Finally, for the Petrolatum Base Ointment: 19 g × 2.6 = 49.4 g. You will need 49.4 g of Petrolatum Base Ointment.

You need to prepare 750 g of a 5% ointment using a 10% and a 2% ointment. How many grams of each ointment will you need?

281.25 g of the 10% ointment and 468.75 g of the 2% ointment A = 10, B= 5, C = 2 Next, determine D (B − C) and E (A − B). In this case, D = 3 and E = 5. Next, determine the Total Number of Parts (TP): 3 + 5 = 8. Next, use the ratio-proportion method to determine how many grams you will need of D and E. For D use the equation: 3 : 8 :: x : 750 (3 × 750 = 2250. 8 × x = 8x. x = 2250 ÷ 8 = 281.25). You will need 281.25 g of A for your final mixture. For E use the equation: 5 : 8 :: x : 750 (5 × 750 = 3750. 8 × x = 8x. x = 3750 ÷ 8 = 468.75). You will need 468.75 g of C for your final mixture.

You need to prepare 60 g of a 20% ointment using a 25% and a 15% ointment. How many grams of each ointment will you need?

30 g of the 25% ointment and 30 g of the 15% ointment A = 25, B= 20, C = 15 D (B − C) and E (A − B). In this case, D = 5 and E = 5. Next, determine the Total Number of Parts (TP): 5 + 5 = 10. Next, use the ratio-proportion method to determine how many grams you will need of D and E. For D use the equation: 5 : 10 :: x : 60 (5 × 60 = 300. 10 × x = 10x. x = 300 ÷ 10 = 30). You will need 30 g of A for your final mixture. Since A and B are needed in equal parts, you will also need 30 g of A for your final mixture.

You need to prepare a compound of medication using 12 g of active ingredient in 40 g of an ointment base. What is the percentage strength of this compounded preparation? Round your answer to the nearest tenth of a percent.

30% Percentage strength is a number of grams in 100 g of a medication you must find how many grams will be in 100 g of this preparation. 12 : 40 :: x : 100 (12 × 100 = 1200. 40 × x = 40x. x = 1200 ÷ 40 = 30). There will be 30 g in 100 g of the final product. Therefore, the percentage strength is 30%.

You need to prepare 175 mL of D8W from D5W and D20W. How many milliliters of each solution will you need?

35 mL of D5W and 140 mL of D20W A = 20, B= 8, C = 5 D (B − C) and E (A − B). In this case, D = 3 and E = 12. Next, determine the Total Number of Parts (TP): 3 + 12 = 15. Next, use the ratio-proportion method to determine how many milliliters you will need of D and E. For D use the equation: 3 : 15 :: x : 175 (3 × 175 = 525. 15 × x = 15x. x = 525 ÷ 15 = 35). You will need 35 mL of A for your final mixture. For E use the equation: 12 : 15 :: x : 175 (12 × 175 = 2100. 15 × x = 15x. x = 2100 ÷ 15 = 140). You will need 140 mL of C for your final mixture.

You need to prepare a compound of medication using 5 g of active ingredient in 125 g of a cream base. What is the percentage strength of this compounded preparation? Round your answer to the nearest tenth of a percent.

4% Percentage strength is a # of grams in 100 g of a medication. Therefore, you must find how many grams will be in 100 g of this preparation. Use the equation: 5 : 125 :: x : 100 (5 × 100 = 500. 125 × x = 125x. 500 ÷ 125 = 4). There will be 4 g in 100 g of the final product.

You need to prepare 120 g of a 10% ointment using a 5% and a 20% ointment. How many grams of each ointment will you need?

40 g of the 20% ointment and 80 g of the 5% ointment A = 20, B= 10, C = 5 D (B − C) and E (A − B). In this case, D = 5 and E = 10. Next, determine the Total Number of Parts (TP): 5 + 10 = 15. Next, use the ratio-proportion method to determine how many grams you will need of D and E. For D use the equation: 5: 15 :: x : 120 (5 × 120 = 600. 15 × x = 15x. x = 600 ÷ 15 = 40). You will need 40 g of A for your final mixture. For E use the equation: 10 : 15 :: x : 120 (10 × 120 = 1200. 15 × x = 15x. x = 1200 ÷ 15 = 80). You will need 80 g of C for your final mixture.

You need to prepare a compound of a medication with a concentration of 10%. How many grams of the medication will be in 450 g of the final product?

45 g Use the weight-in-weight formula: x g of medication ÷ 100 g of product. Therefore, 10 g ÷ 100 g of product. Next, determine how many grams of the medication will be in 450 g of the final product using the equation: 10 : 100 :: x : 450 (10 × 450 = 4500. 100 × x = 100x. x = 4500 ÷ 100 = 45). There will be 45 g of medication in 450 g of final product.

The pharmacy's recipe book provides a formula that yields 25 g of an ointment. You are asked to prepare a 125 g jar of the ointment. By what number do you need to multiply each ingredient to make the desired formula?

5 Use the formula: Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 125 g ÷ 25 g = 5. You must multiply each ingredient by 5 to get the desired quantity.

You need to prepare 25 mL of D8W from D5W and D20W. How many milliliters of each solution will you need?

5 mL of D5W and 20 mL of D20W A = 20, B= 8, C = 5 D (B − C) and E (A − B). In this case, D = 3 and E = 12. Next, determine the Total Number of Parts (TP): 3 + 12 = 15. Next, use the ratio-proportion method to determine how many milliliters you will need of D and E. For D use the equation: 3 : 15 :: x : 25 (3 × 25 = 75. 15 × x = 15x. x = 75 ÷ 15 = 5). You will need 5 mL of A for your final mixture. For E use the equation: 12 : 15 :: x : 25 (12 × 25 = 300. 15 × x = 15x. x = 300 ÷ 15 = 20). You will need 20 mL of C for your final mixture.

You need to prepare a compound of medication using 15 g of active ingredient in 300 g of a cream base. What is the percentage strength of this compounded preparation? Round your answer to the nearest tenth of a percent.

5% Percentage strength is a number of grams in 100 g of a medication. Therefore, you must find how many grams will be in 100 g of this preparation. Use the equation: 15 : 300 :: x : 100 (15 × 100 = 1500. 300 × x = 300x. x = 1500 ÷ 300 = 5). There will be 5 g in 100 g of the final product. Therefore, the percentage strength is 5%.

You need to prepare 200 g of a 14% ointment using a 20% and a 12% ointment. How many grams of each ointment will you need?

50 g of the 20% ointment and 150 g of the 12% ointment A = 20, B= 14, C = 12 D (B − C) and E (A − B). In this case, D = 2 and E = 6. Next, determine the Total Number of Parts (TP): 2 + 6 = 8. Next, use the ratio-proportion method to determine how many grams you will need of D and E. For D use the equation: 2 : 8 :: x : 200 (2 × 200 = 400. 8 × x = 8x. x = 400 ÷ 8 = 50). You will need 50 g of A for your final mixture. For E use the equation: 6 : 8 :: x : 200 (6 × 200 = 1200. 8 × x = 8x. x = 1200 ÷ 8 = 150). You will need 150 g of C for your final mixture.

You need to prepare a compound of a medication with a concentration of 25%. How many grams of the medication will be in 225 g of the final product?

56.25 g Use the weight-in-weight formula: x g of medication ÷ 100 g of product. Therefore, 25 g ÷ 100 g of product. Next, determine how many grams of the medication will be in 225 g of the final product using the equation: 25 : 100 :: x : 225 (25 × 225 = 5625. 100 × x = 100x. x = 5625 ÷ 100 = 56.25). There will be 56.25 g of medication in 225 g of final product.

The pharmacy's recipe book provides a formula that yields 50 g of an ointment. You are asked to prepare a 300 g jar of the ointment. By what number do you need to multiply each ingredient to make the desired formula?

6 Use the formula: Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 300 g ÷ 50 g = 6. You must multiply each ingredient by 6 to get the desired quantity.

You need to prepare 100 g of an 8 % ointment using a 10% and a 5% ointment. How many grams of each ointment will you need?

60 g of the 10% ointment and 40 g of the 5% ointment A = 10, B= 8, C = 5 determine D (B − C) and E (A − B). In this case, D = 3 and E = 2. Next, determine the Total Number of Parts (TP): 3 + 2 = 5. Next, use the ratio-proportion method to determine how many grams you will need of D and E. For D use the equation: 3 : 5 :: x : 100 (3 × 100 = 300. 5 × x = 5x. x = 300 ÷ 5 = 60). You will need 60 g of A for your final mixture. For E use the equation: 2 : 5 :: x : 100 (2 × 100 = 200. 5 × x = 5x. x = 200 ÷ 5 = 40). You will need 40 g of C for your final mixture.

You need to prepare a compound of a medication with a concentration of 12%. How many grams of the medication will be in 60 g of the final product?

7.2 g Use the weight-in-weight formula: x g of medication ÷ 100 g of product. Therefore, 12 g ÷ 100 g of product. Next, determine how many grams of the medication will be in 60 g of the final product using the equation: 12 : 100 :: x : 60 (12 × 60 = 720. 100 × x = 100x. x = 720 ÷ 100 = 7.2). There will be 7.2 g of medication in 60 g of final product.

The pharmacy's recipe book provides a formula that yields 10.5 g of an ointment. You are asked to prepare an 84 g jar of the ointment. By what number do you need to multiply each ingredient to make the desired formula?

8 Use the formula: Desired Quantity ÷ Current Quantity (or formula quantity). Therefore, 84 g ÷ 10.5 g = 8. You must multiply each ingredient by 8 to get the desired quantity.

You need to prepare 500 mL of an 8% solution using a 10% and a 5% solution. How many milliliters of each solution will you need?

A = 10, B= 8, C = 5 Next, determine D (B − C) and E (A − B). In this case, D = 3 and E = 2. Next, determine the Total Number of Parts (TP): 3 + 2 = 5. Next, use the ratio-proportion method to determine how many milliliters you will need of D and E. For D use the equation: 3 : 5 :: x : 500 (3 × 500 = 1500. 5 × x = 5x. x = 1500 ÷ 5 = 300). You will need 300 mL of A for your final mixture. For E use the equation: 2 : 5 :: x : 500 (2 × 500 = 1000. 5 × x = 5x. x = 1000 ÷ 5 = 200). You will need 200 mL of C for your final mixture.