Drug Solution Quiz
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- 1.How many milliliter of U-100 insulin should be used to obtain 50 units of insulin?
- A.
5 mL
- B.
50 mL
- C.
0.5 mL
- D.
500 mL
- 2.How many grams of dextrose are required to prepare 4500 L of a 5% solution?
- A.
80,000 g
- B.
225,000 g
- C.
4 f3
- D.
8 f3
- 3.How many grams of a drug substance should be dissolved in 250 mL of water to make a 5% (w/w) solution?
- A.
9.6 g
- B.
13.16 g
- C.
60g
- D.
10g
- 4.In what proportion should alcohols of 90% and 50% strengths should be mixed to make 70% alcohol?
- A.
3 parts / 5 parts
- B.
1 part / 1 part
- C.
5 parts / 4 parts
- D.
4 parts / 5 parts
- 5.How many milligrams of gentian violet should be used in preparing the following solution? Rx Gentian violet (1:10,000) 50mL Signa: Instill as directed.
- A.
50
- B.
5
- C.
20
- D.
25
- 6.Rx Antipyrine 7% Glycerin ad 60.0 Signa: Five drops in the right eye. How many grams of antipyrine should be used in compounding the prescription?
- A.
5.5
- B.
6.0
- C.
4.2
- D.
2.2
- 7.What is the ratio strength (w/v) of a solution made by dissolving 5 tablets, each containing 2.25 g of sodium chloride in enough water to make 1800mL?
- A.
1:160
- B.
1:360
- C.
1:1000
- D.
1:300
- 8.How many mL of glycerin would be needed to prepare 1 lb of an ointment containing 5% w/w glycerin? The density of glycerin is 1.25 g/mL.
- A.
1.2
- B.
22.1
- C.
18.2
- D.
13.5
- 9.
- A.
1650
- B.
1660
- C.
1550
- D.
1560
- 10.How many gallons of water are needed to dilute 1 gallon of 6^ conc. Of antiseptic solution to make 2% final concentration?
- A.
1 gallons
- B.
3 gallons
- C.
2 gallons
- D.
1.5 gallons
- 11.If 800g of a 5% coal tar ointment is mixed with 1200 g of a 10% coal tar ointment, what is the concentration of coal tar in the finished product?
- A.
8.5%
- B.
9%
- C.
8%
- D.
9.5%
- 12.How many mL of a syrup having asp gr of 1.350 should be mixed with 3000mL of a syrup having a sp gr of 1.250 to obtain a product having a sp gr of 1.310?
- A.
3000mL
- B.
4500mL
- C.
3500mL
- D.
5000mL
- 13.Concentration of a weak solution of liquid preparation is expressed in terms of:
- A.
Proof strength
- B.
Percentage strength
- C.
Ratio strength
- D.
MEq
- 14.How many grams of petrolatum should be added to 250 g of a 25% sulfur ointment to make a 5% ointment?
- A.
1000g
- B.
1250g
- C.
1500g
- D.
950g
- 15.If some moist crude drug contains 7.2% (w/w) of active ingredient and 21.6% of water, what will be the percentage (w/w) of active ingredient after the drug is dried?
- A.
7.2
- B.
9.2
- C.
10.2
- D.
13.2
- 16.The USP states that 1 g of a chemical is soluble in 10mL of alcohol. What is the percentage strength of a saturated solution of this chemical if alcohol has a sp gr of 0.80?
- A.
10.0% w/w
- B.
11.1% w/v
- C.
11.1% w/w
- D.
12.5% w/v
- 17.In what proportion should alcohol of 95% and 50% strengths be mixed to make 70% alcohol?
- A.
3 parts and 5 parts
- B.
5 parts and 5 parts
- C.
5 parts and 4 parts
- D.
4 parts and 5 parts
- 18.How many grams of a 1:10 trituration of atropine sulfate are required to obtain 25 mg of atropine sulfate?
- A.
250
- B.
25
- C.
0.25
- D.
.25
- 19.How many grams of 10% (w/w) ammonia solution can be made from 1800g of 28% (w/w) strong ammonia solution?
- A.
6428
- B.
5050
- C.
5040
- D.
342
- 20.How many mL of 24% (w/v) concentrate of saline solution should be used in preparing 600mL of a solution such that 10 mL diluted to a liter will yield a 0.09% solution?
- A.
300mL
- B.
150mL
- C.
50mL
- D.
225mL
- 21.Prepare 1000 mL of KMnO4 1:12000 compresses out of KMnO4 1:8000.
- A.
Add 333.3mL water to 1000mL KMnO4 1:8000
- B.
Add 666.6mL water to 333.3mL KMnO4 1:8000
- C.
Add 333.3mLKMnO4 1:8000 and enough water to make a final volume of 1000mL
- D.
Add 333.3mL water to 666.6mL KMnO4 1:8000
- 22.You have a stock solution of 50% sodium nitrate and you were asked to prepare 300 mL of a 10% solution. How many mL are needed?
- A.
20
- B.
15
- C.
30
- D.
60
- 23.How many mL of a 1:400 (w/v) stock solution should be used to make 4 L of a 1:2000 (w/v) solution?
- A.
400mL
- B.
800mL
- C.
1600mL
- D.
200mL
- 24.A cupric chloride injection (0.4 mg/mL) is used as an additive to IV solutions for TPN. What is the final ratio strength of copper in the TPN solution if 2.5 mL of the injection is added to enough of the IV solution to prepare 500mL?
- A.
1:500
- B.
1:5000
- C.
1:50000
- D.
1:500000
- 25.Express 0.2% as a ratio strength.
- A.
1:5000
- B.
1:5
- C.
1:500
- D.
1:50
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