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WorksheetsConcentrations and Dilutions
Total questions: 32
Worksheet time: 16mins
Which of the following is the correct generic name for the brand name drug Altace?
ramipril
lisinopril
atenolol
amlodipine
What is the brand name for the generic drug valsartan?
Diovan
Coreg
Norvasc
Toprol XL
Which pair correctly matches the brand name drug to its generic counterpart?
Coreg/carvedilol
Sular/losartan
Benicar/nebivolol
Lopressor/ramipril
If a patient is prescribed enalapril, which brand name drug are they likely taking?
Vasotec
Lotensin
Avapro
Bystolic
A doctor prescribes nebivolol to a patient. Which brand name drug should the pharmacist provide?
Bystolic
Norvasc
Calan
Benicar
Which of the following brand name/generic pairs is NOT correct?
Norvasc/amlodipine
Lopressor/metoprolol tartrate
Toprol XL/nebivolol
Cozaar/losartan
Which brand name drug corresponds to the generic drug irbesartan?
Avapro
Benicar
Sular
Calan
How many grams of hydrocortisone powder are contained in 20 gm of hydrocortisone 2.5% cream?
0.0005 gm
0.005 gm
0.5 gm
0.05 gm
How much 25 mg/mL solution can you make by diluting 120 mL of a 100 mg/mL solution?
12,000 mL
240 mL
100 mL
480 mL
If 10 gm of active ingredient is mixed with 1,000 mL of normal saline, the final concentration (w/v) would be:
1%
0.1%
10%
0.01%
How much chlorpromazine 100 mg/ml should you dilute to prepare 240 ml of chlorpromazine 30 mg/ml?
8 mL
80 mL
72 mL
7.2 mL
How much potassium chloride 20% should you dilute to prepare 480 mL of potassium chloride 2.5%?
384 mL
6 mL
60 mL
38.4 mL
To compound an emulsion using a liquid drug in a liquid base, you would calculate using which method?
Stock solution diluent
Weight/weight concentration
Volume/volume concentration
Weight/volume concentration
If 25 gm of active ingredient is mixed with 16 oz of distilled water, what is the final concentration (w/v)?
1.56%
5.2%
0.52%
15.6%
If 4.5 gm of sodium chloride is diluted in 2 L of SWFI, the final percent strength would be:
0.225%
2.25%
22.5%
0.0225%
You would need to dilute (a) of a 25% stock solution to make 16 oz of a 10% solution.
The percent strength concentration of a solid active ingredient contained within a liquid base is the:
% weight/weight.
% weight/volume.
Diluent.
Concentration.
380 mL of active ingredient is added to 4 L of distilled water. What is the final concentration (v/v)?
38%
8.68%
1.05%
9.5%
How many mL of active ingredient must be added to distilled water to produce 16 oz of a 10% solution (v/v)?
0.48 oz
48 mL
4.8 oz
4.8 mL
The percent strength concentration of a liquid active ingredient contained within a liquid base is the:
Percent strength.
% weight/volume.
Concentration.
% volume/volume.
If 53.5 gm of active ingredient is mixed with 500 mL of distilled water, what is the final concentration (w/v)?
53.5%
0.107%
10.7%
5.35%
3 gm of active ingredient is mixed with 120 gm of ointment base. What is the final concentration (w/v)?
2%
2.4%
2.5%
3%
How many mL of active ingredient must be added to distilled water to produce 1.5 L of a 1.5% solution (v/v)?
225 mL
150 mL
22.5 mL
2.25 mL
If you diluted 250 mL of dextrose 5% to 1,000 mL, what is the new strength?
1.25%
0.125%
2.5%
2%
24 mL of active ingredient is added to 500 mL of an alcohol-based solution. What is the final concentration (v/v)?
4.8%
0.48%
4.58%
0.458%
If you diluted 16 oz of alcohol 91% to 70%, how much could you produce?
208 mL
500 mL
624 mL
369.2 mL
Which of the following types of concentration refers to those in which a liquid active ingredient is mixed with a liquid base?
v/v
w/w
w/v
mg/mL
If 4.5 gm of sodium chloride is diluted in 2 L of SWFI, what is the final percent strength?
0.225%
2.25%
22.5%
25.2%
Concentrations of many pharmaceutical preparations are expressed as a:
Calculation
Proportion
Percent strength
Ratio
How many grams of lidocaine powder are present in 40 gm of lidocaine 5% ointment?
2 gm
0.2 gm
4 gm
0.5 gm
If you dilute 100 mL of ethanol 95% to 60%, what will be the final volume produced?
95 mL
1580 mL
158.3 mL
60 mL
How much sodium chloride 10% solution is needed to prepare 200 mL of sodium chloride 2% solution?
40 mL
20 mL
4 mL
10 mL
