Name : Ayu Novita Trisnawati

ID Number : 1111012047

Class: reguler 1

1. 2 : 12 =

Answer :

2 : 12 = 2 x

21 = 4

In fraction = 41

In decimal = 4,0

In percentage = 4 x 100 = 400 %

2.12 : 4 =

Answer12 x

14

= 18

In fraction = 18

In decimal = 1:8 = 0.125In percentage = 0.125 x 100 = 12.5 %

3. 5 14

: 10 12 =

Answer :

5 14

: 10 12 =

214

x 2

21

= 12

In fraction = 12

In decimal = 1:2= 0.5

In percentage = 0.5 x 100 = 50%

4. 1515:

7615

=

Answer :

1515:

7615

= 765

x 1576

= 3

In fraction = 31

In decimal = 3.0

In percentage = 3 x 100 = 300 %

5.3311

=

Answer :

3311

= 33:1111:11

= 31

In fraction = 31

In decimal = 3.0

In percentage = 3 x 100 = 300 %

6. 3 59 : 7

15 =

Answer :

3 59 : 7

15 =

329

x 5

36

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= 4081

In fraction = 4081

In decimal = 0.498

In percentage = 0.498 x 100 = 49.8 %

7. How many grams of potassium permanganate should be used in

preparing 300 mL of a 12 : 1250 solution ?

Answer :

0.51250

= x(gr )300

X = 0.12 gr

8. How many milligrams of iodine should be used in prepare 50 mL of 2:100 iodine solution, and if potassium iodide should be added in a ratio of 2:1 to get a soluble from of iodine, how many milligrams of potassium iodide are needed to prepare such prescription ?Answer :

Mg of iodine : 2

100 =

x(gr )50

X =1 gr

Mg of potassium iodide : 21 =

x(gr )1

X = 2 grSo, iodine needed 1 gr and potassium iodide needed 2 gr.

9. How many grams of sodium chloride should be used in preparing of 500 mL of a 1:25 solution?Answer: 1

25 =

x(gr )500

x=20 gr

10. A nurse was instructed to give a dehydrated patient 500 mL of 25 % dextrose and 100 mL of 0.9% saline as intravenous infusion. What is the ratio between volume of dextrose to saline ordered for this patient?

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Answer : Ratio of volume dextrose to saline = 500mL : 100mL

= 5 :1

11. If the dose of a drug, misoprostol, is 100 micrograms, how many doses are contained in 0.5 grams?Answer : 1 dose = 100 microgramsX dose= 500.000 micrograms

1xdose

= 100500.000

X = 5000 doses

12. If a tablet containing 10 mg torsemide is to be taken twice a day, how many grams of torsemide will be patient consume in 2 months?Answer : 10 mg = 2x a day=20 mg per day2 months = 60 days so the drugs must be consume 120x202

=x (gr )120

X = 1200 mg = 1.2 gr

13. If cough syrup contains 150 mg of codein in 200 mililiters, how many mg of codein are contained in 30 ml?Answer:150200

=x (mg)

30

X = 22.5 mg

14. If cough syrup contains 120 mg of codein in 250 mililiters, how many mg of codein are contained in 15 ml?Answer :

120mg250mL

= x(mg)

15

x=7.2mg

15. If a dose of an experimental drug for patient weighing 132

lbs is 13mg/kg of body weight, taken 3 times a day for 10 days, how

many 20-mg tablets of this products should be dispensed?Answer :1 tablet dose = 20 mg

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Taken 3 times per day for 10 daysSo 3 x 10 = 30 tablets

16. If a patient has been instructed to take 5 mL of sulfamethoxazole oral suspension containing 100mg/mL every 8 hours , how days will a 5-fluid-ounce (150 mL) bottle of the suspension last?Answer :8 hours= 1/3 day, 5 mL, so per day it takes 15mL15mL1days

=150mLxdays

X= 10 days

17. A physician prescribed primidone oral suspension for an epileptic patient to be taken in doses of 10 mL 4 times a day for 15 days. If the concentration of this suspension is 50 mg/mL, how many mg of the drug will the patient receive in 15 days?Answer :Dose = 10 ml x 4 x 15 = 600 ml

18. Griseofulvin oral suspension contains 125mg/5mL. how many gr of this drug are contained in 2.5 L ?Answer :125mg5mL

= x mg2500mL

X = 62.5 mg

19. Simethicone oral suspension contains 40 mg/0.6 mL. how many gr of this drug are contained in 0.15 L?Answer :40mg0.6mL

= xmg

150mLx=10.000mg X= 10 gr

20. A physician prescribed gentamycin antibiotic for a patient to be administrated on the basis of the body weight. If the prescription reads “2mg/kg, once a day, 10 days,” and if the patient weights 140.8 lbs, what will be the amount (in mg) of the gentamycin this patient receives ?Answer :140.8 lbs = 63.86688 kgPatient need = 2 x 63.86688 = 127.7339 mg = 128 mg x 10 =1280mg

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The amount of the gentamycin this patient receive = 128 mg / 10 day

21. Hibiclens skin cleanser solution contains 4 gr of chlorhecidine gluconate in 100 ml if 0,25 ml of this product is used 4 times a day, how many mg of chlorhexidine gluconate are represen ted in volume of this solution used per day?

Answer:

4 gr

100ml=

x0 ,25ml

X= 0,25 x4

100=10mg

Per day= 10 mg x 4= 40 mg

21. How many ml of an injection containing20 mg of gentamycin in every 2 ml should be used in filling a medication order for 5 mg of gentamycin to be administred intramuscularly?

22.

Answer :

20mg2ml

=5mgx

X= 5 X220

=0,5ml

23. if pepto-bismol suspension contains 262 mg of bismuth subsalicylate per 15 ml, how many grams of this drug will be contained in 3 ml of this suspension?

Answer: 262mg15ml

= x3000ml

x=3000 x262

15=52,4 gr

24. The dose of adrug is 200 mg per kg of body weight, how many mg should be given to a patient weighting 187 lb?

Answer: 187 lb= 85, 3281 kg

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Dose are= 85,3281 x 120

= 10239 mg= 10, 239 gr

25. The adult dose of a sedative drug in a solution from is 0,04 ml per kg of body weight to be administrated as a single dose. How many ml should be administrated to a person weighting 143 lb?

Answer :143 lb= 64,8648

The dose= 0,04 ml/ kg weight

So amount of dose are= 64,8648 x 0,04= 2,594 ml

26. if a studentnew prescription shows a 20% increase in total dose of the drug. How many mg of the drug should the patient take each day now? Assume that the previous daily dose was 200 mg

Answer :100% + 20%= 120%

200 x 120% = 200 x 120100

=240mg

27. how many mg of metronidazole are represented in 5 ml of 10% w/v syrup?

Answer :

10 gr

100ml= x

5ml

x=5 x10100

=0,5 gr=500mg

28. if you need to prepare 20 500 mg tablets what fractions of a 1- kg stock would you need to use?

Answer : total berat = 20 x 500 mg

= 10.000 mg = 0,01 kg

Fraction= 10.000

1.000.000= 1

100

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29. if 5 ml of a decongestant syrup contains 5 mg of chloroheniramine maleate how many ml of of this syrup will contain 100 mg of chlorpheniramine maleate?

Answer :

5ml5mg

= x100mg

x=5 x100

5=100ml

30. if 1 gr of a finely divided charcoal powder can remove 30 mg of a toxin from the stomach, how much charcoal powder should be used for a patient who swallowed 75 mg of toxin?

Answer :

1gr

30mg= x

75mg

X= 1x 75

30=2,5gr

31. if a physician prescribes 1,2 gr of amoxilin per day for a patient, how many 400 mg capsule should this patient take daily?

Answer : per day 1,2 gr= 1200 mg

Capsule take daily= 1200400

=3capsules

32. A patient was talking 500 mg of certain antibiotic. If the requirement for this antibiotic is increased by 50% for this patient. How many mg of this drug should the patient take?

Answer :

500 x 50%= 500 x50

100=250mg

500 mg+ 250 mg = 750 mg

33. if anopthalmic solution contains 2 mg of pilocarpine in each ml of solution. How many ml of solution are needed to deliver 0,1 mg of pilocarpine?

Answer :

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2mg1ml

=0,1mgx

x=1x 0,12

=0,05ml

34. if normal saline contains 0,9% w/v of sodium chloride, how many kg of sodium chloride are needed to prepare 500 L of normal saline?

Answer: 0,9 %= 0,9 gr in 100 ml

500 mL= 500.000 ml

X= 0,9 gr100ml

= x500.000ml

X= 500.000x 0,9

100=4,5kg

35. if a prescription requires a patient to take 100 mg tablets 3 times a day for 1 week, how many similar prescriptions can be fiiled from a stock containing 400 tablets?

Answer: 100 mg tablets 3 times a day for 1 week= 21 tablets

If there are 420 tablets so = 42021

=20

36. how many ml of a 20% w/v solution are required to prepare 2 L of 0,5% w/v solution?

Answer :

2L

0,5 %= X

20 %

X= 2L X 20

0,5=80 L

37. If a retail pharmacy fills 200 prescriptions a day with two pharmacist, how many more pharmacist are required to fill 500 prescription per day?

Answer :

200

2=

500x

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X= 100x 2

500=5 pharmacist

38. how many ml of 2 % (w/v) solution contain the some amount of drug as in 150 ml of 0,1 % solution?

Answer :

V x2

100=150 x

0,1100

V x 2

100=0,15

X = 152

=7,5ml

39. how many 5 mg tablets of hyoscine can be prepared from 3 grams of hyosane?

Answer :3 gr= 3000 mg

X = 3000mg

5mg=600tablets

40. If a pediatre expectorant formulation has strength of 0,1 % w/v of drug. How many ml are required in 5 ml of this formulation?

Answer :

0,1mg100ml

= x5ml

X = 5x 0,1100ml

=0,005ml

41. how many miligrams are represented in 275 mililiters of 0,2 % (w/v) syrup?

Answer :

0,2100

= x275

X = 0,2x 275

100=0,55

X = 0,55 x 1000= 550 mg

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42. How many liters of 0,15% (w/v) solution can be prepared from 3 g of drug?

Answer :

0 ,15100

=3grx ml

X= 3x 1000 ,15

=2000ml=2 L

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