Suffolk County Community College – Department of Nursing
Dosage Calculations Practice
1. The physician has prescribed 250 cc of D5W with 200 mg of Dopamine HCl to be infused
at a rate of 10 mcg/kg/min. Your patient weighs 87 lbs. Using an IV administration set
that delivers 60 microdrops/cc, at how many microdrops/min will you infuse the IV?
2. A physician has prescribed Phenobarbital po for a child weighing 35 lbs. The drug
literature recommends a maximum of 3 mg/kg/dose. In checking the appropriateness of
the physician’s order, you determine that _______ of Phenobarbital would be a maximum
safe dosage per dose.
3. The physician has prescribed 15 mEq of Potassium Chloride for administration IV. The
Potassium Chloride is available in a vial containing 20 mEq in 10cc. In preparing the
drug for administration, how many cc should you withdraw from the vial?
4. 5 mg of Terbutaline Sulfate has been prescribed IV. How many cc should be prepared
using an ampule labeled 1 mg in 1 cc?
5. The physician has prescribed 2,200 mg of Ticar for administration IV. A 3 g vial of Ticar
in powdered form is available. Directions for reconstitution state: Add 12 cc of diluent to
yield 200 mg in 1 cc. After reconstituting the drug as directed, how many cc should you
withdraw from the vial in preparing to administer the drug?
6. 1 mg of Isuprel in 100 cc of D5W has been ordered for IV infusion at a rate of 0.1
mcg/kg/min. Your patient weighs 80 lbs. At how many microdrops/min should you infuse
the IV using a solution administration set that delivers 60 microdrops/cc?
7. You need to verify that a prescribed dose of Erythromycin Estolate po for a child weighing
43 lbs. is safe. The drug literature recommends a maximum of 40 mg/kg/day. A
maximum dose for this child would be ________ per day.
8. The physician has prescribed 0.1 g of Vistaril for administration IM. The Vistaril is
available in a vial containing 50 mg in 1 cc. In preparing the drug for administration, how
many cc should you withdraw from the vial?
9. The physician has prescribed 0.5 g of Ancef for administration IV. The Ancef is available
in a vial containing 330 mg in 1 cc. In preparing the drug for administration, how many cc
should you withdraw from the vial?
10. 1000 cc of D5 ½ NS has been prescribed for IV infusion per 12 hrs. You are using an IV
administration set that delivers 10 drops/cc. You will infuse the IV at how many drops per
minute?
11. The physician has prescribed 1 g of Robaxin po. The Robaxin is available in unscored
tablets labeled 500 mg. How many unscored tablets should you administer?
12. Corgard is available in 20 mg scored tablets. 10 mg has been prescribed po. You
should administer how many scored tablets?
13. 0.25 g of Ampicillin has been prescribed. You have Ampicillin on hand but labeled 250
mg. 0.25 g of Ampicillin is equivalent to how many mg?
14. Ringer’s solution has been prescribed IV to infuse at a rate of 45 cc per 1 hr. Your IV
administration set delivers 60 drops/cc. You should infuse the IV at how many
drops/min.?
15. You have available on your nursing unit an IV administration set that delivers 60
drops/cc. The physician has prescribed 74 cc of D5NS IV q 1 hr(s). At how many
drops/min should you infuse the IV?
16. 260 mg of Ancef has been prescribed IV. How many cc should be prepared using a vial
labeled 330 mg in 1 cc?
17. You have available on your nursing unit an IV administration set that delivers 10
drops/cc. The physician has prescribed 175 cc of Lactated Ringer’s IV q 1 hr(s). At how
many drops/min. should you infuse the IV?
18. 8 mg of Phenobarbital has been prescribed po. The Phenobarbital is available in liquid
form labeled 30 mg in 7.5 cc. You should administer how many cc’s of the
Phenobarbital?
19. 350 mg of Vancomycin has been prescribed IV. How many cc should be prepared using
a vial labeled 500 mg in 10 cc?
20. You need to verify that a prescribed dose of Tobramycin IV for a child weighing 58 lbs. is
safe. The drug literature recommends a maximum of 6 mg/kg/day. A maximum dose for
this child would be __________ per day.
21. You have on hand 500 mg of Pen-Vee K. The physician has prescribed 0.5 g of Pen-Vee
K. 0.5 g of Pen-Vee K is equivalent to how many mg?
22. 1,000 mg of Dobutamine in 250 cc of D5W has been ordered IV for infusion at a rate of
12.5 mcg/kg/min. Your patient weighs 190 lbs. At how many microdrops/min. should you
infuse the IV using a solution administration set that delivers 60 microdrops/cc?
23. 1 g of Claforan has been prescribed. You have Claforan on hand but labeled 95 mg. 1 g
of Claforan is equivalent to how many mg?
24. 0.4 g of Motrin has been prescribed po. 400 mg of Motrin is available in unscored
tablets. How many unscored tablets should be administered?
25. 125 cc of D5W has been prescribed for IV infusion per 1 hr(s). You are using an IV
administration set that delivers 60 drops/cc. You will infuse the IV at how many drops per
minute?
26. You have on hand 250 mg of Ampicillin. The physician has prescribed 0.25 g of
Ampicillin. 0.25 g of Ampicillin is equivalent to how many mg?
27. Dilaudid is available in a vial labeled 2 mg in 1 cc. 1 mg of Dilaudid has been prescribed
IM. How many cc should you withdraw from the vial in preparing to administer the drug?
28. You have available a vial of Vistaril labeled 50 mg in 1 cc. 0.1 g of Vistaril has been
prescribed by the physician IM. What volume of the drug will you prepare?
29. D5NS has been prescribed IV to infuse at a rate of 1000 cc per 12 hr(s). Your IV
administration set delivers 15 drops/cc. You should infuse the IV at how many
drops/min?
30. 1000 cc of Lactated Ringer’s has been prescribed for IV infusion per 12 hr(s). You are
using an IV administration set that delivers 10 drops/cc. You will infuse the IV at how
many drops/minute?
31. 90 mg of Ancef has been prescribed IV. How many cc should be prepared using a vial
labeled 240 mg in 1 cc?
32. You need to verify that a prescribed dose of Chloromycetin IV for a child weighing 12 lbs.
is safe. The drug literature recommends a maximum dose of 50 mg/kg/day. A maximum
dose for this child would be ________ per day.
33. You have on hand 500 mg of Nafcillin. The physician has prescribed 0.25g of Nafcillin.
0.25 g of Nafcillin is equivalent to how many mg?
34. 10 mg of Librium has been prescribed po. 5 mg of Librium is available in capsules. How
many capsules should be administered?
35. You need to verify that a prescribed dose of Pen-Vee K po for a child weighing 35 lbs. is
safe. The drug literature recommends a maximum dose of 50 mg/kg/day. A maximum
dose for this child would be _______ per day.
36. You need to verify that a prescribed dose of Vancomycin IV for a child weighing 52 lbs. is
safe. The drug literature recommends a maximum of 40 mg/kg/day. A maximum dose
for this child would be ________ per day.
37. You have on hand 500 mg of Tylenol. The physician has prescribed 0.5 g of Tylenol. 0.5
g of Tylenol is equivalent to how many mg?
38. You have on hand 500 mg of Chloral Hydrate. The physician has prescribed 0.125 g of
Chloral Hydrate. 0.125 g of Chloral Hydrate is equivalent to how many mg?
39. D5 1/3 NS has been prescribed IV to infuse at a rate of 1000 cc per 8 hr(s). Your IV
administration set delivers 15 drops/cc. You should infuse the IV at how many
drops/min?
40. You have on hand 100 mg of Vistaril. The physician has prescribed 0.1 g of Vistaril. 0.1
g of Vistaril is equivalent to how many mg?
41. 0.2 g of liquid Suprax has been prescribed po by the physician. How many cc should you
administer if the Suprax is available in a strength labeled 100 mg in 5 cc?
42. 2 g of powdered Mefoxin is available. Directions for reconstitution state: Add 20 cc of
diluent to yield 100 mg in 1 cc. To administer a prescribed dosage of 1 g for IV
administration, how many cc of drug should you withdraw from the vial after reconstituting
the drug as directed?
43. 0.1 g of Vistaril has been prescribed IM. How many cc should be prepared using a vial
labeled 100 mg in 2 cc?
44. The physician has prescribed 4 g of Magnesium Sulfate 50% for administration IV. The
Magnesium Sulfate 50% is available in a vial containing 500 mg in 1 cc. In preparing the
drug for administration, how many cc should you withdraw from the vial?
45. 81 cc of ½ NS has been prescribed for IV infusion per 1 hr(s). You are using an IV
administration set that delivers 60 drops/cc. You will infuse the IV at how many
drops/minute?
46. The physician has prescribed 0.2 g of Dopamine HCl. On hand you have Dopamine HCl
labeled 160 mg. 0.2 g of Dopamine HCl is equivalent to how many mg?
47. You have on hand a vial of Claforan labeled 1 g. The physician has ordered 1 g of the
Claforan IV. You reconstitute the drug as directed, adding 10 cc of diluent to yield a
strength of 95 mg in 1 cc. In preparing to administer the drug, how many cc should you
withdraw from the vial?
48. Reglan is available in liquid form labeled 5 mg in 5 cc. The physician has prescribed 10
mg of Reglan po. How many cc should you administer?
49. 300 mg unscored tablets of Ferrous Sulfate are available. How many unscored tablets
should be administered po if 5 gr of Ferrous Sulfate is prescribed?
50. 150 mcg of Scopolamine has been prescribed. You have Scopolamine on hand but
labeled 0.4 mg. 150 mcg of Scopolamine is equivalent to how many mg?
51. You have on hand 250 mg of Amoxicillin. The physician has prescribed 0.25 g of
Amoxicillin. 0.25 g of Amoxicillin is equivalent to how many mg?
52. 26 cc of D5 1/3 NS has been prescribed for IV infusion per 1 hr(s). You are using an IV
administration set that delivers 60 drops/cc. You will infuse the IV at how many
drops/min?
53. The physician has prescribed 500 cc of D5W with 5,000 mg of Brevibloc to be infused at
a rate of 100 mcg/kg/min. Your patient weighs 172 lbs. Using an IV administration set
that delivers 60 microdrops/cc, at how many microdrops/min will you infuse the IV?
54. You have on hand 50 mg of Vistaril. The physician has prescribed 0.1 g of Vistaril. 0.1
g of Vistaril is equivalent to how many mg?
55. A physician has prescribed Ampicillin IV for a child weighing 28 lbs. The drug literature
recommends a maximum of 400 mg/kg/day. In checking the appropriateness of the
physician’s order, you determine that _________ of Ampicillin would be the maximum
safe dosage per day.
56. You need to verify that a prescribed dose of Ticar IV for a child weighing 61 lbs. is safe.
The drug literature recommends a maximum of 300 mg/kg/day. A maximum safe dose
for this child would be __________ per day.
57. The physician has prescribed 4 g of Magnesium Sulfate 50%. On hand you have
Magnesium Sulfate 50% labeled 500 mg. 4 g of Magnesium Sulfate 50% is equivalent to
how many mg?
58. You have available a vial of Ancef labeled 240 mg in 1 cc. 0.25 g of Ancef has been
prescribed by the physician IV. What volume of drug will you prepare?
59. 1 g of powdered Claforan is available. Directions for reconstitution state: Add 10 cc of
diluent to yield 95 mg in 1 cc. To administer a prescribed dosage of 0.75 g for IV
administration, how many cc of the drug should you withdraw from the vial after
reconstituting the drug as directed?
60. 0.1 g of liquid Vibramycin has been prescribed po by the physician. How many cc
should you administer if the Vibramycin is available in a strength labeled 25 mg in 5 cc?
61. A patient who weighs 30 lbs requires an IV infusion of 250 mg of Aminophyline in 500 cc
of D5W. An infusion rate of 17 mcg/kg/min. has been prescribed. Your IV tubing delivers
60 microdrops/cc. You will infuse the IV at how many microdrops/min?
62. Liquid Nafcillin is available po for use labeled 250 mg in 5 cc. 0.1 g of Nafcilin has been
prescribed. You should prepare how many cc of the drug for administration?
63. 0.3 g of Dilantin has been prescribed po. 100 mg of Dilantin is available in capsules.
How many capsules should be administered?
64. 240 mg of Ancef is available on your nursing unit? 0.5 g of Ancef has been prescribed.
0.5 g of Ancef is equivalent to how many mg?
65. 0.25 g of Erythromycin has been prescribed. You have Erythromycin on hand but
labeled 250 mg. 0.25 g of Erythromycin is equivalent to how many mg?
66. 5,000 mg of Brevibloc in 500 cc of D5W has been ordered for IV infusion at a rate of 100
mcg/kg/min. Your patient weighs 216 lbs. At how many microdrops/min. should you
infuse the IV using a solution administration set that delivers 60 microdrops/cc?
67. You have available an ampule of Ergotrate labeled 0.2 mg in 1 cc. 0.1 mg of Ergotrate
has been prescribed by the physician IM. What volume of drug will you prepare?
68. A physician has prescribed Phenobarbital po for a child weighing 32 lbs. The drug
literature recommends a maximum of 3 mg/kg/dose. In checking the appropriateness of
the physician’s order, you determine that _______ of Phenobarbital would be a maximum
safe dosage per dose.
69. 150 mg of Chloromycetin is available on your nursing unit. 0.25 g of Chloromycetin has
been prescribed. 0.25 g of Chloromycetin is equivalent to how many mg?
70. 0.5 g of Claforan has been prescribed. You have Claforan on hand but labeled 300 mg.
0.5 g of Claforan is equivalent to how many mg?
71. 250 mg of Amoxil is available on your nursing unit. 0.5 g of Amoxil has been prescribed.
0.5 g of Amoxil is equivalent to how many mg?
72. The physician has prescribed 225 mg of Vancomycin for administration IV. The
Vancomycin is available in a vial containing 500 mg in 10 cc. In preparing the drug for
administration, how many cc should you withdraw from the vial?
73. 0.1 g of Dramamine has been prescribed. You have Dramamine on hand but labeled 50
mg. 0.1 g of Dramamine is equivalent to how many mg?
74. The physician has prescribed 250 cc of D5W with 250 mg of Dobutamine to be infused at
a rate of 5 mcg/kg/min. Your patient weighs 150 lbs. Using an IV administration set that
delivers 60 microdrops/cc, at how many microdrops/min will you infuse the IV?
75. A patient who weighs134 lbs requires an IV infusion of 2 g of LIdocaine in 500 cc of D5W.
An infusion rate of 0.04 mg/kg/min. has been prescribed. Your IV tubing delivers 60
microdrops/cc. You will infuse the IV at how many microdrops/min?
76. 1 g of Claforan has been prescribed. You have Claforan on hand but labeled 95 mg. 1
g of Claforan is equivalent to how many mg?
77. The physician has prescribed 500 cc of D5W with 50 mg of Nipride to be infused at a rate
of 1 mcg/kg/min. Your patient weighs 155 lbs. Using an IV administration set that
delivers 60 microdrops/cc, at how many microdrops/min will you infuse the IV?
78. Vistaril is available in a vial labeled 50 mg in 1 cc. 0.1 g of Vistaril has been prescribed
IM. How many cc should you withdraw from the vial in preparing to administer the drug?
79. 50 mcg of Sandostatin has been prescribed sc. How many cc should be prepared using
an ampule labeled 0.1 mg in 1 cc?
80. The physician has prescribed 500 cc of D5W with 800 mg of Dopamine HCl to be infused
at a rate of 5 mcg/kg/min. Your patient weighs 145 lbs. Using an IV administration set
that delivers 60 microdrops/cc, at how many microdrops/min will you infuse the IV?
81. Demerol is available in a vial labeled 50 mg in 1 cc. 100 mg of Demerol has been
prescribed IM. How many cc should you withdraw from the vial in preparing to administer
the drug?
82. 3 mg of Dilaudid has been prescribed IM. How many cc should be prepared using a vial
labeled 2 mg in 1 cc?
83. Liquid Pen-Vee K is available for po use labeled 125 mg in 5 cc. 0.2 g of Pen-Vee K has
been prescribed. You should prepare how many cc of the drug for administration?
84. You have available a vial of Folvite labeled 5 mg in 1 cc. 1 mg of Folvite has been
prescribed by the physician IM. What volume of drug will you prepare?
85. The physician has prescribed 475 mg of Vancomycin for administration IV. The
Vancomycin is available in a vial containing 500 mg in 10 cc. In preparing the drug for
administration, how many cc should you withdraw from the vial?
86. Liquid Tylenol is available for po use labeled 80 mg in 0.8 cc. 160 mg of Tylenol has
been prescribed. You should prepare how many cc of the drug for administration?
87. Ritodrine HCl is available in 10 mg unscored tablets. 20 mg has been prescribed po.
You should administer how many unscored tablets?
88. You have on hand a vial of Ampicillin labeled 250 mg. The physician has ordered 0.25 g
of Ampicillin IV. You reconstitute the drug as directed, adding 1 cc of diluent to yield a
strength of 250 mg in 1 cc. In preparing to administer the drug, how many cc should you
withdraw from the vial?
89. A physician has prescribed Claforan IM for a child weighing 20 lbs. The drug literature
recommends a maximum of 180 mg/kg/day. In checking the appropriateness of the
physician’s order, you determine that _______ of Claforan would be a maximum safe
dosage per day.
90. You have available a vial of Garamycin labeled 80 mg in 2 cc. 40 mg of Garamycin has
been prescribed by the physician IV. What volume of drug will you prepare?
91. You need to verify that a prescribed dose of Lasix po for a child weighing 35 lbs is safe.
The drug literature recommends a maximum dose of 4 mg/kg/dose. A maximum dose for
this child would be _______ per dose.
92. A physician has prescribed Vancomycin IV for a child weighing 39 lbs. The drug literature
recommends a maximum of 40 mg/kg/day. In checking the appropriateness of the
physician’s order, you determine that ______ of Vancomycin would be a maximum safe
dosage per day.
93. You need to verify that a prescribed dose of Ampicillin IV for a child weighing 26 lbs is
safe. The drug literature recommends a maximum of 400 mg/kg/day. A maximum dose
for this child would be ______ per day.
94. You need to verify that a prescribed dose of Nafcillin po for a child weighing 85 lbs is
safe. The drug literature recommends a maximum dose of 50 mg/kg/day. A maximum
dose for this child would be ______ per day.
95. A physician has prescribed Claforan IM for a child weighing 9 lbs. The drug literature
recommends a maximum of 100 mg/kg/day. In checking the appropriateness of the
physician’s order, you determine that _______ of Claforan would be a maximum safe
dosage per day.
96. You need to verify that a prescribed dose of Pen-Vee K po for a child weighing 29 lbs is
safe. The drug literature recommends a maximum of 50 mg/kg/day. A maximum dose
for this child would be ______ per day.
97. A physician has prescribed Phenobarbital po for a child weighing 25 lbs. The drug
literature recommends a maximum of 3 mg/kg/dose. In checking the appropriateness of
the physician’s order, you determine that _____ of Phenobarbital would be a maximum
safe dosage per dose.
98. You need to verify that a prescribed dose of Tobramycin IV for a child weighing 49 lbs is
safe. The drug literature recommends a maximum of 6 mg/kg/day. A maximum dose for
this child would be ______ per day.
99. A physician has prescribed Ticar IV for a child weighing 61 lbs. The drug literature
recommends a maximum of 300 mg/kg/day. In checking the appropriateness of the
physician’s order, you determine that ________ of Ticar would be a maximum safe
dosage per day.
100.
You need to verify that a prescribed dose of Ancef IV for a child weighing 32 lbs
is safe. The drug literature recommends a maximum of 80 mg/kg/day. A maximum dose
for this child would be _______ per day.
Answers
1. 30 gtts
2. 48 mg
3. 7.5 cc
4. 5 cc
5. 11 cc
6. 22 gtts
7. 780 mg
8. 2 cc
9. 1.5 cc
10. 14 gtts
11. 2 tab
12. 0.5 tab
13. 250 mg
14. 45 gtts
15. 74 gtts
16. 0.79 cc
17. 29 gtts
18. 2 cc
19. 7 cc
20. 158 mg
21. 500 mg
22. 16 gtts
23. 1,000 mg
24. 1 tab
25. 125 gtts
26. 250 mg
27. 0.5 cc
28. 2 cc
29. 21 gtts
30. 14 gtts
31. 0.38 cc
32. 275 mg
33. 250 mg
34. 2 cap
35. 795 mg
36. 944 mg
37. 500 mg
38. 125 mg
39. 31 gtts
40. 100 mg
41. 10 cc
42. 10 cc
43. 2 cc
44. 8 cc
45. 81 gtts
46. 200 mg
47. 10.5 cc
48. 10 cc
49. 1 tab
50. 0.15 mg
51. 250 mg
52. 26 gtts
53. 47 gtts
54. 100 mg
55. 5,080 mg
56. 8,310 mg
57. 4,000 mg
58. 1 cc
59. 7.9 cc
60. 20 cc
61. 28 gtts
62. 2 cc
63. 3 cap
64. 500 mg
65. 250 mg
66. 59 gtts
67. 0.5 cc
68. 44 mg
69. 250 mg
70. 500 mg
71. 500 mg
72. 4.5 cc
73. 100 mg
74. 20 gtts
75. 37 gtts
76. 1,000 mg
77. 42 gtts
78. 2 cc
79. 0.5 cc
80. 12 gtts
81. 2 cc
82. 1.5 cc
83. 8 cc
84. 0.2 cc
85. 9.5 cc
86. 1.6 cc
87. 2 tab
88. 1 cc
89. 1,638 mg
90. 1 cc
91. 64 mg
92. 708 mg
93. 4,720 mg
94. 1, 930 mg
95. 410 mg
96. 660 mg
97. 34 mg
98. 134 mg
99. 8, 310 mg
100. 1, 160 mg