Nursing 155
Practice Medication Calculations Test
DIRECTIONS: Must label all answers (use same units and time for RSD and Order). Use dimensional analysis to
work your problems. Round off answers to the nearest hundredth, unless otherwise directed. Must show work on
the quiz! Do not round off while you are working the problem. Remember to put your leading zeros and no
trailing zeros. If your answer is in drops/min, you may need to give a range. Remember to put the appropriate
answer on the Answer line provided. The answer on the line will be the only answer accepted. No partial credit
will be given.
1. Continuous tube feeding with 3/4 strength Nepro is infusing at 45 ml/hr. It is time to pour a new can in the
feeding bag. How much water will you need to add if each can contains 200 ml?
4
200 ml Can X 3
= 266.67 mL Total - 200 mL Can = 66.67 mL Water
Answer: ____66.67_________ ml of Water ______266.67_________ ml’s Total
2. A child is placed on tube feedings q4h. Order is to give 80 ml of 1/3 strength Enfamil. How many mls of
Enfamil and how many ml’s of water will you mix together?
1
80 ml Total X 3
= 26.67 mL Enfamil
80 mL Total – 26.67 mL Enfamil = 53.33 mL Water
Answer: __26.67___________ ml of Enfamil ____53.33___________ ml’s of Water
3. A patient has a bolus (single) feeding of 280 mls of 4/5 strength Glucerna. Cases of 6-ounce cans of Glucerna
are available in the supply room. How many ml’s of Glucerna and how many mls of water will the nurse
correctly administer in a single feeding?
4
280 ml Total X 5
= 224 mL Glucerna
280 mL Total – 224 mL Glucerna = 56 mL Water
Answer: _____224________ ml of Glucerna ______56_________ ml’s of Water
1
, 4. Digoxin 0.125 mg is ordered PO daily. Using the label below, (1) how many tabs will you administer? The RSD
for Digoxin is 125 – 500 mcg daily. (2) Is the order safe to give?
0.125𝑚𝑚𝑚𝑚 1𝑡𝑡𝑡𝑡𝑡𝑡
(1) 1
X 0.25𝑚𝑚𝑚𝑚 = 0.5 tab
0.125𝑚𝑚𝑚𝑚 1000𝑚𝑚𝑚𝑚𝑚𝑚
(2) RSD: 125 – 500 mcg/day Order = 𝑑𝑑𝑑𝑑𝑑𝑑
𝑋𝑋 1 𝑚𝑚𝑚𝑚
= 125 mcg/day
(1) Answer: __0.5 tab______________
(2) Answer (Safe?) Yes or No: ____yes___________
RSD:___500 mcg daily (0.5mg daily)_________
Order:__125 mcg daily (0.125mg daily)________________
5. Cephalexin 0.5 grams PO q6h is prescribed. (1) How many mls) will you give? The RSD for Cephalexin is 1200
mg/day. (2) Is the ordered dose safe to give?
0.5𝑔𝑔 5𝑚𝑚𝑚𝑚 1000𝑚𝑚𝑚𝑚
(1) 1
X 250𝑚𝑚𝑚𝑚 X 1𝑔𝑔
= 10ml
0.5𝑔𝑔 1000𝑚𝑚𝑚𝑚 4(𝑞𝑞6ℎ)
(2) RSD: 1200 mg/day Order = 𝑞𝑞6ℎ
𝑋𝑋 1 𝑔𝑔
X 𝑑𝑑𝑑𝑑𝑑𝑑
= 2000 mg/day
(1) Answer: ________10ml________
(2) Answer (Safe?) Yes or No: _____No___________
RSD:____1200 mg/day_____ Order:_____2000 mg/day________________
2
Practice Medication Calculations Test
DIRECTIONS: Must label all answers (use same units and time for RSD and Order). Use dimensional analysis to
work your problems. Round off answers to the nearest hundredth, unless otherwise directed. Must show work on
the quiz! Do not round off while you are working the problem. Remember to put your leading zeros and no
trailing zeros. If your answer is in drops/min, you may need to give a range. Remember to put the appropriate
answer on the Answer line provided. The answer on the line will be the only answer accepted. No partial credit
will be given.
1. Continuous tube feeding with 3/4 strength Nepro is infusing at 45 ml/hr. It is time to pour a new can in the
feeding bag. How much water will you need to add if each can contains 200 ml?
4
200 ml Can X 3
= 266.67 mL Total - 200 mL Can = 66.67 mL Water
Answer: ____66.67_________ ml of Water ______266.67_________ ml’s Total
2. A child is placed on tube feedings q4h. Order is to give 80 ml of 1/3 strength Enfamil. How many mls of
Enfamil and how many ml’s of water will you mix together?
1
80 ml Total X 3
= 26.67 mL Enfamil
80 mL Total – 26.67 mL Enfamil = 53.33 mL Water
Answer: __26.67___________ ml of Enfamil ____53.33___________ ml’s of Water
3. A patient has a bolus (single) feeding of 280 mls of 4/5 strength Glucerna. Cases of 6-ounce cans of Glucerna
are available in the supply room. How many ml’s of Glucerna and how many mls of water will the nurse
correctly administer in a single feeding?
4
280 ml Total X 5
= 224 mL Glucerna
280 mL Total – 224 mL Glucerna = 56 mL Water
Answer: _____224________ ml of Glucerna ______56_________ ml’s of Water
1
, 4. Digoxin 0.125 mg is ordered PO daily. Using the label below, (1) how many tabs will you administer? The RSD
for Digoxin is 125 – 500 mcg daily. (2) Is the order safe to give?
0.125𝑚𝑚𝑚𝑚 1𝑡𝑡𝑡𝑡𝑡𝑡
(1) 1
X 0.25𝑚𝑚𝑚𝑚 = 0.5 tab
0.125𝑚𝑚𝑚𝑚 1000𝑚𝑚𝑚𝑚𝑚𝑚
(2) RSD: 125 – 500 mcg/day Order = 𝑑𝑑𝑑𝑑𝑑𝑑
𝑋𝑋 1 𝑚𝑚𝑚𝑚
= 125 mcg/day
(1) Answer: __0.5 tab______________
(2) Answer (Safe?) Yes or No: ____yes___________
RSD:___500 mcg daily (0.5mg daily)_________
Order:__125 mcg daily (0.125mg daily)________________
5. Cephalexin 0.5 grams PO q6h is prescribed. (1) How many mls) will you give? The RSD for Cephalexin is 1200
mg/day. (2) Is the ordered dose safe to give?
0.5𝑔𝑔 5𝑚𝑚𝑚𝑚 1000𝑚𝑚𝑚𝑚
(1) 1
X 250𝑚𝑚𝑚𝑚 X 1𝑔𝑔
= 10ml
0.5𝑔𝑔 1000𝑚𝑚𝑚𝑚 4(𝑞𝑞6ℎ)
(2) RSD: 1200 mg/day Order = 𝑞𝑞6ℎ
𝑋𝑋 1 𝑔𝑔
X 𝑑𝑑𝑑𝑑𝑑𝑑
= 2000 mg/day
(1) Answer: ________10ml________
(2) Answer (Safe?) Yes or No: _____No___________
RSD:____1200 mg/day_____ Order:_____2000 mg/day________________
2
