Dosage Calculation for Nurses Exam Practice Tests
Course Introduction
Dosage Calculation for Nurses is a foundational course designed to equip nursing students and practicing nurses with the essential mathematical skills required for safe and accurate medication administration. The course covers key concepts such as unit conversions, calculation of oral and parenteral dosages, IV flow rates, pediatric dosing, and the interpretation of medication orders. Emphasis is placed on understanding drug labels, minimizing medication errors, and applying critical thinking to real-life clinical scenarios. By mastering dosage calculations, students will be prepared to uphold patient safety and deliver effective nursing care in various healthcare settings.
Recommended Textbook
Calculate with Confidence 5th Edition by Deborah C. Gray Morris
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25 Chapters
409 Verified Questions
409 Flashcards
Source URL: https://quizplus.com/study-set/3657 Page 2
Chapter 1: Roman Numerals
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11 Verified Questions
11 Flashcards
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Sample Questions
Q1) Write the following Arabic number as a Roman numeral.(Use lowercase letters.)18 =
Answer: xviii
Q2) Perform the indicated operation and record the result in Roman numerals.(Use lowercase letters.)10 + 2 = _____
Answer: xii
Q3) Perform the indicated operation and record the results in lowercase Roman numerals.30 \(\times\) 6 = _____
Answer: xxiv
Q4) Perform the indicated operation and record the result in Roman numerals.(Use lowercase letters.)3 \(\times\)10 = _____
Answer: xxx
Q5) Perform the indicated operation and record the result in Roman numerals.(Use lowercase letters.)29 \(\times\) 1 = _____
Answer: xxviii
Q6) Write the following Arabic number as a Roman numeral.(Use lowercase letters.)11 1/2 = _____
Answer: xiss
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Chapter 2: Fractions
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28 Verified Questions
28 Flashcards
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Sample Questions
Q1) Change the following improper fraction to a whole or mixed number.325/16 = _____ Answer: 20 5/16
Q2) Indicate which fraction is the largest.1/100,1/150,1/200: _____ Answer: 1/100
Q3) Change the following mixed number to an improper fraction.6 7/10 = _____ Answer: 67/10
Q4) Reduce the following fraction to lowest terms.105/135 = _____ Answer: 7/9
Q5) Perform the indicated operation and reduce to lowest terms.4/5 \(\times\) 5/16 = Answer: 1/4
Q6) Change the following mixed number to an improper fraction.12 1/8 = _____ Answer: 97/8
Q7) Indicate the largest number in the following set.5/6,5/8: _____ Answer: 5/6
Q8) Reduce the following fraction to lowest terms.54/81 = _____ Answer: 2/3
Q9) Express the following improper fraction as a mixed number.Reduce to lowest terms.15/13 = _____ Answer: 1 2/13 Page 4
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Page 5
Chapter 3: Decimals
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Sample Questions
Q1) Identify the decimal with the largest value in the following set. Answer: 0.86
Q2) Round off the following decimal to the nearest thousandth. Answer: 0.333
Q3) Change the following to a decimal.Carry division three places as indicated.Do not round off.1/64 = _____ Answer: 0.015
Q4) Round off the following decimal to the nearest tenth. Answer: 1.5
Q5) Change the following to a decimal.Carry division three places as indicated.Do not round off.5/18 = _____ Answer: 0.277
Q6) Change the following to a decimal. Answer: 0.0125
Q7) Round off the following decimal to the nearest thousandth. Answer: 0.625
Q8) Round off the following decimal to the nearest tenth. Answer: 3.5
6
Q9) Round off the following decimal to the nearest tenth. Answer: 28.7
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Page 7
Chapter
4: Ratio and Proportion
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11 Verified Questions
11 Flashcards
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Sample Questions
Q1) Solve for x.
2.2:1 = x:145
x = _____
Q2) Solve for x.1/0.05 = x/0.1
x = _____
Q3) Express the following dosage as a ratio.A capsule contains 450 mg of medication:
Q4) Solve for x in the following.4/2.6 = 5/x
x = _____
Q5) Solve for x in the following.11:121 = 3:x
x = _____
Q6) Solve for x in the following.500:3 = 350:x
x = _____
Q7) Solve for x.Round to the nearest tenth.1:3.6 = x:170
x = _____
Q8) Express the following dosage as a ratio.An injectable solution contains 500 mg in each 0.7 mL: _____
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Chapter 5: Percentages
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8 Verified Questions
8 Flashcards
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Sample Questions
Q1) Change the following percentage to a fraction. Reduce to lowest terms.
37.5% = _____
Q2) Find the following percentage.8% of 32 = _____
Q3) Change the following percentage to a ratio and its decimal equivalent.8% = _____; _____
Q4) Find the following percentage.16% of 79 = _____
Q5) Change the following percentage to a fraction.Reduce to lowest terms.
Q6) Change the following percentage to a ratio and its decimal equivalent.45% = _____; _____
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9
Chapter 6: Metric System
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17 Verified Questions
17 Flashcards
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Sample Questions
Q1) 1 L = _____ mL
Q2) 15 mg = _____ mcg
Q3) 0.075 mg = _____ mcg
Q4) 0.081 g = _____ mg
Q5) 3,120 mcg = _____ mg
Q6) 3,550 mL = _____ L
Q7) 25.6 mg = _____ g
Q8) Complete the following sentence with the correct word(s).The units of the metric system are as follows: ____________________ (length),____________________ (volume),and ____________________ (weight).
Q9) 7.45 mL = _____ L
Q10) 1.57 kg = _____ g
Q11) 54.6 g = _____ kg
Q12) 1 kg = _____ g
Q13) 26 mcg = _____ mg
Q14) 8.3 L = _____ mL Page 10
Q15) 450 mL = _____ L
Q16) 5.2 kg = _____ g
Q17) 1 mg = _____ g
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Page 11
Chapter 7: Apothecary and Household Systems
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18 Verified Questions
18 Flashcards
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Sample Questions
Q1) 10 tbs = _____ mL
Q2) 50 mL = _____ qt
Q3) 6 1/4 qt = _____ mL
Q4) 5 t = _____ mL
Q5) 15 mL = _____ oz
Q6) 16 T = _____ mL
Q7) drop: _____
Q8) 2 1/4 cup = _____ mL
Q9) 30 mL = _____ oz
Q10) ounce: _____
Q11) 750 mL = _____ pt
Q12) 255 mL = _____ oz
Q13) The correct abbreviation for teaspoon is:
A) Tsp
B) tsp
C) Tbs
D) tbs
12
Q14) 60 mg = gr _____
Q15) gr 4 1/4 = _____ mg
Q16) gr 1/15 = _____ mg
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Page 13
Chapter 8: Converting Within and Between Systems
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Sample Questions
Q1) A client's intake was the following
1 1/4 cup of coffee (1 cup = 8 oz)4 oz cranberry juice
1 1/2 bowls of chicken broth (1 bowl = 6 oz)3 1/2 glasses of water (1 glass = 6 oz)The client voided urine as follows: 260 mL,180 mL,500 mL,and 425 mL
Calculate the client's intake and output in mL.
a.Intake: _____ mL
b.Output: _____ mL
Q2) 0.3 mg = _____ g
Q3) 0.005 g = _____ mg
Q4) 1 mg = _____ g
Q5) gr 90 = _____ g
Q6) A client has an order for Maalox 30 mL p.o.at bedtime.How many tablespoons will the nurse instruct the client to take? _____ tablespoons
Q7) Calculate the client's intake in milliliters.Apple juice 2 ounces
Chicken broth 4 ounces
Gelatin dessert 3 ounces
Hot tea 5 ounces
Total mL = _____
Q8) 28.2 kg = _____ lb
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Chapter 9: Additional Conversions Useful in the Health Care Setting
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Sample Questions
Q1) 16 oz = _____ lb
Q2) 18S1U1P1\(\circ\)S1S1P0 C = _____ S1U1P1\(\circ\)S1S1P0 F
Q3) 6.4 lb = _____ kg
Q4) 9 lb 9 oz = _____ kg
Q5) 63 kg = _____ lb
Q6) 7.6 kg = _____ lb
Q7) An IV started at 0550 is to be completed in 5 hr 10 min.Determine the completion time (military time)._____
Q8) 39 3/4 lb = _____ kg
Q9) 34 mm = _____ cm
Q10) 1 kg = _____ lb
Q11) 20.8 kg = _____ lb
Q12) In traditional time,0518 is:
A) 5:18 AM
B) 5:18 PM
Q13) 41 lb 2 oz = _____ kg
15
Q14) 39S1U1P1\(\circ\)S1S1P0 C = _____ S1U1P1\(\circ\)S1S1P0 F
Q15) 1 cm = _____ mm
Q16) An IV started at 3:10 AM is to be completed in 12 hr 30 min.Determine the completion time (traditional time)._____
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Page 16
Chapter 10: Medication Administration
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Sample Questions
Q1) A nurse charts medications that she administered at 10 AM on October 1st for 10 AM on October 2nd: _______________
Q2) After administering a medication,the nurse should:
A) Pour the medications for the next administration time.
B) Document medication given prior to administering.
C) Order the next dosage needed from the pharmacy.
D) Document the time of administration.
Q3) A nurse enters a room to administer medications to a client.The order is for Prednisolone 2.5 mg p.o.
b.i.d.The nurse administers prednisone 25 mg p.o.:
Q4) A nurse has an order for heparin 5,000 units subcut for a client in room 407 whose name is Henry Jones (initials HJ).The nurse enters room 408 and administers the medication to Horace Jackson (initials HJ): _______________
Q5) A nurse who administers a medication that is unsafe is liable for the error._____
A)True
B)False
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Page 17
Chapter 11: Understanding and Interpreting Medication
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12 Verified Questions
12 Flashcards
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Sample Questions
Q1) Immediately: _____
Q2) Complete the following sentence with the correct word or number.To ensure accuracy and prevent misinterpretation,place a _____ before the decimal point.
Q3) Complete the following sentence with the correct word or number.A medication order is written without a frequency.The nurse should
Q4) The nurse is responsible for determining the times for a medication ordered t.i.d.at an institution._____
A)True
B)False
Q5) "Administer Colace 100 mg by mouth three times a day" can be written on an order sheet as:
A) Colace 100 mg p.o.t.i.d.
B) Colace 100 mg p.o.
C)i.d.
D) Colace mg 100.0 p.o.q.i.d.
E) Colace MG 100 p.o.t.i.d.
Q6) Twice a day: _____
Q7) Every hour: _____
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Chapter 12: Medication Administration Records and Drug Distribution Systems
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15 Verified Questions
15 Flashcards
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Sample Questions
Q1) Which medications are ordered to be administered "as necessary"?
Q2) What are the client's medication allergies? ______________
Q3) How many times a day is Lasix administered? _______________
Q4) What would be the appropriate interpretation for the following order? Demerol 50 mg IM stat? Administer:_______________
A) Demerol 50 mg IM when needed
B) Demerol 50 mg IM as desired
C) Demerol 50 mg IM on call to OR
D) Demerol 50 mg IM immediately
Q5) A client has a gastrostomy tube (GT)in place.The health care provider ordered the medication p.o.What action would be appropriate for the nurse to take?
A) Dilute the p.o.medication with water and administer by GT.
B) Administer the medication p.o.as ordered.
C) Clarify the order with the health care provider who wrote the order.
D) Clarify the order with the charge nurse.
Q6) K-Dur 20 mEq is ordered.What does mEq mean? _______________
Page 19
Q7) If the digoxin was last administered on 1/16/09 at 9 AM,what is the next date and time it will be administered? _______________
Q8) How many times in a 24-hour period will Colace be administered?
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Page 20
Chapter 13: Reading Medication Labels
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14 Verified Questions
14 Flashcards
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Sample Questions
Q1) A medication label reads "Calan SR (verapamil hydrochloride)240 mg sustained release caplets." The form is:
A) caplets
B) sustained release caplets
C) 240 mg
D) verapamil hydrochloride
Q2) If a medication label reads "Ambien (zolpidem tartrate)5 mg tablets,Searle," the medication's generic name is:
A) Ambien
B) Searle
C) zolpidem tartrate
D) tablets
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Chapter 14: Dosage Calculation Using the Ratio and Proportion
Method
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12 Verified Questions
12 Flashcards
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Sample Questions
Q1) Order: Clindamycin 0.6 g IV q12h
Available: Clindamycin 300 mg per 2 mL
Q2) Order: Thorazine 15 mg IM stat
Available: Thorazine 25 mg per mL
Q3) Order: Thorazine 25 mg p.o.t.i.d.Available: Thorazine syrup labeled 10 mg per 5 mL
Q4) Order: Ampicillin 0.375 g IM q6h
Available: Ampicillin 250 mg per mL
Q5) Order: Heparin 2,500 units subcut stat
Available: Heparin labeled 10,000 units per mL (Express answer in hundredths.)
Q6) Order: Compazine 8 mg p.o.stat
Available: Compazine syrup labeled 5 mg per 5 mL
Q7) Order: Ketorolac 16 mg IV q6h p.r.n.for pain
Available: Ketorolac 30 mg per mL
Q8) Order: Raloxifene HCl 60 mg p.o.
b.i.d.
Available: Raloxifene HCl tablets labeled 60 mg per tablet
Q9) Order: Zofran 7 mg p.o.
b.i.d.
Available: Zofran oral solution labeled 4 mg per 5 mL Page 22
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Page 23
Chapter 15: Dosage Calculation Using the Formula Method
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12 Verified Questions
12 Flashcards
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Sample Questions
Q1) Order: Heparin 2,500 units subcut stat
Available: Heparin labeled 10,000 units per mL (Express answer in hundredths.)
Q2) Order: Clindamycin 0.6 g IV q12h
Available: Clindamycin 300 mg per 2 mL
Q3) Order: Ketorolac 16 mg IV q6h p.r.n.for pain
Available: Ketorolac 30 mg per mL
Q4) Order: Raloxifene HCl 60 mg p.o. b.i.d.
Available: Raloxifene HCl tablets labeled 60 mg per tablet
Q5) Order: Compazine 8 mg p.o.stat
Available: Compazine syrup labeled 5 mg per 5 mL
Q6) Order: Calcijex 1.5 mcg IV daily on Mon.,Wed.,Fri.Available: Calcijex 1 mcg per mL
Q7) Order: Ampicillin 0.375 g IM q6h
Available: Ampicillin 250 mg per mL
Q8) Order: Amoxil 0.5 g p.o.q6h
Available: Amoxil capsules labeled 250 mg per capsule
Q9) Order: Thorazine 15 mg IM stat
Available: Thorazine 25 mg per mL
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Chapter 16: Dosage Calculation Using the Dimensional
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Sample Questions
Q1) Order: Thorazine 25 mg p.o.t.i.d.Available: Thorazine syrup labeled 10 mg per 5 mL
Q2) Order: Compazine 8 mg p.o.stat
Available: Compazine syrup labeled 5 mg per 5 mL
Q3) Order: Amoxil 0.5 g p.o.q6h
Available: Amoxil capsules labeled 250 mg per capsule
Q4) Order: Ampicillin 0.375 g IM q6h
Available: Ampicillin 250 mg per mL
Q5) Order: Zofran 7 mg p.o.
b.i.d.
Available: Zofran oral solution labeled 4 mg per 5 mL
Q6) Order: Clindamycin 0.6 g IV q12h
Available: Clindamycin 300 mg per 2 mL
Q7) Order: Ketorolac 16 mg IV q6h p.r.n.for pain
Available: Ketorolac 30 mg per mL
Q8) Order: Raloxifene HCl 60 mg p.o.
b.i.d.
Page 25
Available: Raloxifene HCl tablets labeled 60 mg per tablet
Q9) Order: Thorazine 15 mg IM stat
Available: Thorazine 25 mg per mL
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Chapter 17: Calculation of Oral Medications
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32 Verified Questions
32 Flashcards
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Sample Questions
Q1) An elongated tablet for easy swallowing is referred to as a _______________.
Q2) Order: Coreg 6.25 mg p.o.
a.How many tablets should the client receive per dosage? _____ tab(s)
b.How many milligrams will the client receive per day? _____ mg b.i.d.
Available: Coreg tablets labeled 3.125 mg
Q3) Order: Synthroid 0.15 mg p.o.daily
Available: Synthroid tablets labeled 75 mcg
Dosage: _____ tab(s)
Q4) Enteric-coated tablets and time-release tablets should never be _______________.
Q5) Sublingual tablets must never be _______________ but placed _______________ the tongue.
Q6) Order: Ampicillin 1 g p.o.as an initial dosage and then 500 mg p.o.q.i.d.\(\times\) 7 days thereafter
Available: Ampicillin capsules labeled 500 mg
a.How many capsules will you administer for the initial dosage? _____ cap(s)
b.What is the total number of capsules needed for the subsequent dosages for 7 days? _____ cap(s)
Page 27
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Chapter 18: Parenteral Medications
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Sample Questions
Q1) Order: Heparin 45,000 units IV in 500 mL D5W
Available: Heparin labeled 10,000 units per mL
How many milliliters will you add to the IV? _____ mL
Q2) Order: Furosemide 15 mg IM every day
Available: Furosemide labeled 20 mg per 2 mL
How many milliliters will you administer? _____ mL
Q3) If a nurse calculates a dosage of 3.39 mL of medication,which size syringe should the nurse select? _____ What would be the nearest measurable dose on the syringe?
Q4) The route that is used for diagnostic purposes is called _______________.
Q5) The term used for injectable medications is _______________.
Q6) Order: Levothyroxine sodium 0.3 mg IV daily
Available: Levothyroxine sodium 200 mcg per 5 mL
How many milliliters will you add to the IV? _____ mL
Q7) The calibrations on a syringe that indicate the capacity can be found on the
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Chapter 19: Reconstitution of Solutions
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Sample Questions
Q1) 1/4 strength Ensure 8 oz p.o.q4h for 24 hours
Q2) Prepare irrigant 250 mL 1/2 strength solution:
Q3) 800 mL of 3/4 strength Sustacal via gastrostomy over 6 hours
Q4) 360 mL of 1/4 strength Ensure percutaneous endoscopic (PEG)tube over 4 hours
Q5) a.Total dosage of vial: _____
b.Type of diluents specified: _______________
c.How much diluent must be added to reconstitute the medication? _____
d.What will be the volume of the reconstituted solution? _____
e.Dosage strength of the reconstituted solution: _______________
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Chapter 20: Insulin
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Sample Questions
Q1) What is the difference between the calibration of units on the 1-mL insulin syringe and on the Lo-Dose syringe? ______________________________
Q2) U-100 on the label of an insulin vial means:
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Chapter 21: Intravenous Solutions and Equipment
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Sample Questions
Q1) An electronic infusion control device used to administer IV fluids is referred to as a
Q2) 1,000 mL (1 L)of 5% dextrose in water to infuse at a rate of 100 mL per hour
Q3) 1,000 mL (1 L)of Lactated Ringer solution every 8 hours
Q4) List the components and percentage strengths of the following IV solutions.
a.D5¼S
b.D5NS 10 mEq KCl
c.D5RL
Q5) _______________ devices allow a client to self-administer pain medication.
Q6) The IV line that can be used to administer medications and solutions and can be connected to a port on the main infusion is called _______________.
Q7) The name for the main infusion administration set is _______________.
Q8) 500 mL 1/2 NS sodium chloride (NaCl): _____
Q9) 5 L D10W dextrose: _______________
Q10) In IV fluid abbreviations,D5NS identifies what IV fluid? _______________
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Chapter 22: Intravenous Calculations
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Sample Questions
Q1) 100 units of Regular Humulin insulin in 250 mL 0.9% NS to infuse at 4 mL/hr.How many units per hour will be delivered? _____
Q2) 3,000 mL D5W at 125 mL/hr
a.10 gtt/mL _____
b.15 gtt/mL _____
c.20 gtt/mL _____
d.60 gtt/mL _____
Q3) D5 1/2 NS is infusing at 28 macrogtt/min.The drop factor is 10 gtt/mL.How much fluid volume will the client receive in 8 hours? _____
Q4) An IV of 1,000 mL 0.9 % NS is infusing at 18 macrogtt/min.The drop factor is 15 gtt/mL.How long will it take for the IV to infuse? (Express time in hours and minutes.):
Q5) 100 mL D5 ½/2 NS at 40 mL/hr
a.Determine the infusion time: _____
b.The IV was started at noon.When will the infusion be complete? _____
Q6) Order: Digoxin 0.25 mg IV push.Infuse slowly over 5 minutes.Available: Digoxin 0.5 mg/2 mL
How many milliliters should be infused per minute? _____
Q7) Clindamycin 600 mg in 100 mL D5W over 1 1/2 hours: _____
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Chapter 23: Heparin Calculations
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Sample Questions
Q1) A client weighs 165 lb.Order: Administer a bolus of heparin sodium IV.The hospital protocol is 80 units/kg.How many units will you administer? _____
Q2) Order: 40 units/kg/hr heparin IV.The client weighs 50 kg.How many units should the client receive per hour? _____
Q3) Order: 10,000 units of heparin in 500 mL 0.9% NS to infuse at 120 mL/hr units/hr = _____
Q4) Order: Infuse heparin at 800 units/hr IV from a solution containing 40,000 units in 1,000 mL D5W.How many milliliters will infuse per hour? _____ mL
Q5) Order: 45,000 units of heparin in 1,000 mL D5 ½/2 NS at 25 mL/hr units/hr = _____
Q6) A client weighs 220 lb.The hospital protocol for IV heparin drip is 14 units/kg/hr.How many units per hour should the client receive? _____
Q7) Order: 25,000 units of heparin in 250 mL D5W to infuse at 8 mL/hr units/hr = _____
Q8) Order: Infuse heparin at 2,000 units/hr IV from a solution containing 20,000 units of heparin in 500 mL D5W.How many milliliters will infuse per hour? _____ mL
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Chapter 24: Critical Care Calculations
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Sample Questions
Q1) Order: Dobutamine 2.5 mcg/kg/min for a client who weighs 193 lb
Available: Dobutamine 250 mg in 250 mL D5W
a.What is the client's weight in kilograms? _____ (to the nearest tenth)
b.Calculate the rate in mL/hr required to infuse 2 mcg/kg/min: _____
Q2) Esmolol is ordered for a client.The solution available is 2.5 g in 250 mL D5W.The order is to infuse 32 mL/hr.
a.mg/hr: _____
b.mg/min: _____
Q3) A client is receiving dopamine 800 mg in 500 mL D5W infusing at a rate of 30 mL/hr
a.mg/hr: _____
b.mcg/min: _____
Q4) A client is receiving procainamide 1 g in 500 mL D5W at 120 mL/hr
a.mg/hr: _____
b.mg/min: _____
Q5) A client weighing 80 kg has an order for Intropin to infuse at 8 mcg/kg/min.The solution available is 800 mg Intropin in 500 mL D5W.
a.mcg/min: _____
b.mL/hr: _____
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Chapter 25: Pediatric and Adult Dosage Calculation Based on Weight
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Sample Questions
Q1) The recommended dosage of Zovirax for a child who is immunosuppressed and has a varicella-zoster infection is 500 mg/m<sup>2</sup>.The child weighs 26.5 lb and is 58 inches tall.
a.What is the child's BSA? _____
b.What is the recommended dosage? _____
Q2) The recommended dosage of methotrexate is 25 to 75 mg/m<sup>2</sup>/wk.The child's height is 30 inches and the weight is 25 lb.
a.What is the child's BSA? _____
b.What is the recommended dosage range? _____
Q3) An adult who is 67 inches tall and weighs 175 lb: _____ m<sup>2</sup>
Q4) The recommended dosage of Paraplatin for ovarian cancer is 360 mg/m<sup>2</sup>.The client's BSA is 1.67 m<sup>2</sup>.What dosage should the client receive? _____
Q5) Order: Epinephrine 0.25 mg IV stat
Available: Epinephrine 0.1 mg/mL
How many milliliters will you prepare to administer? _____ mL
Q6) An adolescent who measures 157.5 cm and weighs 59.1 kg: _____ m<sup>2</sup>
Q8) 80 cm and 11 kg: _____ m<sup>2</sup> Page 35
Q7) A child who measures 26 inches and weighs 36 lb: _____ m<sup>2</sup>
Q9) 22 inches and 10 lb: _____ m<sup>2</sup>
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