Clinical Calculations
Test Bank
Course Introduction
Clinical Calculations is a foundational course designed to equip healthcare students with the mathematical skills necessary for safe and accurate medication administration. The course covers essential concepts such as dosage calculations, intravenous fluid rates, conversions between measurement systems, and calculation of safe pediatric and adult medication doses. Emphasis is placed on critical thinking, error prevention, and real-world application in clinical scenarios, ensuring students are proficient in interpreting physician orders, labeling, and documentation. This course lays the groundwork for clinical competency and patient safety in various healthcare settings.
Recommended Textbook
Calculate with Confidence 7th Edition by Morris
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25 Chapters
610 Verified Questions
610 Flashcards
Source URL: https://quizplus.com/study-set/3538
Page 2
Chapter 1: Roman Numerals
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11 Verified Questions
11 Flashcards
Source URL: https://quizplus.com/quiz/70252
Sample Questions
Q1) Write the following Arabic number as a lowercase Roman numeral.
18 = _____
Answer: xviii
Q2) Write the following Arabic number as a lowercase Roman numeral. \(11 ^ { 1 } / _2\) = _____
Answer: xiss
Q3) Perform the indicated operation and record the result in lowercase Roman numerals.
7 * 2 = _____
Answer: xiv
Q4) Perform the indicated operation and record the result in lowercase Roman numerals.
6 * 3 = _____
Answer: xviii
Q5) Perform the indicated operation and record the result in lowercase Roman numerals.
12 ÷ 2 = _____ Answer: vi
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Chapter 2: Fractions
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42 Verified Questions
42 Flashcards
Source URL: https://quizplus.com/quiz/70253
Sample Questions
Q1) Perform the indicated operation with fractions. Reduce to lowest terms as indicated. 1/5 + 1/2 + 1/4 = _____ Answer: 19/20
Q2) Reduce the following fraction to lowest terms. 39/65 = _____ Answer: 3/5
Q3) Perform the indicated operation with fractions. Reduce to lowest terms as indicated. 6 10/12 * 15/3 = _____ Answer: 34 1/6
Q4) A client received 2 1/2 ounces (oz) of medication at breakfast and 2 1/3 oz at lunch. How many oz of medication has the client received? _____ Answer: 4 5/6 oz
Q5) Reduce the following fraction to lowest terms. 34/102 = _____ Answer: 1/3
Q6) Reduce the following fraction to lowest terms. 105/135 = _____ Answer: 7/9
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Chapter 3: Decimals
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35 Verified Questions
35 Flashcards
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Sample Questions
Q1) A client received 0.375 mg of a medication for two days, 0.125 mg for three days, and 0.0625 mg for four days. What is the total amount of medication taken? ______ Answer: 1.375 mg
Q2) Round off the following decimal to the nearest thousandth. 0.6253 = _____ Answer: 0.625
Q3) Round off the following decimal to the nearest hundredth. 2.457 = _____ Answer: 2.46
Q4) Change the following decimal to a fraction. Reduce to lowest terms if indicated. 7.025 = _____ Answer: 7 1/40
Q5) Identify the decimal with the largest value in the following set.
0.7, 0.67, 0.86: _____ Answer: 0.86
Q6) A client weighed 165.4 pounds (lb) before getting ill. After a lengthy recovery the client weighed 148.6 lb. How much weight did the client lose? _____ Answer: 16.8 lb
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Chapter 4: Ratio and Proportion
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/70255
Sample Questions
Q1) Solve for x.
2.2:1 = x:145
x = _____
Q2) If three tablets (tabs) contain 60 mg, how many tabs would need to be given for 80 mg? ______
Q3) Solve for x in the following.
0.5/0.125 = x/4
x = _____
Q4) The nurse is instructed to administer 500 mL of a solution every 8 hours (hrs). How many hrs will be needed to administer 1,500 mL of solution? _____
Q5) Solve for x in the following.
500:3 = 350:x
x = _____
Q6) If 100 grams (g) of ice cream contains 20 g of fat, how many g of fat are there in 300 g of ice cream? ______
Q7) Solve for x.
42:7 = 48:x
x = ______
Q8) Solve for x. \(\frac { 0.25 } { 2 } = \frac { x } { 1 / 2 }\) x = _____
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Chapter 5: Percentages
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20 Verified Questions
20 Flashcards
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Sample Questions
Q1) Convert 42.5% to decimal form. _____
Q2) A client has received 45% of a 500 mL bag of intravenous (IV) solution. How many mL of IV solution has the client received? _____
Q3) Convert 0.925 to a percent. _____
Q4) Find the following percentage. 8% of 32 = _____
Q5) Find the following percentage. \(\frac { 9 } { 10 } \%\) of 2,000 = _____
Q6) Change the following percentage to a ratio and its decimal equivalent. 8% = _____; _____
Q7) Following exercise, a client's pulse rate increased from 80 to 95. What is the percent of increase in the client's pulse rate? (State answer to the nearest tenth.) _____
Q8) Convert 84.75% to decimal form. _____
Q9) A client who weighed 210 pounds (lb) lost 30 lb. What was the percent of decrease in the client's weight? (State answer to the nearest whole percent.) _____
Q10) Find the following percentage. 16% of 79 = _____
Q11) Change the following percentage to a ratio. 0.4% = _____
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Chapter 6: Metric System
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43 Verified Questions
43 Flashcards
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Sample Questions
Q1) Directions: Apply the guidelines relating to the use of leading and trailing zeros and express the following metric notations correctly.
.65 mL
Q2) Directions: Write the equivalent indicated. 3,120 mcg = _____ mg
Q3) Directions: Write the equivalent indicated.
350,000 mcg = ________ mg
Q4) Directions: Write the equivalent indicated.
26 mcg = _____ mg
Q5) Eight-tenths of a milliliter:
A) 8/10 ml
B) .8 mL
C) 0.8 mL
D) ml 0.8
Q6) Directions: Write the equivalent indicated. 1 kg = _____ g
Q7) Directions: Write the equivalent indicated.
8.3 L = _____ mL
Q8) Directions: Write the equivalent indicated.
1 L = _____ mL
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Chapter 7: Apothecary and Household Systems
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33 Verified Questions
33 Flashcards
Source URL: https://quizplus.com/quiz/70258
Sample Questions
Q1) Directions: Write the abbreviation for the term. teaspoon: _____
Q2) Directions: Write the equivalent indicated. 195 mL = ________ oz
Q3) Directions: Express the following value correctly.
5.5 Tsp
Q4) Milliequivalent is a unit used to measure the ionic activity of a medication. A)True B)False
Q5) Directions: Write the equivalent indicated. 5 t = _____ mL
Q6) Directions: Write the abbreviation for the term. drop: _____
Q7) Directions: Write the equivalent indicated. 15 mL = _____ oz
Q8) Directions: Write the equivalent indicated. 50 mL = _____ qt
Q10) Directions: Write the equivalent indicated. 10 1/3 tbs = _______ mL Page 9
Q9) Directions: Write the equivalent indicated. \(6^1 / _4\) qt = _____ mL
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Page 10
Chapter 8: Converting Within and Between Systems
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27 Verified Questions
27 Flashcards
Source URL: https://quizplus.com/quiz/70259
Sample Questions
Q1) Directions: Write the equivalent indicated.
125 mL = ________ tsp
Q2) A client had the following during a 12-hour shift:
\(\bullet\)1.5 L of IV fluid
\(\bullet\)Breakfast \(1^3 / _4\) cup of coffee (cup = 8 oz)
2 oz apple juice
\(\bullet\)Lunch \(^1 / _2\) can ginger ale (1 can = 12 oz)
3 oz jello
\(\bullet\)Dinner 2 cups of tea (1 cup = 8 oz)
4 oz gelatin dessert
At the end of the shift, the Foley catheter is emptied of 1,650 mL of urine, and a surgical drain is emptied of 200 mL.
Calculate the I&O for the 12-hour shift in milliliters.
a. Intake ________________ mL;
b. Output _______________ mL
Q3) Directions: Write the equivalent indicated. \(11 ^ { 1 } / _2\) oz = ________ mL
Q4) Directions: Write the equivalent indicated.
0.005 g = _____ mg
Q5) Directions: Write the equivalent indicated. \(4^1 /_4\) qt = _____ mL
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Chapter 9: Additional Conversions Useful in the Health Care Setting
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) Directions: Convert the following temperature as indicated. 12.8° C = _____° F
Q2) Directions: Convert the following weight as indicated. Round weight to the nearest tenth. \(82 ^ { 1 } /_ 2\) lb = _____ kg
Q3) Directions: Convert the following weight as indicated. Round weight to the nearest tenth.
63 kg = _____ lb
Q4) Directions: Convert the following time to traditional time. 2146 ___________
Q5) Directions: Convert the following temperature as indicated. 102° F = _____° C
Q6) Directions: Convert the following weight as indicated. Round weight to the nearest tenth.
41 lb, 2 oz = _____ kg
Q7) Directions: Convert the following weight as indicated. Round weight to the nearest tenth.
20.8 kg = _____ lb
Q8) Directions: Write the equivalent indicated.
40.5 cm ______ mm Page 12
Q9) A wound measures 4.2 cm in length. How many mm is this? _____ mm
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Page 13
Chapter 10: Medication Administration
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18 Verified Questions
18 Flashcards
Source URL: https://quizplus.com/quiz/70261
Sample Questions
Q1) Which of the following are considered unique identifiers in addition to the full name of a client when establishing the identification of a client? (Select all that apply.)
A) Room number of the client.
B) Client's medical record number.
C) Initials of the client's name.
D) Client's date of birth.
E) Name of the client's medication.
Q2) Medication errors (Select all that apply.)
A) are preventable.
B) are less prevalent in children and elderly.
C) cause an increase in health care cost.
D) can occur when the six rights of medication administration are not adhered to.
E) can result in tragic outcomes including death.
F) occur in the hospital setting only.
Q3) A nurse who administers a medication that is unsafe is liable for the error.
A)True
B)False
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14
Chapter 11: Understanding and Interpreting Medication
Orders
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/70262
Sample Questions
Q1) The nurse is responsible for determining the times for a medication ordered t.i.d. at an institution.
A)True B)False
Q2) Directions: Give the abbreviation for the following. Twice a day: _____
Q3) A p.r.n. order must indicate the minimum time between dosages such as q4h.
A)True B)False
Q4) Complete the following sentence with the correct word or number. A medication order is written without a frequency. The nurse should
Q5) The use of a computer to order medications
A) increases client confidentiality.
B) lessens the work of checking orders.
C) helps to identify errors in writing orders.
D) decreases the problems associated with illegible handwriting.
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Q6) Complete the following sentence with the correct word or number. To ensure accuracy and prevent misinterpretation, place a _____ before the decimal point.
Chapter 12: Medication Administration Records and Medication
Distribution
Systems
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16 Verified Questions
16 Flashcards
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Sample Questions
Q1) Which medication is ordered to be administered "as needed"? _______________
Q2) The health care provider writes medication orders at 8 AM on March 10, 2014, for a client and signs the orders. Which order(s) should the nurse question? (Select all that apply.) _____________________________
A) Lasix 20 mg p.o. daily
B) Digoxin 0.125 mg p.o. everyday
C) Ampicillin 250 mg q6h
D) Multivitamin daily
E) Colace 200 mg p.o. t.i.d.
F) Tylenol 650 mg p.r.n. for pain
Q3) The prescriber orders a medication q8h. The nurse enters the following times on the medication administration record (MAR): 12 AM-6 AM-12 PM-6 PM. What error has occurred?
Q4) What dose of heparin is to be administered? _______________
Q5) A medicine ordered q6h would be given how many times a day? _____
A) 4
B) 6
C) 8
D) 12
Q6) K-Dur 10 mEq is ordered. What does mEq mean? _______________ Page 16
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Page 17
Chapter 13: Reading Medication Labels
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) 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.
Q2) 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.
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18
Chapter 14: Dosage Calculation Using the Ratio and Proportion Method
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15 Verified Questions
15 Flashcards
Source URL: https://quizplus.com/quiz/70265
Sample Questions
Q1) Directions: Calculate the following dosage using the ratio and proportion method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Thorazine 15 mg IM stat
Available: Thorazine 25 mg per mL
Q2) Directions: Calculate the following dosage using the ratio and proportion method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Clindamycin 0.6 g IV q12h
Available: Clindamycin 300 mg per 2 mL
Q3) Directions: Calculate the following dosage using the ratio and proportion method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Zofran 7 mg p.o.b.i.d.
Available: Zofran oral solution labeled 4 mg per 5 Ml
Q4) Directions: Calculate the following dosage using the ratio and proportion method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Calcijex 1.5 mcg IV daily on Mon., Wed., Fri.
Available: Calcijex 1 mcg per mL
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Chapter 15: Dosage Calculation Using the Formula Method
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14 Verified Questions
14 Flashcards
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Sample Questions
Q1) Directions: Calculate the following dosage using the formula method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Thorazine 25 mg p.o. t.i.d.
Available: Thorazine syrup labeled 10 mg per 5 mL
Q2) Directions: Calculate the following dosage using the formula method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Amoxil 0.5 g p.o. q6h
Available: Amoxil capsules labeled 250 mg per capsule
Q3) Directions: Calculate the following dosage using the formula method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Thorazine 15 mg IM stat
Available: Thorazine 25 mg per mL
Q4) Directions: Calculate the following dosage using the formula method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Compazine 8 mg p.o. stat
Available: Compazine syrup labeled 5 mg per 5 mL
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Chapter 16: Dosage Calculation Using the Dimensional Analysis Method
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12 Verified Questions
12 Flashcards
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Sample Questions
Q1) Directions: Calculate the following dosage using the dimensional analysis method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Calcijex 1.5 mcg IV daily on Mon., Wed., Fri.
Available: Calcijex 1 mcg per mL
Q2) Directions: Calculate the following dosage using the dimensional analysis method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Ampicillin 0.375 g IM q6h
Available: Ampicillin 250 mg per mL
Q3) Directions: Calculate the following dosage using the dimensional analysis method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Thorazine 15 mg IM stat
Available: Thorazine 25 mg per mL
Q4) Directions: Calculate the following dosage using the dimensional analysis method. Round mL answers to the nearest tenth unless otherwise indicated.
Order: Raloxifene HCl 60 mg p.o.b.i.d.
Available: Raloxifene HCl tablets labeled 60 mg per tablet
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Chapter 17: Oral Medications
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35 Verified Questions
35 Flashcards
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Sample Questions
Q1) Directions: Calculate the following dosage. Use labels where provided. Round oral liquids to the nearest tenth as indicated.
Order: Ampicillin 1 g p.o. as an initial dosage and then 500 mg p.o. q.i.d. for 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)
Q2) Directions: Complete with the correct word(s) or number.
The solid form of medication that contains granules that delays the release of the medication is referred to as a _______________.
Q3) Directions: Complete with the correct word(s) or number.
The nurse should question and check any calculation that indicates you should administer more than ________ tablets or capsules to achieve a single dose.
Q4) Directions: Complete with the correct word(s) or number.
Enteric-coated tablets and time-release tablets should never be _______________.
Q5) Directions: Complete with the correct word(s) or number. An elongated tablet for easy swallowing is referred to as a _______________.
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Chapter 18: Parenteral Medications
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30 Verified Questions
30 Flashcards
Source URL: https://quizplus.com/quiz/70269
Sample Questions
Q1) Directions: Complete the following statements with the correct word(s) or number(s). 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?
Q2) If the dose calculated is 0.78 mL, and a 1-mL syringe is used, how many milliliters will the nurse administer?
A) 0.75 mL
B) 0.78 mL
C) 0.8 mL
D) 0.85 mL
Q3) Directions: Calculate the dosages, use labels where provided, and shade in the dosages on the syringe where provided. Round answers to the nearest tenth unless otherwise indicated.
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
Q4) Directions: Complete the following statements with the correct word(s) or number(s).
The term used for injectable medications is _______________.
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Chapter 19: Reconstitution of Solutions
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17 Verified Questions
17 Flashcards
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Sample Questions
Q1) Directions: Prepare the following strength solutions. Describe your calculations. 1/4 strength Ensure 8 oz p.o. q4h for 24 hours
Q2) Directions: Indicate how you would prepare each of the following using full-strength hydrogen peroxide (solute) and normal saline (solvent). 0.24 L of 1/3 strength for wound care
Q3) Directions: Indicate how you would prepare each of the following using full-strength hydrogen peroxide (solute) and normal saline (solvent). 8 oz of 1/2 strength for wound care
Q4) Directions: Prepare the following strength solutions. Describe your calculations. 360 mL of 1/4 strength Ensure percutaneous endoscopic (PEG) tube over 4 hours
Q5) Directions: Indicate how you would prepare each of the following using full-strength hydrogen peroxide (solute) and normal saline (solvent). 300 mL of 3/4 strength for skeletal pin care
Q6) Directions: Prepare the following strength solutions. Describe your calculations. Prepare irrigant 250 mL 1/2 strength solution: ______________________________
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Chapter 20: Insulin
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10 Verified Questions
10 Flashcards
Source URL: https://quizplus.com/quiz/70271
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 me ______________________________.
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Chapter 21: Intravenous Solutions and Equipment
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15 Verified Questions
15 Flashcards
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Sample Questions
Q1) List the components and percentage strengths of the following IV solutions.
a. D5
\(^1 / _4\) S
b. D5NS 10 mEq KCl
c. D5RL
Q2) _______________ devices allow a client to self-administer pain medication.
Q3) 250 mL D5NS _______ g dextrose ________ g NaCl
Q4) In IV fluid abbreviations, D5NS identifies what IV fluid? _______________
Q5) Directions: Interpret the following IV orders. 1,000 mL (1 L) of L/R q8h
Q6) The name for the main infusion administration set is _______________.
Q7) 5 L D10W dextrose: _______________
Q8) 500 mL \(^1 /_ 2\) NS sodium chloride (NaCl): _____
Q9) An IV pump is an example of an ___________ infusion device.
Q10) Directions: Interpret the following IV orders. 1,000 mL (1 L) D5W to infuse at a rate of 100 mL per hour
Q12) 0.5 L D \(5^1 / _4\) NS ________ g dextrose ________ g NaCl Page 26
Q11) 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 _______________.
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Chapter 22: Intravenous Calculations
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37 Verified Questions
37 Flashcards
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Sample Questions
Q1) Order: Digoxin 0.25 mg IV push. Infuse slowly over 5 min. Available: Digoxin 0.5 mg/2 mL
How many milliliters should be infused per minute? _____
Q2) 10% calcium chloride (10 mL) over 5 min IV push
How many milliliters will be injected per minute? _____ mL
Q3) Order: Regular Humulin Insulin 8 units/hr IV
Available: 50 units of insulin in 150 mL 0.9% NS What rate in mL/hr will infuse 8 units/hr? _____
Q4) Total parenteral nutrition (TPN) solution of 1,000 mL at 30 mL/hr
Determine the infusion time: _____
Q5) 150 mL D5W \(^1 / _2\) NS infusing at 20 macrogtt/min. Drop factor: 15 gtt/mL. Calculate the infusion time: _____
Q6) 2,000 mL of 0.9% NS were to infuse in 12 hr at 28 macrogtt/min. The drop factor is 10 gtt/mL. After 8 hr, 900 mL remain.
a. Recalculated rate: _____
b. Percentage of change: _____
c. Course of action: _____
Q7) Drop factor of 15 on the package of a continuous IV administration set indicates what? ______________________________
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Chapter 23: Heparin Calculations
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24 Verified Questions
24 Flashcards
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Sample Questions
Q1) Order: 25,000 units heparin IV in 250 mL 0.9% NS to infuse at 20 units/kg/hr. The client weighs 165 lb.
a. Weight in kilograms: _____
b. How many units will the client receive per hour? _____
Q2) 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? _____
Q3) A client weighs 88 kg. Order: Bolus with heparin at 80 units/kg; initiate drip at 18 units/kg/hr. Heparin infusion 25,000 units in 500 mL 0.9 % sodium chloride.
a. Calculate the heparin bolus dosage: _____
b. Calculate the infusion rate for the IV dosage: _____
Q4) Order: 50,000 units of heparin in 1 L D5 0.9% NS to infuse at 40 mL/hr units/hr = _____
Q5) 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
Q6) If a U for units was misread as a zero by the nurse for a heparin dose, the consequences to the client receiving the heparin could be
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Chapter 24: Critical Care Calculations
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8 Flashcards
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Sample Questions
Q1) Lidocaine to infuse at 3 mg/min. The solution available is 2 g of lidocaine in 500 mL D5W. Determine the IV flow rate. ____
Q2) 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: _____
Q3) A client is receiving procainamide 1 g in 500 mL D5W at 120 mL/hr.
a. mg/hr: _____
b. mg/min: _____
Q4) 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: _____
Q5) 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: _____
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Chapter 25: Pediatric and Adult Dosage Calculation Based on Weight
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) Directions: Round dosage and weight to the nearest tenth as indicated. Use labels where provided.
Phenobarbital 45 mg p.o.
b.i.d.
b.i.d. is ordered for a child with seizures weighing 35 lb. The recommended dosage is 6 to 8 mg/kg/24 hr, given every day or
a. What is the child's weight in kilograms? _____
b. What is the safe 24-hr dosage range for this child? _____
c. Is the dosage ordered safe? (Prove mathematically.) _______________ Explain your action. ______________________________
Q2) 22 inches and 10 lb: _____ m<sup>2</sup>
Q3) Directions: Determine the normal dosage range to the nearest tenth. State your course of action.
A child weighing 16.4 kg is to receive a medication IV with a dosage range of 100 to 150 mg/kg/day. The order is for 600 mg in 75 mL D5W q6h. Determine whether the dosage ordered is within normal limits. What is your course of action?
Q4) An adult who is 67 inches tall and weighs 175 lb: _____ m<sup>2</sup>
Q5) A child who measures 26 inches and weighs 36 lb: _____ m<sup>2</sup>
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