Description

Dosage Calculations A Multi-Method Approach 1^st Edition Giangrasso Shrimpton Test Bank

ISBN-13: 978-0132158626

ISBN-10: 0132158620

 

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Giangrasso, Dosage Calculations: A Multi-Method Approach, 1/e Test Bank
Chapter 12

Question 1

Type: MCSA

Order: Prednisone 0.15 mg/kg PO daily.

The label on the bottle reads 2.5 mg/tab, and the child weighs 110 pounds. Calculate the number of tablets that you should administer.

1. 6 tablets
2. 14 1/2 tablets
3. 3 tablets
4. 18 tablets

Correct Answer: 3

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 110 ÷ 2.2 = 50 kg, 7.5 mg.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of tablets for orders based on the child’s weight

 

Question 2

Type: MCSA

Order: Pen-Vee K (penicillin V potassium) 7.5 mg/kg PO, daily q.4h.

The medication is supplied in 125 mg/tab, 250 mg/tab, and 500 mg/tab. Using the minimum number of tablets, how many tablets, and of which strength, will you administer to a child who weighs 110 pounds?

1. Three 125mg tablets
2. One 250mg tablet and one 125mg tablet
3. One 500mg tablet, one 250mg tablet, and 3/5 of a 125mg tablet
4. Three 250mg tablets

Correct Answer: 2

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 375 mg per dose.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of tablets for orders based on the child’s weight

 

Question 3

Type: MCSA

Order: Phenobarbital sodium 4 mg/kg PO, daily at bedtime.

The label on the bottle reads, “30 mg/tab.” Calculate how many tablets you should administer for a child who weighs 33 pounds.

1. 2 tablets
2. 4 1/2 tablets
3. 15 tablets
4. 9 2/3 tablets

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 33 lb = 15 kg.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of tablets for orders based on the child’s weight

 

Question 4

Type: MCSA

Order: Dilantin Kapseals (phenytoin sodium, extended) 5 mg/kg PO, extended-release capsules divided in three equal doses.
The label on the bottle reads, “30 mg/cap.” Calculate how many capsules you should administer for a child who weighs 40 pounds.

1. 1 capsule
2. 3 capsules
3. 2 2/3 capsules
4. 3 3/4 capsules

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 40 lb × kg/2.2 lb × 5 mg/ kg × 1 cap/30 mg = 3 cap ÷ 3 = 1 capsule

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of tablets for orders based on the child’s weight

 

Question 5

Type: MCSA

Order: Fluconazole (Diflucan) 5 mg/kg p.o. every day.

The label on the bottle reads “50 mg/tablet.” Calculate how many tablets you should administer for a child who weighs 44 pounds.

1. 4 2/5 tablets
2. 4 tablets
3. 12 1/2 tablets
4. 2 tablets

Correct Answer: 4

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 20 kg × 5 mg/kg = 100 mg.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of tablets for orders based on the child’s weight

 

Question 6

Type: MCSA

Order: Amoxicillin oral suspension 20 mg/kg/day PO in three divided doses.

The label on the bottle reads 125 mg/5 mL, and the child weighs 35 pounds. Calculate the number of milliliters that you should administer.

1. 9.3 mL
2. 4.2 mL
3. 2.5 mL
4. 12.9 mL

Correct Answer: 2

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 35 lb/1 × kg/2.2 lb × 20 mg/kg × 5 mL/125 mg = 12.8 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of milliliters for orders based on the child’s weight

 

Question 7

Type: MCSA

Order: Ery-Ped (erythromycin ethylsuccinate) oral suspension 20 mg/kg/daily PO, in four equally divided doses.
The label on the bottle reads, “400 mg/5 mL,” and the child weighs 65 pounds. Calculate the number of milliliters that you should administer.

1. 3.25 mL
2. 1.2 mL
3. 8.9 mL
4. 1.8 mL

Correct Answer: 4

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 65 lb/1 × kg/2.2 lb × 20 mg/kg × 5 mL/400 mg = 7.4 mL/d.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of milliliters for orders based on the child’s weight

 

Question 8

Type: MCSA

Order: Amoxicillin oral suspension 40 mg/kg/day PO, in three divided doses.

The label on the bottle reads, “125 mg/5 mL,” and the child weighs 65 pounds. Calculate the number of milliliters that you should administer.

1. 0.14 mL
2. 34.7 mL
3. 15.7 mL
4. 47.3 mL

Correct Answer: 4

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 65 lb × kg/2.2 lb × 40 mg/kg × 5 mL/125 mg = 47.3 mL/d

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of milliliters for orders based on the child’s weight

 

Question 9

Type: MCSA

Order: Ery-Ped (erythromycin ethylsuccinate) oral suspension 30 mg/kg/daily PO, in four equally divided doses.

The label on the bottle reads, “200 mg/5 mL,” and the child weighs 45 pounds. Calculate the number of milliliters that you should administer.

1. 15.3 mL
2. 5.6 mL
3. 18.6 mL
4. 2.55 mL

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 45 lb × kg/2.2 lb × 30 mg/kg × 5 mL/200 mg = 15.3 mL/d.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of milliliters for orders based on the child’s weight

 

Question 10

Type: MCSA

Order: Lasix (furosemide) oral suspension 2 mg/kg/daily PO, in four equally divided doses.

The label on the bottle reads, “40 mg/5 mL,” and the child weighs 11 pounds. Calculate the number of milliliters that you should administer.

1. 3.1 mL
2. 6.05 mL
3. 0.21 mL
4. 0.31 mL

Correct Answer: 4

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 11 lb = 5 kg, 5 kg × 2 mg/kg × 5 mL/40 mg = 0.31 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Find the number of milliliters for orders based on the child’s weight

 

Question 11

Type: MCSA

Order: Claforan (cefotaxime sodium) 50 mg/kg/day IV in four equally divided doses, infuse in 50 mL DW over 30 minutes via pump.

The package insert states to reconstitute the 500 mg vial with 10 mL sterile water, and the child weighs 36 kilograms. At what rate will you set the IV pump to run in milliliters per hour?

1. 100 mL/h
2. 108 mL/h
3. 118 mL/h
4. 172 mL/h

Correct Answer: 3

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 1800 mg/day in four equally divided doses = 450 mg/dose. 9 mL + 50 mL D5W = 59 mL to be infused over 30 minutes.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Pediatric IV

 

Question 12

Type: MCSA

Order: Gentamicin sulfate 2.5 mg/kg IV q.12h., infuse in 20 mL DW over 1h via pump.

The label on the vial reads, “10 mg/mL,” and the child weighs 10 pounds. At what rate will you set the IV pump to run, in milliliters per hour?

1. 20.6 mL/h
2. 25.7 mL/h
3. 21.1 mL/h
4. 24.5 mL/h

Correct Answer: 3

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 1.136 + 20 = 21.136 mL/h.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Pediatric IV

 

Question 13

Type: MCSA

A patient is to receive 1000 mL D₅W at 80 mL/h. Calculate the flow rate in gtt/min. The drop factor is 20 gtt/mL.

1. 26 gtt/min
2. 33 gtt/min
3. 333 gtt/min
4. 240 gtt/min

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 80 mL/h × mL/20 gtt × 1 h/60 min = 26.6 gtt/min. Round down.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Pediatric IV

 

Question 14

Type: MCSA

A patient is to receive 500 mg of Kefzol (cefazolin sodium) in 50 mL D₅W over 30 minutes. Calculate the flow rate in mcgtt. The drop factor is 60 mcgtt/mL.

1. 50 mcgtt/min
2. 60 mcgtt/min
3. 100 mcgtt/min
4. 120 mcgtt/min

Correct Answer: 3

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 50 mL/30 min = 100 mL/h = 100 mcgtt/min.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Pediatric IV

 

Question 15

Type: MCSA

A patient is to receive 250 mL D₅W at 24 mL/h. Calculate the flow rate in gtt/min. The drop factor is 15 gtt/mL.

1. 30 gtt/min
2. 6 gtt/min
3. 62 gtt/min
4. 48 gtt/min

Correct Answer: 2

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 24 mL/h × 15 gtt/mL × 1 h/60 min = 6 gtt/min. Note: a rate this slow in most facilities would require use of an IV pump.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Pediatric IV

 

Question 16

Type: MCSA

Order: Wellcovorin (leucovorin calcium) 10 mg/mPO stat.

The label on the ampule reads 3 mg/mL. Calculate how many milliliters you will prepare for a child whose BSA is 0.96 m².

1. 0.32 mL
2. 3.3 mL
3. 33 mL
4. 3.2 mL

Correct Answer: 4

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 0.96 m² × 10 mg/ m² = 9.6

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Orders based on BSA

 

Question 17

Type: MCSA

Order: Amiodarone HCl 100 mg/m PO, daily.

Calculate how many milligrams a child whose BSA is 0.8m² should receive.

1. 80 mg
2. 125 mg
3. 8 mg
4. 12.5 mg

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 0.8 m² × 100 mg/ m² = 80 mg.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Orders based on BSA

 

Question 18

Type: MCSA

Order: Lomustine 100 mg/m PO, every six weeks.

The label on the bottle reads, “100 mg/cap.” How many capsules of this antineoplastic drug will you administer to a child whose BSA is 1 m²?

1. 1 capsule
2. 10 capsules
3. 0.1 capsule
4. 7 capsules

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 1 m² × 100 mg/ m² = 100 mg = 1 capsule

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Orders based on BSA

 

Question 19

Type: MCSA

Order: Dronabinol 5 mg/m PO, 1–3 hours before chemotherapy.

How many milligrams will a child whose BSA is 0.8m² receive?

1. 4 mg
2. 6.25 mg
3. 0.4 mg
4. 0.625 mg

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 0.8 m² × 5 mg/m² = 4 mg

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Orders based on BSA

 

Question 20

Type: MCSA

Calculate the daily rate of maintenance fluids and the hourly flow rate in mL/h for a child who weighs 8 kilograms.

1. 800 mL/day; 33 mL/h
2. 100 mL/day; 4.2 mL/h
3. 80 mL/day; 3.4 mL/h
4. 80 mL/d; 3.3 mL/h

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 8 kg × 100 mL/kg = 800 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Daily fluid maintenance

 

Question 21

Type: MCSA

Calculate the daily rate of maintenance fluids and the hourly flow rate for a child who weighs 13 kilograms.

1. 1150 mL per day; 47.9 mL/h
2. 130 mL per day; 5.4 mL/hr
3. 650 mL per day; 27 mL/hr
4. 260 mL per day; 10.8 mL/hr

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: (10 × 100) + (3 × 50) = 1150 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Daily fluid maintenance

 

Question 22

Type: MCSA

Calculate the daily rate of maintenance fluids and the IV hourly flow rate for a child who weighs 25 kilograms.

1. 500 mL per day; 20.8 mL per hour
2. 170 mL per day; 7 mL per hour
3. 600 mL per day; 25 mL per hour
4. 1600 mL per day; 66 mL per hour

Correct Answer: 4

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: (10 × 100) + (10 × 50) + (5 × 20) = 1600 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Daily fluid maintenance

 

Question 23

Type: MCSA

Calculate the daily rate of maintenance fluids and the IV hourly flow rate for a child who weighs 44 pounds.

1. 1100 mL per day; 46 mL/h
2. 850 mL per day; 35 mL/h
3. 1500 mL per day; 62 mL/h
4. 1200 mL per day; 50 mL/h

Correct Answer: 3

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 44 ÷ 2.2 = 20 kg, 1000 + 500 = 1500 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Daily fluid maintenance

 

Question 24

Type: MCSA

Calculate the daily rate of maintenance fluids and the IV hourly flow rate for a child who weighs 95 pounds.

1. 1960 mL per day; 80 mL/h
2. 2100 mL per day; 87.5 mL/h
3. 2500 mL per day; 104 mL/h
4. 2050 mL per day; 85 mL/h

Correct Answer: 1

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 43 kg, 1000 + 500 + 460 = 1960 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Daily fluid maintenance

 

Question 25

Type: FIB

Order: Dilantin (phenytoin) 15 mg PO q.12h.

The recommended dose for children is 5 mg/kg/day divided in 2–3 doses. Is this order a safe dose for a child who weighs 11 pounds? ______

Standard Text:

Correct Answer: No

Rationale : 5 kg × 5 mg/kg = 25 mg/day. 15 mg twice a day = 30 mg/day, which is too high a dosage.

Global Rationale:

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Safe-dose range

 

Question 26

Type: FIB

Order: Amoxil 125 mg PO, q.8h.

The recommended dose for children who weigh less than 40 kg is 25 mg/kg/day divided q.12h., or 20 mg/kg/day divided q.8h. Is this a safe dose for a child who weighs 16 pounds? ______

Standard Text:

Correct Answer: No

Rationale : 7.3 kg; 25 mg/kg/day × 7.3 kg = 182.5 mg/day is a safe dosage. 125 mg three times a day = 375 mg ordered to be administered, which exceeds the safe dosage.

Global Rationale:

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Safe-dose range

 

Question 27

Type: FIB

Order: Ceclor (cefaclor) 100 mg PO, t.i.d.

The recommended dose for a child older than one month is 20–40 mg/kg/d in divided doses q.8h. Is the dose safe for a child who weighs 33 pounds? ______

Standard Text:

Correct Answer: Yes

Rationale : 20 mg/kg × 15 = 300 mg; 40 mg/kg × 15 = 600 mg. Safe dosage is 300–600 mg/day for a 33 pound child. 100 mg given three times a day = 300 mg which is a safe dosage.

Global Rationale:

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Safe-dose range

 

Question 28

Type: FIB

Order: Pediaprofen (ibuprofen) 40 mg PO, q.6h. p.r.n. temperature below 102.5°F.

The label on the bottle reads, “100 mg/5 mL.” The recommended dose is 5 mg/kg q 6–8h, with a maximum daily dose of 40 mg/kg/d. Is this a safe dose for a child who weighs 21 pounds? ______

Standard Text:

Correct Answer: Yes

Rationale : The maximum dose is 40 mg/kg/day. 9.5 kg × 40 mg/kg/day = 380 mg/day as the maximum dose for this child. 40 mg given four times a day = 160 mg, which is below the maximum dose, so it is safe.

Global Rationale:

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: Safe-dose range

 

Question 29

Type: MCSA

The physician orders Garamycin (gentamicin) 25 mg IVPB q.8h. for a child.

If the label on the Garamycin vial reads 5 mg/mL, how many milliliters will you withdraw from the vial to add to the volume control chamber? If the recommended concentration of the solution for infusion is 2 mg/mL, how would you then dilute the medication in the volume control chamber (VCC)?

1. 5 mL of medication and 12.5 mL of fluid
2. 125 mL of medication and 125 mL of fluid
3. 5 mL will be withdrawn from the vial and added to the VCC. And then IV fluid must be added to the VCC to the level of 12.5 mL
4. 125 mL of medication and no further fluid is needed

Correct Answer: 3

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: 5 mL of medication to be added to the VCC; 25 mg × 1 mL/2 mg = 12.5 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: VCC

 

Question 30

Type: MCSA

The physician orders vancomycin (Vancocin) 500 mg q.6h.

Directions on the label instruct 500 mg vial to be diluted with 10 mL of sterile water and then further diluted with 100 mL of D₅W. How many mL of fluid will there be in the VCC when medication is ready to infuse?

1. 100 mL
2. 10 mL
3. 110 mL
4. 115 mL

Correct Answer: 3

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: Dilute with 10 mL sterile water and then add 100 mL of D5W = 110 mL total fluid.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: VCC

 

Question 31

Type: MCSA

The doctor orders Ampicillin 500 mg q6h to be administered in a volume control chamber in a total solution of 40 mL. The ampicillin vial has a strength of 100 mg/mL. After adding the ampicillin to the VCC, how many mL of fluid will you then also add to the VCC?

1. 5 mL
2. 15 mL
3. 35 mL
4. 40 mL

Correct Answer: 3

Rationale 1:

Rationale 2:

Rationale 3:

Rationale 4:

Global Rationale: You add 5 mL from the vial, and need another 35 mL to have a total of 40 mL.

 

Cognitive Level:

Client Need:

Client Need Sub:

Nursing/Integrated Concepts:

Learning Outcome: VCC