Here are over 40 practice dosage calculation problems.

Each problem includes a step-by-step solution to help you understand how the calculations are performed.

Basic Dosage Calculation Problems

Practice Problem #1

Order: Amoxicillin 250 mg PO
Available: Amoxicillin 125 mg/5 mL suspension
How many mL will you give?

Practice Problem #2

Order: Digoxin 0.25 mg PO daily
Available: Digoxin 0.125 mg tablets
How many tablets will you give per dose?

Practice Problem #3

Order: Furosemide 40 mg IM
Available: Furosemide 20 mg/mL
How many mL will you administer?

Practice Problem #4

Order: Ceftriaxone 1 g IV once daily
Available: Ceftriaxone 250 mg/mL solution
How many mL will you administer?

Practice Problem #5

Order: Acetaminophen 500 mg PO every 6 hours
Available: Acetaminophen 250 mg tablets
How many tablets will you administer per dose?

Practice Problem #6

Order: Morphine 2 mg IVP once daily
Available: Morphine 10 mg/mL  
How many mL will you administer?

Practice Problem #7

Order: Hydrocortisone 150 mg IVP
Available: Hydrocortisone 100 mg in 2 mL
How many mL will you administer?

Practice Problem #8

Order: Coumadin 7.5 mg PO daily
Available: Coumadin 2.5 mg tablets
How many tablets will you administer?

Practice Problem #9

Order: Narcan 0.3 mg IV stat
Available: Narcan 0.4 mg/mL 
How many mL will you administer?

Practice Problem #10

Order: Prednisolone 40 mg PO daily
Available: Prednisolone 5 mg tablets
How many tablets will you administer?

Practice Problem #11

Order: Codeine 20 mg PO prn  
Available: Codeine syrup 10mg/5mL
How many mL will you administer?

Practice Problem #12

Order: Diflucan 100 mg PO every 12 hours
Available: Diflucan 40 mg/mL
How many mL will you administer?

Practice Problem #13

Order: Epinephrine 0.3 mg IM  
Available: Epinephrine 1 mg/mL
How many mL will you administer?

Practice Problem #14

Order: Levothyroxine 0.075 mg PO every day
Available: Levothyroxine 50 mcg tablets
How many tablets will you administer?

Practice Problem #15

Order: Acetaminophen 0.65 g PO  
Available: Acetaminophen 325 mg tablets  
How many tablets will you administer?

Practice Problem #16

Order: Ibuprofen 10 mg/kg
Patient weight: 44 pounds
Available: 100 mg/5 mL oral suspension
How many mL should you administer?

Practice Problem #17

Order: Acetaminophen 15 mg/kg/dose every 6 hours
Child weighs: 22 lb
Available: 160 mg/5 mL
How many mL will you administer per dose?

Heparin Dosage Calculation Problems

Practice Problem #18

Order: Heparin 3,000 units subcutaneously twice daily
Available: Heparin 10,000 units in a 2 mL vial
How many mL should you administer?

Practice Problem #19

Order: Heparin 1,000 units/hr IV infusion
Available: Heparin 25,000 units in 250 mL D5W
What rate do you set the IV pimp??

Practice Problem #20

Order: Heparin 27 units/kg/hr
Available: Heparin 25,000 units in 500 mL D5W 
Patient weight: 82 kg  
What rate do you set the IV pump?    

Practice Problem #21

Order: Heparin 2,000 units subcutaneously twice daily
Available: Heparin 10,000 units in 2 mL vial
How many mL should you administer?   

Practice Problem #22

Order: Heparin 1400 units/hr
Available: Heparin 25,000 units in 250 mL D5W 
What rate do you set the IV pump? 

Practice Problem #23

Order: Heparin is being infused at 15 mL/hr via an infusion pump.  
Available: Heparin 25,000 units in 250 mL D5W
How many units/hr is the patient receiving?   

Practice Problem #24

Order: Heparin 650 units/hr
Available: Heparin 10,000 units in 250 mL D5W 
What rate do you set the IV pump? 

Practice Problem #25

Order: Heparin is being infused at 12 mL/hr via an infusion pump.  
Available: Heparin 10,000 units in 500 mL D5W
How many units/hr is the patient receiving?   

Practice Problem #26

Order: Heparin 18 units/kg/hr
Available: Heparin 10,000 units in 500 mL D5W 
Patient weight: 78 kg

What is the flow rate in mL?  

IV Pump Rate Calculations

Practice Problem #27

Order: Vancomycin 1.5 g IVPB q12h
Available: 1.5 g in 300 mL to infuse over 2 hours
What is the IV rate in mL/hr?

Practice Problem #28

Order: Administer 1 L of NS over 8 hours
What is the infusion rate in mL/hr?

Practice Problem #29

Order: Ancef 1 g in 100 ml of fluid over 30 minutes.

At what rate will you program the IV pump?

Practice Problem #30

Order: 100 ml of 0.9 NS to infuse over 45 minutes.

At what rate will you program the IV pump?

Practice Problem #31

 

Order: 750 ml NS IV bolus over 3 hours.

At what rate will you program the IV pump?

Practice Problem #32

Order: Ancef 1 g in 50 ml of fluid over 30 minutes.

At what rate will you program the IV pump?

Practice Problem #33

Order: 0.5 L of 0.9 NS to infuse over 6 hours.

At what rate will you program the IV pump?

Practice Problem #34

Order: Metronidazole 500 mg IVPB in 200 ml NS over 30 minutes.

At what rate would you set the pump?

Practice Problem #35

Order: Vancomycin 1 g IVPB over 90 minutes in 200 ml daily.

At what rate should the pump be set?

Practice Problem #36

Order: 500 cc NS IV bolus over 20 minutes.

At what rate would you set the pump?

Complex Dosage Calculation Problems

Practice Problem #37

Order: Dopamine at 5 mcg/kg/min
Patient weight:
70 kg
Available:
Dopamine 400 mg in 250 mL
What is the infusion rate in mL/hr?

Practice Problem #38

Order: Insulin infusion at 2 units/hr
Available: 100 units in 100 mL NS
What is the infusion rate in mL/hr?

Practice Problem #39

Order: Lidocaine infusion at 2 mg/min
Available: 1 g in 250 mL D5W
What is the rate in mL/hr?

Practice Problem #40

Order: Norepinephrine 0.1 mcg/kg/min
Patient weight: 75 kg
Available: 4 mg in 250 mL
What is the infusion rate in mL/hr?

Practice Problem #41

Order: Nitroglycerin 16 mL/hr.

Available: NTG 50 mg in 250 mL D5W.

How many mg/hr is the patient receiving?

Practice Problem #42

Order: Nipride 3 mcg/kg/min.

Available: Nipride 50 mg in 250 mL D5.

Patient’s Weight:124 lbs.

What infusion rate in mL/hr will the nurse set the pump?

Practice Problem #43

Order: Dopamine 15 mL/hr.

Available: Dopamine 200 mg in 250 mL D5W.

Patient weight: 145 lbs.

How many mcg/kg/min is the patient receiving?