Dosage Calculations Study Guide
Enter your answers in the space provided ONLY. Please be sure to use proper notation and rounding.
1. The physician orders 4600 units of heparin sodium subcutaneously every 8 hrs. a. Determine the amount to give using the label provided.
Answer: __0.46 units_______ [pic] b. Mark the appropriate syringe with the amount. [pic]
[pic]
2. A solution of 35,000 units of heparin in 500 mL normal saline is to infuse at 2000 units/hr. What is the mL/hr flow rate?
Answer _29 mL/hour________
3. The patient has an infusion of 25,000 units of heparin in 500 mL D5W infusing at 32 mL/hr. The physician leaves the order, “Adjust the IV flow rate to deliver 1200 units of heparin/hr.” How should the flow rate of the current infusion be adjusted?
Answer __25 mL/hour_______
4. A solution of 30,000 units of heparin in 500 mL normal saline is infusing at 22 mL/hr. How many units of heparin are being delivered each hour?
Answer _1320 units/hour________
5. The patient has an infusion of 20,000 units of heparin in 500 mL D5W infusing at 15 mL/hr. How many units are being delivered each hour?
Answer: __600 units/hour_______
6. A solution of 50,000 Units heparin in 500 mL D5W is to be infused at the rate of 1400 units/hr using a 20 drop/mL set. Calculate the flow rate in drop/min.
Answer: 5 drops/min______
7. The nurse needs to add 20,000 units of heparin to 500 mL of D5W. Refer to the label below.
[pic]
a. How many mL of heparin would be added to the IV bag to obtain the ordered concentration?
Answer _8 mL________
b. A patient is to receive 7500 units of heparin in 150 mL of normal saline. Referring to the label above, how many mL of heparin need to be added to the IV bag for the ordered concentration?
Answer 3 mL______
8. The patient has an infusion of 25,000 units of heparin in 500 mL D5W infusing at 32 mL/hr. The physician leaves the order, “Adjust the IV flow rate to deliver
1. The physician orders 4600 units of heparin sodium subcutaneously every 8 hrs. a. Determine the amount to give using the label provided.
Answer: __0.46 units_______ [pic] b. Mark the appropriate syringe with the amount. [pic]
[pic]
2. A solution of 35,000 units of heparin in 500 mL normal saline is to infuse at 2000 units/hr. What is the mL/hr flow rate?
Answer _29 mL/hour________
3. The patient has an infusion of 25,000 units of heparin in 500 mL D5W infusing at 32 mL/hr. The physician leaves the order, “Adjust the IV flow rate to deliver 1200 units of heparin/hr.” How should the flow rate of the current infusion be adjusted?
Answer __25 mL/hour_______
4. A solution of 30,000 units of heparin in 500 mL normal saline is infusing at 22 mL/hr. How many units of heparin are being delivered each hour?
Answer _1320 units/hour________
5. The patient has an infusion of 20,000 units of heparin in 500 mL D5W infusing at 15 mL/hr. How many units are being delivered each hour?
Answer: __600 units/hour_______
6. A solution of 50,000 Units heparin in 500 mL D5W is to be infused at the rate of 1400 units/hr using a 20 drop/mL set. Calculate the flow rate in drop/min.
Answer: 5 drops/min______
7. The nurse needs to add 20,000 units of heparin to 500 mL of D5W. Refer to the label below.
[pic]
a. How many mL of heparin would be added to the IV bag to obtain the ordered concentration?
Answer _8 mL________
b. A patient is to receive 7500 units of heparin in 150 mL of normal saline. Referring to the label above, how many mL of heparin need to be added to the IV bag for the ordered concentration?
Answer 3 mL______
8. The patient has an infusion of 25,000 units of heparin in 500 mL D5W infusing at 32 mL/hr. The physician leaves the order, “Adjust the IV flow rate to deliver