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**HLTH 1210/LPN-C IV Calculation Practice Problems II**

Manual IV Flow Rate Formula: volume of infusion (in mL) x drop factor = Flow rate time of infusion (in minutes) (in gtt/min) Electronic IV Flow Rate Formula: total milliliters (mL) = Flow rate total hours (h) (in mL/h)

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**Practice Problems (cont’d)**

Ratio/Proportion Formula: Cross-Multiply and Solve for “X” = =

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**Practice Problems (cont’d)**

The physician orders D5W IV at 125 mL/h. The infusion set is calibrated for a drop factor of 10gtt/mL. Calculate the IV flow rate in gtt/min.

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**Practice Problems (cont’d)**

2) Order: Lactated Ringer’s IV at 150mL/h. The drop factor is 15gtt/mL.

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**Practice Problems (cont’d)**

3) Order: Ampicillan 500mg IV in 100mL of NS, infuse over 45 min.

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**Practice Problems (cont’d)**

4) You receive a physician’s order for D5W 250mL IV over the next 2 hours by infusion pump. What is the mL/h?

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**Practice Problems (cont’d)**

5) Order: Ampicillan 500mg IV in 50mL D5 ½ NS in 30 minutes by IV pump. What is the mL/h?

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**Practice Problems (cont’d)**

6) Order: NS 1,800mL IV to infuse in 15 hours by infusion pump. Calculate the flow rate.

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**Practice Problems (cont’d)**

7) Order: Cefazolin 0.5g in 100mL D5W IV Piggyback to run over 30 minutes. Drop factor 20gtt/mL. What is the flow rate in gtt/min?

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**Practice Problems (cont’d)**

8) Order: Ancef 1g in 100mL D5W IV Piggyback to be infused over 45 minutes. Drop factor 60gtt/mL. What is the flow rate in gtt/min?

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**Practice Problems (cont’d)**

9) Order: 50mL IV PB antibiotic solution to infuse in 30 minutes. Drop factor 60gtt/mL. What is the flow rate in gtt/min?

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**Practice Problems (cont’d)**

10) You receive an order for D5W 1,000mL IV to infuse at 60mL/h to begin at At what time will this IV be complete?

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**Practice Problems (cont’d)**

11) You receive an order for Lactated Ringer’s (LR) solution 1,000mL IV to run at 125mL/h. How long will this IV last?

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**Practice Problems (cont’d)**

12) Order: D5W 1,000mL IV per 24 hours. Drop factor 60gtt/mL. What is the flow rate in gtt/min?

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**Practice Problems (cont’d)**

13) You receive an order for D5W 500mL with heparin 25,000 units IV at 850 units per hour. Calculate the flow rate in mL/h.

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**Practice Problems (cont’d)**

14) Order: Dobutamine 250mg IV in 250mL D5W to infuse at 5mcg/kg/min. Client’s weight is 80kg. Calculate the flow rate per infusion pump.

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**Practice Problems (cont’d)**

15) Order: Lidocaine 2g in 500mL D5W IV to run at 4mg/min. Calculate the flow rate per infusion pump.

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