Exam 7: Basic Intravenous Calculations

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Ordered: 1000 mL D5W to infuse at 60 mL per hr. How long will it take to infuse?

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16hr 16 \mathrm{hr} and 40 min 40 \mathrm{~min}
60 mL:1hr=1000 mL:xhr 60 \mathrm{~mL}: 1 \mathrm{hr}=1000 \mathrm{~mL}: x \mathrm{hr}
60x=1000 60 x=1000
x=16.66=16hr,40 min x=16.66=16 \mathrm{hr}, 40 \mathrm{~min} to infuse


Proof 1000×1=1000 1000 \times 1=1000
\quad \quad 16.66×60=999.616.66 \times 60=999.6

For the following questions, calculate mL per hr for an electronic infusion device. -Ordered: D5LR 750 mL in 10 hr.

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75010hr=75 mL per hr\frac{750}{10} \mathrm{hr}=75 \mathrm{~mL} \text { per } \mathrm{hr}

Calculate infusion completion time. -Ordered: 150 mL in 30 min.

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300 mL 300 \mathrm{~mL} per hr


Know \quad \quad \quad \quad \quad Want to Know
 300 \mathrm{~mL}   per hr   Know      \quad   \quad   \quad   \quad   \quad  Want to Know     \begin{array}{l} x=5 \times 60=300 \\ x=300 \mathrm{~mL} \text { per hr } \\ \\ \text { Proof } 5 \times 60=300 \\  \quad \quad \quad1 \times 300=300 \end{array}

x=5×60=300x=300 mL per hr  Proof 5×60=3001×300=300\begin{array}{l}x=5 \times 60=300 \\x=300 \mathrm{~mL} \text { per hr } \\\\\text { Proof } 5 \times 60=300 \\ \quad \quad \quad1 \times 300=300\end{array}

Calculate infusion completion time. -Ordered: 200 mL in 45 min.

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Ordered: IVPB with 150 mL of solution is to be infused in 50 min. At how many mL per hr will you set the electronic device?

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Ordered: 1000 mL 0.9% NS to infuse in 12 hr. The drop factor on the gravity tubing is 20. At how many gtt per min will you regulate the IV?

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Ordered: 2000 mL of normal saline (NS) to infuse in 24 hr. At how many mL per hr will you set the electronic device?

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Ordered: Intravenous piggyback (IVPB) with 100 mL of solution to be infused in 40 min. The drop factor is 20. At how many gtt per min will you regulate the IV?

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Calculate the infusion time for an IV of 1000 mL of normal saline (NS) at 30 gtt per min with a drop factor of 15. How many hr will it take to infuse?

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Calculate infusion completion time. -Ordered: 300 mL in 45 min.

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Calculate the infusion time for an IV of 750 mL of D5W at 60 mL per hr. How many hr will it take to infuse?

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Calculate infusion completion time. -Ordered: 200 mL in 50 min.

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Ordered: 500 mL to be infused in 90 min. The drop factor on the gravity tubing is 20 gtt/mL. a. How many drops per min will you set the gravity device? b. How many mL per hr will infuse if an electronic device is used?

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Ordered: 200 mL IVPB is to be infused in 40-60 min. The drop factor is microdrip. a. How many gtt per min will be infused using the 60-min rate? b. If the IVPB is delivered via an infusion device, at what rate will you set it?

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For the following questions, calculate mL per hr for an electronic infusion device. -Ordered: 2000 mL NS in 24 hr.

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An IV of 1000 mL is infusing at 83 mL per hr, and 420 mL remains to be infused. How much time is left for the IV to infuse?

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Step 1:  total volume (TV)  total time (TV) =mL/hr\frac{\text { total volume (TV) }}{\text { total time (TV) }}=\mathrm{mL} / \mathrm{hr} Step 2:  drop factor (Df)×(V)/hr minutes  \frac{\text { drop factor }(D f) \times(V) / h r }{\text { minutes }} =gtt/min=\mathrm{gtt} / \mathrm{min} Ordered: 1500 mL of D5W to be infused in 12 hr. How many mL per hr will you infuse?

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For the following questions, calculate mL per hr for an electronic infusion device. -Ordered: 1500 mL D5W in 24 hr.

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Calculate infusion completion time. -Ordered: 50 mL in 45 min.

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Calculate infusion completion time. -Ordered: 150 mL in 50 min.

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