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Calculate the mL's of Heparin you will administer.

Order: Heparin 100,000 units IV 98h

Available: Heparin 25,000 units/10 mL

A.

10 mL

B.

14 mL

C.

40 mL

D.

4mL

Answer and Explanation

The Correct Answer is C

Given:

Ordered dose of Heparin: 100,000 units

Concentration of Heparin: 25,000 units/10 mL

 

Step 1: Set up the proportion:

Desired dose (units) / Volume to administer (mL) = Concentration (units/mL)

 

Step 2: Substitute the values:

100,000 units / Volume = 25,000 units/10 mL

 

Step 3: Solve for the unknown volume:

Volume = 100,000 units / (25,000 units/10 mL)

Volume = 100,000 units x (10 mL / 25,000 units)

Volume = 40 mL


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Related Questions

Correct Answer is B

Explanation

Given:

Volume of fluid: 500 mL

Infusion time: 8 hours

Drop factor: 10 gtt/mL

Medication volume: 10 mL (added to the fluid)

Step 1: Calculate the total volume to be infused:

Total volume = Volume of fluid + Volume of medication

Total volume = 500 mL + 10 mL

Total volume = 510 mL

Step 2: Calculate the infusion rate in mL/hr:

Infusion rate (mL/hr) = Total volume (mL) / Infusion time (hr)

Infusion rate (mL/hr) = 510 mL / 8 hr

Infusion rate (mL/hr) = 63.75 mL/hr

Step 3: Calculate the infusion rate in gtt/min:

Infusion rate (gtt/min) = Infusion rate (mL/hr) x Drop factor (gtt/mL) / 60 min/hr

Infusion rate (gtt/min) = 63.75 mL/hr x 10 gtt/mL / 60 min/hr

Infusion rate (gtt/min) = 10.625 gtt/min

Step 4: Round to the nearest whole number:

Infusion rate (gtt/min) ≈ 11 gtt/min

Correct Answer is A

Explanation

Given:

Volume of fluid: 2500 mL

Infusion time: 8 hours

Drop factor: 15 gtt/mL

Formula:

Flow rate (gtt/min) = (Volume (mL) / Time (hr)) x Drop factor (gtt/mL) / 60 min/hr

Step 1: Calculate the infusion rate in mL/hr:

Infusion rate (mL/hr) = Volume (mL) / Time (hr)

Infusion rate (mL/hr) = 2500 mL / 8 hr

Infusion rate (mL/hr) = 312.5 mL/hr

Step 2: Calculate the flow rate in gtt/min:

Flow rate (gtt/min) = (Infusion rate (mL/hr) x Drop factor (gtt/mL)) / 60 min/hr

Flow rate (gtt/min) = (312.5 mL/hr x 15 gtt/mL) / 60 min/hr

Flow rate (gtt/min) = 4687.5 gtt/hr / 60 min/hr

Flow rate (gtt/min) = 78.125 gtt/min

Step 3: Round to the nearest whole number:

Flow rate (gtt/min) ≈ 78 gtt/min

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