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A continuous heparin infusion is to begin at 15 units/kg/hr for a client weighing 82 kg. Available: 25,000 units of heparin in 250 mL D5W. Calculate the mL/hr. (the pump is capable of delivering in tenths of an mL).

12.3 mL/hr

123 mL/hr

125 mL/hr

12 mL/hr

Answer and Explanation

The Correct Answer is A

Given:

Ordered dose of Heparin: 15 units/kg/hr

Patient weight: 82 kg

Total Heparin in solution: 25,000 units

Volume of solution: 250 mL

Step 1: Calculate the total dose of Heparin in units/hr:

Total dose (units/hr) = Ordered dose (units/kg/hr) x Patient weight (kg)

Total dose (units/hr) = 15 units/kg/hr x 82 kg

Total dose (units/hr) = 1230 units/hr

Step 2: Calculate the concentration of Heparin in the solution:

Concentration (units/mL) = Total Heparin (units) / Volume of solution (mL)

Concentration (units/mL) = 25,000 units / 250 mL

Concentration (units/mL) = 100 units/mL

Step 3: Calculate the infusion rate in mL/hr:

Infusion rate (mL/hr) = Total dose (units/hr) / Concentration (units/mL)

Infusion rate (mL/hr) = 1230 units/hr / 100 units/mL

Infusion rate (mL/hr) = 12.3 mL/hr

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Correct Answer is A

Explanation

Given:

Value in grams: 5,524 g

To convert grams to kilograms, we need to divide the value by 1000.

Step 1: Divide the value by 1000:

5,524 g / 1000 = 5.524 kg

A. 90 ml B. 270 mL C. 1440 mL D. 360 mL

Correct Answer is B

Explanation

Given:

Ordered volume of Isomil: 12 oz

Step 1: Determine the volume of Isomil needed for 1/4 strength:

Volume of Isomil for 1/4 strength = Original volume x (1/4)

Volume of Isomil for 1/4 strength = 12 oz x (1/4)

Volume of Isomil for 1/4 strength = 3 oz

Step 2: Calculate the volume of solvent (water) needed:

Solvent volume = Original volume - Volume of Isomil for 1/4 strength

Solvent volume = 12 oz - 3 oz

Solvent volume = 9 oz

Step 3: Convert ounces to milliliters:

1 oz = 29.5735 mL

Solvent volume (mL) = 9 oz x 29.5735 mL/oz

Solvent volume (mL) = 266.1615 mL

Step 4: Round to the nearest whole number:

Solvent volume (mL) ≈ 270 mL

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A continuous heparin infusion is to begin at 15 units/kg/hr for a client weighing 82 kg. Available: 25,000 units of heparin in 250 mL D5W. Calculate the mL/hr. (the pump is capable of delivering in tenths of an mL).

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Convert the following metric measures to kg by moving the decimal: 5,524 g

Correct Answer is A

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