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Calculate the flow rate I mL/hr. and Units/hr. (Equipment used is programmable in whole mL/hr and Show all work) Order: 25,000 units of Heparin in 250 mL to infuse at 11 mL/hr. Calculate rate in units/hr.

A.

900 units/hr

B.

1,000 units/hr

C.

2.000 units/hr

D.

1,100 units/hr

Answer and Explanation

The Correct Answer is D

Given:

Total Heparin in solution: 25,000 units

Volume of solution: 250 mL

Infusion rate: 11 mL/hr

 

Step 1: 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 2: Calculate the infusion rate in units/hr:

Infusion rate (units/hr) = Infusion rate (mL/hr) x Concentration (units/mL)

Infusion rate (units/hr) = 11 mL/hr x 100 units/mL

Infusion rate (units/hr) = 1100 units/hr


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Related Questions

Correct Answer is B

Explanation

Given:

Ordered dose of Digoxin: 0.375 mg daily

Available Digoxin tablets: 0.25 mg/tablet

Step 1: Set up the proportion:

Desired dose (mg) / Available tablet strength (mg/tablet) = Number of tablets

Step 2: Substitute the values:

0.375 mg / 0.25 mg/tablet = Number of tablets

Step 3: Calculate the number of tablets:

Number of tablets = 0.375 mg ÷ 0.25 mg/tablet

Number of tablets = 1.5 tablets

Correct Answer is A

Explanation

Given:

Volume of fluid: 1000 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) = 1000 mL / 8 hr

Infusion rate (mL/hr) = 125 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) = (125 mL/hr x 15 gtt/mL) / 60 min/hr

Flow rate (gtt/min) = 1875 gtt/hr / 60 min/hr

Flow rate (gtt/min) = 31.25 gtt/min

Step 3: Round to the nearest whole number:

Flow rate (gtt/min) ≈ 31 gtt/min

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