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Calculate the rate in gtt/min for the following medications being administered IVPB.

Order: Doxycycline 25 mg IVPB D5W 50 mL over 1 hr. Drop factor: 15 gtt/mL

A.

6 gtt/min

B.

20 gtt/min

C.

25 gtt/min

D.

13 gtt/min

Answer and Explanation

The Correct Answer is D

Given:

Volume of fluid: 50 mL

Infusion time: 1 hour (60 minutes)

Drop factor: 15 gtt/mL

 

Formula:

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

 

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

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

Infusion rate (mL/min) = 50 mL / 60 min

Infusion rate (mL/min) = 0.83 mL/min

 

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

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

Flow rate (gtt/min) = 0.83 mL/min x 15 gtt/mL

Flow rate (gtt/min) = 12.5 gtt/min

 

Step 3: Round to the nearest whole number:

Flow rate (gtt/min) ≈ 13 gtt/min


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Related Questions

Correct Answer is C

Explanation

Given:

Desired dose of Vistaril: 15 mg

Concentration of Vistaril: 50 mg/mL

Step 1: Set up the proportion:

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

Step 2: Substitute the values:

15 mg / Volume = 50 mg/mL

Step 3: Solve for the unknown volume:

Volume = 15 mg / 50 mg/mL

Step 4: Calculate the volume:

Volume = 0.3 mL

Correct Answer is B

Explanation

Given:
Volume of fluid: 50 mL
Infusion time: 1 hour (60 minutes)
Drop factor: 15 gtt/mL

Formula:
Flow rate (gtt/min) = (Volume (mL) / Time (min)) x Drop factor (gtt/mL)

Step 1: Calculate the infusion rate in mL/min:
Infusion rate (mL/min) = Volume (mL) / Time (min)
Infusion rate (mL/min) = 50 mL / 60 min
Infusion rate (mL/min) = 0.83 mL/min

Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = Infusion rate (mL/min) x Drop factor (gtt/mL)
Flow rate (gtt/min) = 0.83 mL/min x 15 gtt/mL
Flow rate (gtt/min) = 12.5 gtt/min

Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 13 gtt/min

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