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Tagamet 300 mg IVPB q8hr. The medication has been added to 50 mL DSW to infuse over 30 minutes. How many ml/hr?

A.

125 mL/hr

B.

6 mL/hr

C.

100 mL/hr

D.

38 mL/hr

Answer and Explanation

The Correct Answer is C

Given:
Volume of fluid: 50 mL (DSW)
Infusion time: 30 minutes

Formula:
Flow rate (mL/hr) = Volume (mL) / Time (hr)

Step 1: Convert infusion time to hours:
Infusion time (hr) = 30 min / 60 min/hr
Infusion time (hr) = 0.5 hr

Step 2: Calculate the infusion rate in mL/hr:
Flow rate (mL/hr) = Volume (mL) / Infusion time (hr)
Flow rate (mL/hr) = 50 mL / 0.5 hr
Flow rate (mL/hr) = 100 mL/hr


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Related Questions

Correct Answer is D

Explanation

Given:

Ordered dose of Heparin: 9 units/kg/hr

Patient weight: 76 kg

Concentration of Heparin: 50 units/mL

Step 1: Calculate the total dose of Heparin:

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

Total dose (units/hr) = 9 units/kg/hr x 76 kg

Total dose (units/hr) = 684 units/hr

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

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

Infusion rate (mL/hr) = 684 units/hr / 50 units/mL

Infusion rate (mL/hr) = 13.68 mL/hr

Step 3: Round to the nearest tenth:

Infusion rate (mL/hr) ≈ 13.7 mL/hr

Correct Answer is C

Explanation

Given:
Volume of fluid: 1,500 mL
Infusion time: 12 hours
Drop factor: 10 gtt/mL

Formula for mL/hr:
Flow rate (mL/hr) = Volume (mL) / Time (hr)

Step 1: Calculate the flow rate in mL/hr:
Flow rate (mL/hr) = 1,500 mL / 12 hr
Flow rate (mL/hr) = 125 mL/hr
Formula for gtt/min:
Flow rate (gtt/min) = (Volume (mL) / Time (hr)) x Drop factor (gtt/mL) / 60 min/hr

Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = (1,500 mL / 12 hr) x 10 gtt/mL / 60 min/hr
Flow rate (gtt/min) = 125 mL/hr x 10 gtt/mL / 60 min/hr
Flow rate (gtt/min) = 1250 gtt/hr / 60 min/hr
Flow rate (gtt/min) = 20.83 gtt/min

Step 3: Round to the nearest whole number:
Flow rate (mL/hr) = 125 mL/hr
Flow rate (gtt/min) ≈ 21 gtt/min

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