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Calculate the flow rate in mL/hr. (Equpment used is programmable in whole mL/hr) 180 mL 0.45% NS in 40 min by infusion group

A.

4.5 mL/hr

B.

270 mL/hr

C.

180 mL/hr

D.

200 mL/hr

Answer and Explanation

The Correct Answer is B

Given:

Volume of fluid: 180 mL

Infusion time: 40 minutes

 

Step 1: Convert infusion time to hours:

Infusion time (hr) = 40 min / 60 min/hr

Infusion time (hr) = 0.67 hr

 

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

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

Infusion rate (mL/hr) = 180 mL / 0.6667 hr

Infusion rate (mL/hr) = 269.987 mL/hr

 

Step 3: Round to the nearest whole number:

Infusion rate (mL/hr) ≈ 270 mL/hr


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Related Questions

Correct Answer is B

Explanation

Given:

Volume of fluid: 100 mL

Infusion time: 1 hour (60 minutes)

Drop factor: 10 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) = 100 mL / 60 min

Infusion rate (mL/min) = 1.67 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) = 1.67 mL/min x 10 gtt/mL

Flow rate (gtt/min) = 16.7 gtt/min

Step 3: Round to the nearest whole number:

Flow rate (gtt/min) ≈ 17 gtt/min

Correct Answer is B

Explanation

Given:
Ordered dose of Diazepam: 4 mg
Concentration of Diazepam oral solution: 5 mg/5 mL

Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)

Step 2: Substitute the values:
4 mg / Volume = 5 mg/5 mL

Step 3: Solve for the unknown volume:
Volume = 4 mg / (5 mg/5 mL)
Volume = 4 mg x (5 mL/5 mg)
Volume = 4 mL

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