Order: lidocaine 2 g in 250 mL of D5W at 30 mL/h
What is the flow rate?

250 mL/hr

30 mL/hr

15 mL/hr

150 mL/hr

Answer and Explanation

The Correct Answer is B

The order directly states that the infusion rate is 30 mL/hr.

The information about the amount of Lidocaine (2 g) and the volume of D5W (250 mL) is irrelevant to determining the flow rate in this case.

The flow rate is already specified as 30 mL/hr in the order.

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Correct Answer is A

Explanation

Given:

Volume of fluid: 1 liter = 1000 mL

Infusion time: 6 hours

Drop factor: 10 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 / 6 hr

Infusion rate (mL/hr) = 166.67 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) = (166.67 mL/hr x 10 gtt/mL) / 60 min/hr

Flow rate (gtt/min) = 1666.7 gtt/hr / 60 min/hr

Flow rate (gtt/min) = 27.78 gtt/min

Step 3: Round to the nearest whole number:

Flow rate (gtt/min) ≈ 28 gtt/min

A. 50 gtt/min B. 15 gtt/min C. 10 gtt/min D. 100 gtt/min

Correct Answer is A

Explanation

1. Determine the total volume to be infused: 100 mL

2. Calculate the infusion time in minutes: 30 minutes

3. Calculate the drip rate (gtt/min):

Drip rate = (Total volume / Infusion time) x Drop factor

Drip rate = (100 mL / 30 minutes) x 15 gtt/mL

Drip rate = 50 gtt/min

Therefore, the correct answer is 50 gtt/min

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Order: lidocaine 2 g in 250 mL of D5W at 30 mL/h What is the flow rate?

Nursing Test Bank

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Order: lidocaine 2 g in 250 mL of D5W at 30 mL/h
What is the flow rate?