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The patient is receiving nitroglycerin 55 mcg/min.

Available: Nitroglycerin in 5% Dextrose Injection 25 mg per 250 mL (100 mcg/mL)

What is the flow rate?

3 mL/hr

55 mL/hr

30 mL/hr

33 mL/hr

Answer and Explanation

The Correct Answer is D

Convert the dosage to mcg per hour:

55 mcg/min × 60 min = 3300 mcg/hr

Determine the concentration of nitroglycerin available:

The concentration is 25 mg per 250 mL, which converts to 100 mcg/mL.

Calculate the flow rate in mL per hour using the dosage and concentration:

Flow rate (mL/hr)=(Dose (mcg/hr)/Concentration (mcg/mL))

(3300 mcg/hr100 mcg/mL)=33 mL/hr

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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

A. 27 gtt/min B. 25 gtt/min C. 23 gtt/min D. 30 gtt/min

Correct Answer is B

Explanation

Given:

Volume of fluid: 100 mL

Infusion time: 4 hours

Drop factor: 60 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) = 100 mL / 4 hr

Infusion rate (mL/hr) = 25 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) = (25 mL/hr x 60 gtt/mL) / 60 min/hr

Flow rate (gtt/min) = 1500 gtt/hr / 60 min/hr

Flow rate (gtt/min) = 25 gtt/min

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The patient is receiving nitroglycerin 55 mcg/min. Available: Nitroglycerin in 5% Dextrose Injection 25 mg per 250 mL (100 mcg/mL) What is the flow rate?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Order: ceftriaxone 2 g in 100 mL of 0.9% NaCI (normal saline solution) over 30 minutes Available: Macro drip set: 15 gtt/mL Calculate the IV flow rate in gtt/min.

Correct Answer is A

Explanation

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Correct Answer is B

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The patient is receiving nitroglycerin 55 mcg/min.

Available: Nitroglycerin in 5% Dextrose Injection 25 mg per 250 mL (100 mcg/mL)

What is the flow rate?