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A nurse is preparing to administer 0.9% sodium chloride (NS) 100 mL/V to infuse over 4 hr. The drip factor of the manual IV tubing is 60 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number.)

A.

27 gtt/min

B.

25 gtt/min

C.

23 gtt/min

D.

30 gtt/min

Answer and Explanation

The Correct Answer is B

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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Related Questions

Correct Answer is B

Explanation

Calculate the dosage using the ratio and proportion:

Given:

Order: 200 mg p.o. t.i.d.

Available: Tegretol 100 mg chewable tablets.

Step 1: Set up the proportion

Availabledose(100mg) : 1tablet = Ordereddose(200mg) : xtablets

Step 2: Solve for ?

100 mg : 1 tab = 200 mg : ? tabs

? = 200/100 = 2 tablets

Correct Answer is B

Explanation

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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