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Calculate the flow rate in gtt/min using the formula method. Administer 2.500 mL. D5 0.33% NS in 8 hr. The drop factor is 15 grt/mL

A.

78 gtt/min

B.

65 gtt/min

C.

70 grimin

D.

60 git/min

Answer and Explanation

The Correct Answer is A

Given:

Volume of fluid: 2500 mL

Infusion time: 8 hours

Drop factor: 15 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) = 2500 mL / 8 hr

Infusion rate (mL/hr) = 312.5 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) = (312.5 mL/hr x 15 gtt/mL) / 60 min/hr

Flow rate (gtt/min) = 4687.5 gtt/hr / 60 min/hr

Flow rate (gtt/min) = 78.125 gtt/min

 

Step 3: Round to the nearest whole number:

Flow rate (gtt/min) ≈ 78 gtt/min


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Related Questions

Correct Answer is B

Explanation

Given:
Volume of fluid: 50 mL
Infusion time: 1 hour (60 minutes)
Drop factor: 15 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) = 50 mL / 60 min
Infusion rate (mL/min) = 0.83 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) = 0.83 mL/min x 15 gtt/mL
Flow rate (gtt/min) = 12.5 gtt/min

Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 13 gtt/min

Correct Answer is C

Explanation

Given:

Ordered dose of Augmentin: 250 mg

Drug comes in a 2 gram vial

Reconstituted volume: 77.2 mL

Concentration after reconstitution: 125 mg/5 mL

Step 1: Calculate the total volume of the reconstituted solution:

Total volume = 77.2 mL

Step 2: Calculate the total amount of Augmentin in the solution:

Total amount (mg) = Concentration (mg/mL) x Total volume (mL)

Total amount (mg) = 125 mg/5 mL x 77.2 mL

Total amount (mg) = 1930 mg

Step 3: Determine the number of doses in the vial:

Number of doses = Total amount (mg) / Ordered dose (mg/dose)

Number of doses = 1930 mg / 250 mg/dose

Number of doses = 7.72 doses

Step 4: Calculate the volume per dose:

Volume per dose (mL) = Total volume (mL) / Number of doses

Volume per dose (mL) = 77.2 mL / 7.72 doses

Volume per dose (mL) = 10 mL

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